.ffe-disclaimer{border-inline-start:4px solid var(--amber);background:#faf3e3;border-radius:10px;margin-bottom:16px;padding:9px 13px;font-size:12.5px;line-height:1.7}.ffe-sec{color:var(--steel-dark);background:var(--steel-light);border-inline-start:3px solid var(--steel);border-radius:9px;margin:15px 0 8px;padding:7px 10px;font-size:12px;font-weight:700}.ffe-sec.ffe-toggle{cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;display:flex}.ffe-sec.ffe-toggle:hover{filter:brightness(.96)}.ffe-sec:first-of-type{margin-top:0}.ffe-layer{border:1px solid var(--line);background:var(--surface);border-radius:11px;margin-bottom:10px;padding:10px 12px}.ffe-layer.off{opacity:.6}.ffe-lay-h{color:var(--ink);cursor:pointer;align-items:center;gap:7px;margin:0;font-size:13px;font-weight:700;display:flex}.ffe-lay-q{color:var(--steel-dark);direction:ltr;margin-inline-start:auto;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11.5px;font-weight:600}.ffe-lay-body{margin-top:8px}.ffe-lay-body .num-row input{background:var(--card)}.ffe-row{align-items:center;gap:10px;margin-bottom:10px;display:flex}.ffe-row label{color:var(--muted);flex:1;font-size:13.5px}.ffe-row select{border:1px solid var(--line);background:var(--card);border-radius:9px;outline:none;width:170px;max-width:60%;padding:7px 10px;font-family:inherit;font-size:13.5px}.ffe-row select:focus{border-color:var(--steel);box-shadow:0 0 0 3px var(--steel-light)}.ffe-hint{color:var(--faint);margin:2px 0 8px;font-size:11.5px}.ffe-chips{flex-wrap:wrap;gap:6px;margin-bottom:6px;display:flex}.ffe-chip{border:1.5px solid var(--line);background:var(--card);color:var(--steel-dark);cursor:pointer;border-radius:999px;padding:6px 11px;font-family:inherit;font-size:12px;font-weight:600;line-height:1.3;transition:all .15s}.ffe-chip:hover{border-color:var(--steel);background:var(--steel-light)}.ffe-chip.on{background:var(--steel);color:#fff;border-color:var(--steel)}.ffe-tint-steel .result-card{background:var(--steel-light);border-color:#0000}.ffe-tint-ten .result-card{background:#fdecea;border-color:#0000}.ffe-tint-ten .result-card .rc-value{color:var(--ten)}.ffe-tint-comp .result-card{background:#e1f5ee;border-color:#0000}.ffe-tint-purple .result-card{background:#eeedfe;border-color:#0000}.ffe-unit-toggle{border:1.5px solid var(--line);border-radius:8px;display:inline-flex;overflow:hidden}.ffe-unit-toggle button{background:var(--card);cursor:pointer;color:var(--muted);border:none;padding:4px 12px;font-family:inherit;font-size:12px;font-weight:700}.ffe-unit-toggle button.on{background:var(--steel);color:#fff}.ffe-card-head{justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px;display:flex}.ffe-card-head h2{margin:0}.ffe-bd{margin-top:10px}.ffe-bd table{border-collapse:collapse;direction:ltr;width:100%;font-size:12px}.ffe-bd th{background:var(--surface);color:var(--muted);padding:5px 6px;font-weight:600}.ffe-bd td{border-bottom:1px solid var(--surface);text-align:center;padding:5px 6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.ffe-bd tr.tot td{color:var(--steel-dark);background:var(--steel-light);font-weight:700}.ffe-note{background:var(--steel-light);border-inline-start:3px solid var(--steel);color:var(--steel-dark);border-radius:8px;margin-top:12px;padding:10px 13px;font-size:12.5px;line-height:1.7}.ffe-step{background:var(--surface);border-radius:9px;margin-bottom:6px;padding:9px 12px;font-size:12.5px}.ffe-step .ffe-step-l{color:var(--muted);margin-bottom:2px;font-size:12px}.ffe-step .ffe-step-eq{color:var(--steel-dark);text-align:start;direction:ltr;unicode-bidi:plaintext;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}.ffe-sgrid{grid-template-columns:repeat(auto-fill,minmax(146px,1fr));gap:10px;display:grid}.ffe-scard{border:1px solid var(--line);text-align:center;cursor:pointer;background:var(--card);border-radius:12px;padding:10px 8px;transition:all .15s}.ffe-scard:hover{border-color:var(--steel);transform:translateY(-2px);box-shadow:0 5px 16px #2f6fb524}.ffe-scard.on{border-color:var(--steel);background:var(--steel-light)}.ffe-scard svg{width:100%;height:56px;margin-bottom:5px;display:block}.ffe-scard .ffe-nm{color:var(--ink);min-height:30px;font-size:11.5px;font-weight:600;line-height:1.3}.ffe-scard .ffe-num{color:var(--steel-dark);direction:ltr;margin-top:4px;font-size:19px;font-weight:700}.ffe-scard .ffe-ssub{color:var(--faint);direction:ltr;font-size:10.5px}.ffe-diagram{cursor:zoom-in;width:100%;height:auto;display:block}.ffe-diagram:hover{outline-offset:2px;border-radius:6px;outline:2px solid #2f6fb58c}.ffe-lb{z-index:99999;background:#101620db;justify-content:center;align-items:center;padding:18px;display:flex;position:fixed;inset:0}.ffe-lb-stage{background:#fff;border-radius:12px;max-width:96vw;max-height:92vh;padding:12px;overflow:auto;box-shadow:0 12px 50px #00000080}.ffe-lb-stage svg{cursor:default;width:min(92vw,900px);height:auto;display:block}.ffe-lb-x{top:8px;color:#fff;cursor:pointer;-webkit-user-select:none;user-select:none;font-size:32px;line-height:1;position:absolute;inset-inline-end:18px}.ffe-lb-hint{text-align:center;color:#dfe6ee;font-size:12px;position:absolute;bottom:12px;left:0;right:0}