.guru-banner-section { padding: 42px 0 0; }
.guru-banner { width: min(900px, 100%); margin: 0 auto; overflow: hidden; background: var(--emerald-900); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.guru-banner img { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: contain; }
.guru-banner figcaption { padding: 12px 16px; color: var(--muted); font-size: .72rem; text-align: center; }
@media (max-width: 620px) { .guru-banner-section { padding-top: 24px; } .guru-banner { border-radius: 14px; } }