body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 40px;
    max-width: 550px;
    width: 100%;
    text-align: center;
}

h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 24px;
}

p {
    margin-bottom: 20px;
    line-height: 1.6;
}

.highlight {
    color: #e74c3c;
    font-weight: bold;
}

.timer {
    font-size: 72px;
    font-weight: bold;
    color: #3498db;
    margin: 20px 0;
}

.buttons {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
}

.btn-cancel {
    background-color: #f8f9fa;
    color: #495057;
    border: 1px solid #ced4da;
}

.btn-cancel:hover {
    background-color: #e9ecef;
}

.btn-jump {
    background-color: #2ecc71;
    color: white;
}

.btn-jump:hover {
    background-color: #27ae60;
}

.sorry-image {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    display: block;
}

.message-box {
    background-color: #f1f8ff;
    border-left: 4px solid #3498db;
    padding: 15px;
    margin: 20px 0;
    text-align: left;
}

@media (max-width: 576px) {
    .container {
        padding: 25px;
    }
    
    .timer {
        font-size: 60px;
    }
    
    .buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
    }
}