.fbprev{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden}.fbprev .top{background:var(--tint-gray);border-bottom:1px solid var(--line);padding:12px 16px;display:flex;align-items:center;gap:8px}.fbprev .top i{width:11px;height:11px;border-radius:50%;background:var(--line)}.fbprev .top small{margin-left:8px;color:var(--muted);font-weight:700;font-size:12px}.fbprev .body{padding:20px}.fld{margin-bottom:14px}.fld label{display:block;font-size:12.5px;font-weight:700;color:var(--slate);margin-bottom:6px}.fld .inp{height:38px;border:1px solid var(--line);border-radius:9px;background:var(--tint-gray)}.fld .inp.sm{width:55%}.fld .cond{margin-top:8px;padding:10px 12px;border-left:3px solid var(--ok);background:var(--tint-mint);border-radius:8px;font-size:12.5px;color:#059669;font-weight:600}.fld .cond.warn{border-left-color:var(--violet);background:var(--tint-lav);color:var(--indigo-ink)}.cascade{display:flex;gap:8px}.cascade .inp{flex:1}