body {
    font-family: "Noto Serif JP", serif;
    background-color: #edf9ff;
    color: #404040;
    line-height: 1.5;
    margin: 0;
    padding: 0;
}

#thanks {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.thanks-container {
    background-color: white;
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 600px;
    width: 90%;
}

.thanks-logo {
    margin-bottom: 2rem;
}

.thanks-logo img {
    max-width: 200px;
    height: auto;
}

.thanks-title {
    font-size: 2rem;
    color: #9D4F85;
    margin-bottom: 1.5rem;
}

.thanks-message {
    font-size: 1rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.thanks-info {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.thanks-info p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
}

.thanks-info span {
    font-weight: bold;
    color: #9D4F85;
}

.back-to-home {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: #9D4F85;
    color: white;
    text-decoration: none;
    border-radius: 2rem;
    font-weight: bold;
    transition: all 0.3s ease;
}

.back-to-home:hover {
    background-color: #B5DBFF;
    color: #9D4F85;
}

@media (max-width: 780px) {
    .thanks-container {
        padding: 2rem;
    }

    .thanks-title {
        font-size: 1.5rem;
    }

    .thanks-message {
        font-size: 0.9rem;
    }
}

@media (max-width: 500px) {
    .thanks-container {
        padding: 1.5rem;
    }

    .thanks-title {
        font-size: 1.3rem;
    }

    .thanks-message {
        font-size: 0.8rem;
    }

    .back-to-home {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}