.calculator *{box-sizing:border-box}.calculator a{color:var(--accent)}.calculator .wrap{max-width:1100px;margin:0 auto;padding:0 16px}.calculator header.site{background:var(--head);color:var(--head-ink)}.calculator header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}.calculator .logo{color:var(--head-ink);text-decoration:none;font-weight:800;letter-spacing:.02em;font-size:20px}.calculator .logo span{color:var(--volt)}.calculator header.site nav a{color:var(--head-ink);opacity:.8;text-decoration:none;font-size:15px;margin-left:18px}.calculator header.site nav a:hover{opacity:1}.calculator .hero{background:var(--head);color:var(--head-ink);padding:28px 0 64px}.calculator .crumb{font-size:13px;opacity:.65;margin-bottom:10px}.calculator .crumb a{color:inherit}.calculator h1{font-size:clamp(28px,5vw,44px);line-height:1.1;margin:0 0 12px;letter-spacing:-.01em}.calculator h1 em{font-style:normal;color:var(--volt)}.calculator .lead{max-width:680px;opacity:.85;margin:0;font-size:17px}.calculator .grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:-40px}@media(min-width:900px){.calculator .grid{grid-template-columns:1.15fr .85fr;align-items:start}}.calculator .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.calculator .card h2{font-size:18px;margin:0 0 14px}.calculator fieldset{border:0;margin:0 0 20px;padding:0}.calculator legend,.calculator .lbl{font-weight:700;font-size:14px;margin-bottom:8px;display:flex;justify-content:space-between;width:100%}.calculator legend small,.calculator .lbl small{font-weight:500;color:var(--muted)}.calculator .hint{font-size:13px;color:var(--muted);margin:6px 0 0}.calculator .seg{display:grid;gap:6px;grid-template-columns:repeat(auto-fit,minmax(0,1fr))}.calculator .seg input{position:absolute;opacity:0;pointer-events:none}.calculator .seg label{display:block;text-align:center;padding:10px 6px;border:1.5px solid var(--line);border-radius:10px;
  cursor:pointer;font-size:14px;font-weight:600;line-height:1.2;user-select:none;transition:.15s}.calculator .seg label small{display:block;font-weight:500;color:var(--muted);font-size:12px;margin-top:2px}.calculator .seg input:checked + label{border-color:var(--accent);background:var(--soft)}.calculator .seg input:focus-visible + label{outline:2px solid var(--accent);outline-offset:2px}.calculator .seg.c4{grid-template-columns:repeat(2,1fr)}@media(min-width:520px){.calculator .seg.c4{grid-template-columns:repeat(4,1fr)}}.calculator .seg.modes{display:flex;flex-wrap:wrap}.calculator .seg.modes label{flex:1 1 calc(50% - 6px);min-width:0}.calculator .seg.modes.n3 label,.calculator .seg.modes.n5 label{flex-basis:calc(33.3% - 6px)}@media(min-width:520px){.calculator .seg.modes label{flex-basis:0 !important}}.calculator .select{position:relative}.calculator .select select{width:100%;appearance:none;-webkit-appearance:none;font:inherit;font-size:16px;font-weight:700;color:var(--ink);
  background:var(--bg);border:1.5px solid var(--line);border-radius:10px;padding:11px 40px 11px 12px;cursor:pointer}.calculator .select select:focus{outline:none;border-color:var(--accent)}.calculator .select::after{content:"";position:absolute;right:16px;top:50%;width:8px;height:8px;margin-top:-6px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);pointer-events:none}.calculator .motor-info{font-size:13px;color:var(--muted);margin:8px 0 0}.calculator .row3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.calculator .num{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}.calculator .num input{width:100%;font:inherit;font-size:17px;font-weight:700;color:var(--ink);background:var(--bg);
  border:1.5px solid var(--line);border-radius:10px;padding:9px 10px}.calculator .num input:focus{outline:none;border-color:var(--accent)}.calculator input[type=range]{width:100%;accent-color:var(--accent);height:28px}.calculator .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}.calculator .chips button{font:inherit;font-size:13px;font-weight:600;border:1.5px solid var(--line);background:transparent;
  color:var(--ink);border-radius:999px;padding:4px 11px;cursor:pointer}.calculator .chips button.on{border-color:var(--accent);background:var(--soft)}.calculator .result{position:relative}@media(min-width:900px){.calculator .result{position:sticky;top:16px}}.calculator .big{background:var(--head);color:var(--head-ink);border-radius:12px;padding:20px;text-align:center;margin-bottom:16px}.calculator .big .k{font-size:13px;text-transform:uppercase;letter-spacing:.08em;opacity:.7}.calculator .big .v{font-size:clamp(48px,9vw,64px);font-weight:800;line-height:1;margin:6px 0;color:var(--volt);font-variant-numeric:tabular-nums}.calculator .big .v span{font-size:.4em;color:var(--head-ink);font-weight:700}.calculator .big .s{font-size:14px;opacity:.8}.calculator .battery{height:10px;background:rgba(255,255,255,.12);border-radius:5px;margin-top:14px;overflow:hidden}.calculator .battery i{display:block;height:100%;background:var(--volt);border-radius:5px;transition:width .3s}.calculator .stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:18px}.calculator .stat{border:1px solid var(--line);border-radius:10px;padding:10px 12px}.calculator .stat .k{font-size:12px;color:var(--muted)}.calculator .stat .v{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums}.calculator .cmp h3{font-size:14px;margin:0 0 10px}.calculator .bar{display:grid;grid-template-columns:96px 1fr 62px;align-items:center;gap:8px;font-size:13px;margin-bottom:7px}.calculator .bar .t{height:12px;background:var(--line);border-radius:6px;overflow:hidden}.calculator .bar .t i{display:block;height:100%;background:var(--muted);border-radius:6px;transition:width .3s}.calculator .bar.on .t i{background:var(--accent)}.calculator .bar.on{font-weight:700}.calculator .bar b{text-align:right;font-variant-numeric:tabular-nums}.calculator .note{font-size:12px;color:var(--muted);margin:14px 0 0}.calculator .crosslink{display:block;margin:18px 0 0;font-size:14px;font-weight:600}.calculator .content{max-width:760px;margin:44px auto 0}.calculator .content h2{font-size:24px;margin:36px 0 10px}.calculator .content h3{font-size:18px;margin:22px 0 6px}.calculator .content p,.calculator .content li{color:var(--ink)}.calculator .content ul{padding-left:20px}.calculator .tbl{width:100%;border-collapse:collapse;font-size:15px;margin:10px 0}.calculator .tbl th,.calculator .tbl td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left}.calculator .tbl th{font-size:13px;color:var(--muted);font-weight:600}.calculator details{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:10px 0;background:var(--card)}.calculator summary{font-weight:700;cursor:pointer}.calculator details p{margin:10px 0 2px}.calculator footer.site{margin-top:56px;padding:28px 0;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}.calculator footer.site a{color:inherit}.calculator .opt{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:4px;font-size:13px;color:var(--muted)}.calculator .opt input{width:110px;font:inherit;font-size:16px;font-weight:700;color:var(--ink);background:var(--bg);
  border:1.5px solid var(--line);border-radius:10px;padding:8px 10px}.calculator .opt input:focus{outline:none;border-color:var(--accent)}.calculator .row2{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.calculator .cmpcar{margin-top:4px}.calculator .cmpcar h3{font-size:14px;margin:0 0 10px}.calculator .crow{display:grid;grid-template-columns:110px 1fr 74px;gap:8px;align-items:center;font-size:13px;margin-bottom:8px}.calculator .crow .t{height:14px;background:var(--line);border-radius:7px;overflow:hidden}.calculator .crow .t i{display:block;height:100%;border-radius:7px;transition:width .3s}.calculator .crow b{text-align:right;font-variant-numeric:tabular-nums}.calculator .save{background:var(--soft);border-left:3px solid var(--accent);border-radius:8px;padding:10px 12px;font-size:14px;margin-top:12px}.calculator .crosslinks{display:flex;flex-direction:column;gap:6px;margin-top:18px;font-size:14px;font-weight:600}.calculator .setup{border:1.5px solid var(--line);border-radius:12px;padding:14px;margin-bottom:16px}.calculator .setup h3{margin:0 0 10px;font-size:15px;display:flex;align-items:center;gap:8px}.calculator .setup h3 .tag{display:inline-flex;width:22px;height:22px;border-radius:6px;align-items:center;justify-content:center;font-size:13px;color:#fff}.calculator .tagA{background:var(--accent)}.calculator .tagB{background:#3b82c4}.calculator .setup .select{margin-bottom:8px}.calculator .custom input{width:100%;font:inherit;font-size:15px;font-weight:600;color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:10px;padding:9px 10px;margin-bottom:8px}.calculator .custom input:focus{outline:none;border-color:var(--accent)}.calculator .check{display:flex;gap:10px;align-items:center;font-size:15px;font-weight:700;cursor:pointer;margin-bottom:12px}.calculator .check input{width:20px;height:20px;accent-color:#3b82c4}.calculator .sub{font-size:12px;color:var(--muted);margin:-2px 0 8px}.calculator .keys{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px}.calculator .key{border:1px solid var(--line);border-radius:10px;padding:10px 12px}.calculator .key .k{font-size:12px;color:var(--muted)}.calculator .key .v{font-size:18px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.25}.calculator .key .v .b{color:#3b82c4}.calculator .key .v .a{color:var(--accent)}.calculator .key small{display:block;font-size:12px;color:var(--muted);font-weight:500}.calculator .cmpnote{background:var(--soft);border-left:3px solid var(--accent);border-radius:8px;padding:10px 12px;font-size:14px;margin-bottom:16px}.calculator .lanes h3,.calculator .gtab h3{font-size:14px;margin:0 0 10px}.calculator .lane{position:relative;height:22px;margin-bottom:6px;border-radius:6px;background:var(--line)}.calculator .lane .lbl2{position:absolute;left:6px;top:3px;font-size:11px;font-weight:700;color:var(--muted)}.calculator .lane i{position:absolute;top:5px;width:12px;height:12px;margin-left:-6px;border-radius:50%;border:2px solid var(--card)}.calculator .lane.A i{background:var(--accent)}.calculator .lane.B i{background:#3b82c4}.calculator .lane i.x{opacity:.35}.calculator .axis{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin:2px 0 18px;font-variant-numeric:tabular-nums}.calculator .tabs{display:flex;gap:6px;margin-bottom:10px}.calculator .tabs button{font:inherit;font-size:13px;font-weight:700;border:1.5px solid var(--line);background:transparent;color:var(--ink);border-radius:999px;padding:5px 12px;cursor:pointer}.calculator .tabs button.on{border-color:var(--accent);background:var(--soft)}.calculator .gt{width:100%;border-collapse:collapse;font-size:13px;font-variant-numeric:tabular-nums}.calculator .gt th,.calculator .gt td{padding:6px 5px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}.calculator .gt th{font-size:12px;color:var(--muted);font-weight:600}.calculator .gt td:first-child,.calculator .gt th:first-child{text-align:left;font-weight:700}.calculator .gt td small{display:block;color:var(--muted);font-size:11px}.calculator .gt td.x{opacity:.4}.calculator .gt .jump.big{color:#e5484d;font-weight:700}.calculator .crosslinks{display:flex;flex-direction:column;gap:6px;margin-top:18px;font-size:14px;font-weight:600}