逃走中タイマー　上段はタイマー　下段は現在の賞金　時間は60分　1秒300円　50分から1秒800円　タイマーの終了とともに賞金の加算も終了

<!DOCTYPE html>
<html>
<head>
    <title>逃走中タイマー</title>
    <script>
        let timerElement = document.createElement('div');
        let bountyElement = document.createElement('div');
        let totalBounty = 0;

        function startTimer() {
            timerElement.innerText = '00:00:00';
            bountyElement.innerText = '¥0';

            let startTime = Date.now();
            let endTime = startTime + (60 * 60000); // 60 minutes

            let timerInterval = setInterval(function() {
                let currentTime = Date.now();
                let timeRemaining = endTime - currentTime;

                if (timeRemaining <= 0) {
                    clearInterval(timerInterval);
                    alert('Time is up! Your total bounty is ¥' + totalBounty);
                } else {
                    let minutes = Math.floor((timeRemaining % (1000 * 60 * 60)) / (1000 * 60));
                    let seconds = Math.floor((timeRemaining % (1000 * 60)) / 1000);

                    timerElement.innerText = ('0' + minutes).slice(-2) + ':' + ('0' + seconds).slice(-2);

                    let bountyPerSecond = timeRemaining >= 3000000 ? 300 : 800;
                    let bounty = Math.ceil(timeRemaining / 1000) * bountyPerSecond;

                    totalBounty += bounty;
                    bountyElement.innerText = '¥' + totalBounty;
                }
            }, 1000);

            document.body.appendChild(timerElement);
            document.body.appendChild(bountyElement);
        }

        startTimer();
    </script>
</head>
<body>
</body>
</html>