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<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <title>桌面美化组合创意方案最终确认</title>
  <style>
    body {
      background-color: #fff3f3;
      font-family: Arial, sans-serif;
      text-align: center;
      padding-top: 15%;
      margin: 0;
    }
    h1 {
      font-size: 28px;
      color: #2c3e50;
      margin-bottom: 20px;
    }
    #timer {
      font-size: 32px;
      font-weight: bold;
      color: #e74c3c;
      margin-bottom: 15px;
    }
    .hint {
      font-size: 18px;
      color: #7f8c8d;
    }
  </style>
</head>
<body>
  <h1>桌面美化组合创意方案最终确认</h1>
  <div id="timer">加载中...</div>
  <div class="hint">请在下周二 17:30 前最终确认</div>

  <script>
    function getNextTuesday1730() {
      const now = new Date();
      const currentDay = now.getDay(); // 周日:0, 周一:1, 周二:2, ...
      const daysUntilTuesday = (9 - currentDay) % 7 || 7; // 下周二
      const target = new Date(now);
      target.setDate(now.getDate() + daysUntilTuesday);
      target.setHours(17, 30, 0, 0);
      return target;
    }

    function updateCountdown() {
      const now = new Date();
      const deadline = getNextTuesday1730();
      const diff = deadline - now;
      const timerEl = document.getElementById('timer');

      if (diff <= 0) {
        timerEl.innerText = '已截止';
        clearInterval(intervalId);
        return;
      }

      const totalSeconds = Math.floor(diff / 1000);
      const days = Math.floor(totalSeconds / (24 * 3600));
      const hours = Math.floor((totalSeconds % (24 * 3600)) / 3600);
      const minutes = Math.floor((totalSeconds % 3600) / 60);
      const seconds = totalSeconds % 60;

      timerEl.innerText = `还有 ${days} 天 ${hours} 小时 ${minutes} 分钟 ${seconds} 秒`;
    }

    let intervalId = setInterval(updateCountdown, 1000);
    updateCountdown();
  </script>
</body>
</html>