details {
    padding: 1.5rem;
    margin: 1.5rem 0;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

details:hover {
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
    transform: translateY(-2px);
}

summary {
    font-weight: 600;
    cursor: pointer;
    color: #4a5568;
    font-size: 1.1rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

summary:hover {
    color: #5591af;
    border-bottom-color: #5591af;
}

ol {
    margin-left: 2rem;
    margin-top: 1rem;
}

ol li {
    list-style-type: none;
    counter-increment: cnt;
    padding: 0.5rem 0;
    color: #4a5568;
    line-height: 1.6;
}

ol li::before {
    content: counter(cnt) ") ";
    font-weight: 600;
    color: #5591af;
    margin-right: 0.5rem;
}