.hc-calculator#hc-self-rising {
    background: #fdfdfd;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.hc-result-item strong {
    color: #2c3e50;
    font-size: 1.6em;
}

.hc-result-note {
    font-size: 0.85em;
    color: #7f8c8d;
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #eee;
    text-align: center;
}