.vocabulary-section {
    background: #f9fafb;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(44,169,140,0.10), 0 1.5px 4px rgba(44,169,140,0.07);
    padding: 32px 28px 24px 28px;
    margin: 32px 0 32px 0;
    margin-left: auto;
    margin-right: auto;
}
.vocabulary-section h3 {
    font-size: 2em;
    margin-bottom: 18px;
    color: #2ca98c;
    text-align: center;
    letter-spacing: 0.04em;
    font-weight: 700;
}
.vocabulary-section ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px 32px;
    padding: 0;
    margin: 0;
    list-style: none;
}
@media (max-width: 700px) {
    .vocabulary-section ul {
        grid-template-columns: 1fr;
    }
}
.vocabulary-section li {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(44,169,140,0.06);
    padding: 16px 20px;
    margin: 0;
    font-size: 1.08em;
    color: #222;
    transition: box-shadow 0.2s, transform 0.2s;
    display: block;
}
.vocabulary-section li strong {
    color: #dc7603;
    font-size: 1.02em;
    font-weight: 600;
}
.vocabulary-section li:hover {
    box-shadow: 0 4px 18px rgba(44,169,140,0.17);
    transform: translateY(-3px) scale(1.02);
    background: #f6fefd;
}