.portal-hub{padding:56px 0}.portal-hub h2{font-size:clamp(30px,4vw,48px);margin-bottom:12px}
.portal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.portal-card{background:rgba(255,255,255,.84);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}
.portal-card img{border-radius:18px;aspect-ratio:16/10;object-fit:cover}
.portal-card h3{margin:12px 0 8px}.portal-card p{color:var(--muted)}
.portal-icon{font-size:34px}.portal-search{display:flex;gap:10px;margin:22px 0;flex-wrap:wrap}
.portal-search input,.ai-helper textarea{width:100%;border:1px solid var(--line);border-radius:18px;padding:14px;background:#fff}
.development-calendar details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 18px;margin:10px 0}
.development-calendar summary{font-weight:800;cursor:pointer}.ai-helper{padding:26px;border-radius:26px;border:1px solid var(--line);background:#fff}
.ai-answer{margin-top:18px;padding:16px;border-radius:18px;background:var(--yellow-soft);min-height:54px}
@media(max-width:900px){.portal-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.portal-grid{grid-template-columns:1fr}}