diff --git a/static/cd/index.html b/static/cd/index.html
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+++ b/static/cd/index.html
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+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>保研倒计时</title>
+    <style>
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+
+        body {
+            font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+            background: linear-gradient(135deg, #0ab026, #667eea, #f093fb, #4facfe, #43e97b, #fa709a, #0ab026);
+            background-size: 600% 600%;
+            animation: gradientShift 30s ease-in-out infinite;
+            min-height: 100vh;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            color: white;
+            overflow: hidden;
+        }
+
+        @keyframes gradientShift {
+            0% {
+                background-position: 0% 50%;
+            }
+            20% {
+                background-position: 50% 100%;
+            }
+            40% {
+                background-position: 100% 50%;
+            }
+            60% {
+                background-position: 50% 0%;
+            }
+            80% {
+                background-position: 100% 100%;
+            }
+            100% {
+                background-position: 0% 50%;
+            }
+        }
+
+        .countdown-container {
+            text-align: center;
+            background: rgba(255, 255, 255, 0.1);
+            backdrop-filter: blur(10px);
+            border-radius: 20px;
+            padding: 40px;
+            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
+            border: 1px solid rgba(255, 255, 255, 0.2);
+            max-width: 800px;
+            width: 90%;
+        }
+
+        .title {
+            font-size: 2.5rem;
+            margin-bottom: 40px;
+            font-weight: 300;
+            letter-spacing: 2px;
+            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
+        }
+
+        .countdown-display {
+            display: flex;
+            justify-content: center;
+            gap: 30px;
+            margin: 40px 0;
+            flex-wrap: wrap;
+        }
+
+        .time-unit {
+            background: rgba(255, 255, 255, 0.15);
+            border-radius: 15px;
+            padding: 25px 20px;
+            min-width: 120px;
+            backdrop-filter: blur(5px);
+            border: 1px solid rgba(255, 255, 255, 0.2);
+            transition: transform 0.3s ease, box-shadow 0.3s ease;
+        }
+
+        .time-unit:hover {
+            transform: translateY(-5px);
+            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
+        }
+
+        .time-value {
+            font-size: 3rem;
+            font-weight: bold;
+            display: block;
+            margin-bottom: 10px;
+            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
+            color: #fff;
+        }
+
+        .time-label {
+            font-size: 1.1rem;
+            color: rgba(255, 255, 255, 0.9);
+            font-weight: 300;
+            letter-spacing: 1px;
+        }
+
+        .target-date {
+            font-size: 1.5rem;
+            margin-top: 30px;
+            color: rgba(255, 255, 255, 0.8);
+            font-weight: 300;
+        }
+
+        /* 背景动画 */
+        .background-animation {
+            position: fixed;
+            top: 0;
+            left: 0;
+            width: 100%;
+            height: 100%;
+            z-index: -1;
+            overflow: hidden;
+        }
+
+        .floating-element {
+            position: absolute;
+            border-radius: 50%;
+            background: rgba(255, 255, 255, 0.1);
+            animation: float 20s infinite linear;
+        }
+
+        @keyframes float {
+            0% {
+                transform: translateY(100vh) rotate(0deg);
+            }
+            100% {
+                transform: translateY(-100px) rotate(360deg);
+            }
+        }
+
+        /* 响应式设计 */
+        @media (max-width: 768px) {
+            .title {
+                font-size: 2rem;
+            }
+
+            .countdown-display {
+                gap: 20px;
+            }
+
+            .time-unit {
+                min-width: 100px;
+                padding: 20px 15px;
+            }
+
+            .time-value {
+                font-size: 2.5rem;
+            }
+
+            .time-label {
+                font-size: 1rem;
+            }
+
+            .countdown-container {
+                padding: 30px 20px;
+            }
+        }
+
+        @media (max-width: 480px) {
+            .title {
+                font-size: 1.5rem;
+                margin-bottom: 30px;
+            }
+
+            .countdown-display {
+                gap: 15px;
+            }
+
+            .time-unit {
+                min-width: 80px;
+                padding: 15px 10px;
+            }
+
+            .time-value {
+                font-size: 2rem;
+            }
+
+            .target-date {
+                font-size: 1.2rem;
+            }
+        }
+
+        /* 已到达目标时间的样式 */
+        .celebration {
+            animation: celebration 2s infinite;
+        }
+
+        @keyframes celebration {
+            0%, 100% { transform: scale(1); }
+            50% { transform: scale(1.05); }
+        }
+    </style>
+</head>
+<body>
+    <div class="background-animation" id="backgroundAnimation"></div>
+    
+    <div class="countdown-container">
+        <h1 class="title">距离 2025年9月29日 还有</h1>
+        
+        <div class="countdown-display" id="countdownDisplay">
+            <div class="time-unit">
+                <span class="time-value" id="days">00</span>
+                <span class="time-label">天</span>
+            </div>
+            <div class="time-unit">
+                <span class="time-value" id="hours">00</span>
+                <span class="time-label">小时</span>
+            </div>
+            <div class="time-unit">
+                <span class="time-value" id="minutes">00</span>
+                <span class="time-label">分钟</span>
+            </div>
+            <div class="time-unit">
+                <span class="time-value" id="seconds">00</span>
+                <span class="time-label">秒</span>
+            </div>
+        </div>
+        
+        <div class="target-date">下一站：上岸</div>
+    </div>
+
+    <script>
+        // 目标日期：2025年9月29日
+        const targetDate = new Date('2025-09-29T00:00:00').getTime();
+
+        // 创建背景动画元素
+        function createFloatingElements() {
+            const container = document.getElementById('backgroundAnimation');
+            const elementCount = 15;
+
+            for (let i = 0; i < elementCount; i++) {
+                const element = document.createElement('div');
+                element.className = 'floating-element';
+                
+                // 随机大小和位置
+                const size = Math.random() * 60 + 20;
+                element.style.width = size + 'px';
+                element.style.height = size + 'px';
+                element.style.left = Math.random() * 100 + '%';
+                element.style.animationDelay = Math.random() * 20 + 's';
+                element.style.animationDuration = (Math.random() * 10 + 15) + 's';
+                
+                container.appendChild(element);
+            }
+        }
+
+        // 更新倒计时显示
+        function updateCountdown() {
+            const now = new Date().getTime();
+            const distance = targetDate - now;
+
+            const daysElement = document.getElementById('days');
+            const hoursElement = document.getElementById('hours');
+            const minutesElement = document.getElementById('minutes');
+            const secondsElement = document.getElementById('seconds');
+            const titleElement = document.querySelector('.title');
+            const containerElement = document.querySelector('.countdown-container');
+
+            if (distance < 0) {
+                // 时间已到
+                titleElement.textContent = '🎉 时间已到！🎉';
+                daysElement.textContent = '00';
+                hoursElement.textContent = '00';
+                minutesElement.textContent = '00';
+                secondsElement.textContent = '00';
+                containerElement.classList.add('celebration');
+                return;
+            }
+
+            // 计算剩余时间
+            const days = Math.floor(distance / (1000 * 60 * 60 * 24));
+            const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
+            const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
+            const seconds = Math.floor((distance % (1000 * 60)) / 1000);
+
+            // 更新显示（添加前导零）
+            daysElement.textContent = days.toString().padStart(2, '0');
+            hoursElement.textContent = hours.toString().padStart(2, '0');
+            minutesElement.textContent = minutes.toString().padStart(2, '0');
+            secondsElement.textContent = seconds.toString().padStart(2, '0');
+
+            // 移除庆祝动画类（如果存在）
+            containerElement.classList.remove('celebration');
+        }
+
+        // 添加数字变化动画效果
+        function animateNumberChange(element, newValue) {
+            if (element.textContent !== newValue) {
+                element.style.transform = 'scale(1.1)';
+                element.style.transition = 'transform 0.1s ease';
+                
+                setTimeout(() => {
+                    element.textContent = newValue;
+                    element.style.transform = 'scale(1)';
+                }, 50);
+            }
+        }
+
+        // 页面加载完成后初始化
+        document.addEventListener('DOMContentLoaded', function() {
+            createFloatingElements();
+            updateCountdown();
+            
+            // 每秒更新一次倒计时
+            setInterval(updateCountdown, 1000);
+        });
+
+        // 页面可见性变化时重新计算（避免标签页不活跃时计时不准确）
+        document.addEventListener('visibilitychange', function() {
+            if (!document.hidden) {
+                updateCountdown();
+            }
+        });
+    </script>
+</body>
+</html>
