.bkc{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.bkc-card{border:1px solid #e5e7eb;border-radius:18px;background:#fff;padding:18px;box-shadow:0 10px 30px rgba(0,0,0,.06);max-width:720px;margin:0 auto}
.bkc-title{font-size:20px;font-weight:900;margin-bottom:6px}
.bkc-sub{color:#374151;font-size:14px;line-height:1.35}
.bkc-row{display:flex;gap:10px;align-items:center;margin-top:14px}
.bkc-input{flex:1;padding:12px 14px;border:1px solid #d1d5db;border-radius:12px;font-size:16px}
.bkc-btn{padding:12px 14px;border-radius:12px;border:1px solid #111827;background:#111827;color:#fff;font-weight:900;cursor:pointer;white-space:nowrap}
.bkc-hint{margin-top:10px;color:#6b7280;font-size:13px}
.bkc-out{margin-top:12px}
.bkc-box{border:1px solid #e5e7eb;border-radius:14px;padding:12px;background:#f9fafb}
.bkc-ok{border-color:#34d399;background:#ecfdf5}
.bkc-warn{border-color:#fb7185;background:#fff1f2}
.bkc-k{color:#6b7280;font-size:12px;font-weight:800;margin-top:8px}
.bkc-v{color:#111827;font-size:15px}
.bkc-small{color:#6b7280;font-size:12px}
.bkc-odido{margin-top:12px;border:1px solid #e5e7eb;border-radius:14px;padding:12px;background:#ffffff}
.bkc-odido-title{font-weight:1000;margin-bottom:4px}
.bkc-odido-sub{color:#374151;margin-bottom:10px}
.bkc-odido-link{display:inline-block;padding:10px 12px;border-radius:12px;border:1px solid #111827;background:#111827;color:#fff;text-decoration:none;font-weight:900}
@media (max-width:600px){
  .bkc-row{flex-direction:column;align-items:stretch}
  .bkc-btn{width:100%}
}