.kn-wrap{max-width:900px;margin:0 auto}
.kn-bar{display:grid;grid-template-columns:2.4fr 1fr 1fr 1fr;gap:10px;margin-bottom:12px}
.kn-bar input,.kn-bar select{height:48px;border:1px solid #cbd5e1;border-radius:12px;padding:0 12px;font-size:16px;background:#fff;color:#1e2733;min-width:0}
.kn-count{color:#4b5563;font-size:.9rem;margin:6px 2px 14px}
.kn-item{border:1px solid #e2e8f0;border-radius:14px;padding:16px 18px;margin-bottom:12px;background:#fff}
.kn-item h3{font-size:1.05rem;color:#002b49;margin:6px 0 4px}
.kn-item p{color:#374151;font-size:.95rem;line-height:1.55}
.kn-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.8rem;color:#5b6b7a}
.kn-tag{background:#002b49;color:#fff;border-radius:999px;padding:2px 10px;font-weight:600}.kn-tag.alt{background:#e8f0fc;color:#1a5fc4}
.kn-open{display:inline-block;margin-top:10px;font-weight:700;color:#002b49;text-decoration:underline}
.kn-src{margin-left:12px;font-size:.78rem;color:#6b7a86}
.kn-note{margin-top:22px;font-size:.82rem;color:#6b7a86;line-height:1.6}
.kn-empty{padding:30px 0;text-align:center;color:#5b6b7a}
@media(max-width:700px){.kn-bar{grid-template-columns:1fr 1fr}.kn-bar input{grid-column:1/-1}}