/* 门户宫格 */
body.sk-portal .sk-portal-hero{background:linear-gradient(120deg,var(--primary-dark),var(--primary));color:#fff;border-radius:14px;padding:28px 24px;margin-bottom:20px}
body.sk-portal .sk-portal-hero h1{color:#fff;margin:8px 0;font-size:clamp(1.4rem,3vw,2rem)}
body.sk-portal .sk-portal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
body.sk-portal .sk-portal-cell{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;padding:16px;text-decoration:none;color:inherit;box-shadow:var(--shadow)}
body.sk-portal .sk-portal-cell h3{margin:0 0 6px;font-size:1rem;color:var(--primary-dark)}
@media(max-width:800px){body.sk-portal .sk-portal-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){body.sk-portal .sk-portal-grid{grid-template-columns:1fr}}