:root{--bg:#F1F2EF;--surface:#FFFFFF;--ink:#191C18;--muted:#6A6E67;--faint:#9A9E96;--line:#E3E5DF;--line-strong:#C8CBC2;--accent:#BC5A18;--accent-ink:#8F430F;--accent-soft:#F7ECE2;--good:#2C5E3F;--radius:14px;--mono:'IBM Plex Mono',ui-monospace,monospace;--sans:'IBM Plex Sans',system-ui,-apple-system,sans-serif}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
.wrap{max-width:1000px;margin:0 auto;padding:20px 20px 64px}
a{color:var(--accent-ink)}
.head{display:flex;flex-wrap:wrap;gap:18px;align-items:flex-end;justify-content:space-between;padding-bottom:14px}
.brand{display:flex;flex-direction:column;gap:3px}.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-mark{width:26px;height:26px;border:2px solid var(--ink);border-radius:6px;position:relative;flex:none}
.logo-mark::before{content:"";position:absolute;left:3px;right:3px;bottom:4px;height:0;border-bottom:2px solid var(--accent)}
.logo-mark::after{content:"";position:absolute;left:6px;top:4px;width:0;height:9px;border-left:2px solid var(--ink)}
.logo-name{font-weight:700;font-size:21px;letter-spacing:-0.01em;color:var(--ink)}.logo-name b{color:var(--accent)}
.tagline{font-size:13px;color:var(--muted);max-width:46ch}
.controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.seg{display:inline-flex;border:1px solid var(--line-strong);border-radius:9px;overflow:hidden;background:var(--surface)}
.seg button{appearance:none;border:0;background:transparent;font-family:var(--mono);font-size:12px;letter-spacing:0.04em;text-transform:uppercase;color:var(--muted);padding:8px 12px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--ink);color:#fff}
select.cur{font-family:var(--mono);font-size:12px;border:1px solid var(--line-strong);border-radius:9px;background:var(--surface);color:var(--ink);padding:8px 10px;cursor:pointer}
.ruler{height:14px;background-repeat:repeat-x;background-position:bottom left;background-image:repeating-linear-gradient(90deg,var(--accent) 0 1.5px,transparent 1.5px 48px),repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 8px);background-size:48px 14px,8px 8px;opacity:.9}
.crumb{font-size:12.5px;color:var(--muted);font-family:var(--mono);margin:18px 0 6px}.crumb a{color:var(--muted);text-decoration:none}.crumb a:hover{color:var(--accent-ink)}.crumb span{color:var(--faint)}
h1{font-size:30px;line-height:1.15;letter-spacing:-0.02em;margin:6px 0 10px}
.lede{font-size:17px;color:#33372F;margin:0 0 18px;max-width:70ch}
.panel{display:grid;grid-template-columns:1fr;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
@media(min-width:780px){.panel{grid-template-columns:minmax(0,0.92fr) minmax(0,1.08fr)}}
.inputs{padding:22px 22px}
.inputs h2{font-size:13px;font-family:var(--mono);text-transform:uppercase;letter-spacing:0.08em;color:var(--faint);margin:0 0 14px;font-weight:500}
.field{margin-bottom:14px}.field label{display:block;font-size:13.5px;font-weight:500;margin-bottom:6px}
.inwrap{position:relative;display:flex;align-items:center}
.inwrap input,.inwrap select{width:100%;font-family:var(--sans);font-size:16px;color:var(--ink);background:var(--bg);border:1px solid var(--line-strong);border-radius:9px;padding:11px 12px}
.inwrap input{font-family:var(--mono);font-weight:500}
.inwrap .suffix{position:absolute;right:12px;font-family:var(--mono);font-size:12.5px;color:var(--muted);pointer-events:none}
.inwrap.has-suffix input{padding-right:46px}
input:focus,select:focus{outline:none;border-color:var(--accent)}
.result{background:#15170F;color:#F1F2EC;padding:0 0 20px;display:flex;flex-direction:column}.result .ruler{opacity:1}
.rbody{padding:20px 24px 0}
.rlabel{font-family:var(--mono);font-size:11.5px;text-transform:uppercase;letter-spacing:0.1em;color:#A7AC98}
.readout{display:flex;align-items:baseline;gap:10px;margin:6px 0 2px}
.readout .num{font-family:var(--mono);font-weight:600;font-size:52px;line-height:1;letter-spacing:-0.02em;color:#fff;transition:color .18s}
.readout .num.flash{color:var(--accent)}
.readout .unit{font-family:var(--mono);font-size:19px;color:#E0935F;font-weight:500}
.rows{margin:16px 0 0;border-top:1px solid #2B2E22}
.row{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid #2B2E22;font-size:13.5px}
.row .k{color:#B4B8A8}.row .v{font-family:var(--mono);color:#fff;font-weight:500;text-align:right}
.note{font-size:12.5px;color:#9DA291;margin-top:14px;line-height:1.45}
.ractions{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}
.mini{appearance:none;border:1px solid #3A3E30;background:transparent;color:#E6E8DE;font-family:var(--mono);font-size:11.5px;text-transform:uppercase;letter-spacing:0.04em;padding:8px 11px;border-radius:8px;cursor:pointer}
.mini:hover{border-color:var(--accent);color:#fff}
.embedbox{margin-top:14px;padding:14px;background:rgba(255,255,255,0.05);border:1px solid #3A3E30;border-radius:10px}
.embed-h{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:0.05em;color:#C9CBBF;margin-bottom:9px}
.embedbox textarea{width:100%;box-sizing:border-box;font-family:var(--mono);font-size:11.5px;line-height:1.5;color:#15170F;background:#F1F2EC;border:1px solid #3A3E30;border-radius:7px;padding:9px 10px;resize:vertical}
.embed-actions{display:flex;align-items:center;gap:12px;margin-top:9px;flex-wrap:wrap}
.embed-note{font-size:11px;color:#8FA38C}
.embed-by{display:none}
body.embed .head,body.embed>.wrap>.crumb,body.embed .lede,body.embed .ad-slot,body.embed .prose,body.embed .info,body.embed .sec,body.embed .related,body.embed footer,body.embed .ractions,body.embed .embedbox,body.embed .cta{display:none!important}
body.embed{background:#fff}
body.embed .wrap{max-width:560px;padding:14px}
body.embed h1{font-size:20px;margin:0 0 12px}
body.embed .crumb{display:none}
body.embed .embed-by{display:block;text-align:center;margin-top:12px;font-family:var(--mono);font-size:11px;color:var(--accent-ink);text-decoration:none}
.mini:hover{border-color:#5A5E4E}
.cta{padding:18px 24px 4px;background:var(--accent-soft);border-top:1px solid #E7D9C9;margin-top:auto}
.cta-head{font-weight:700;font-size:15.5px;color:var(--ink);margin-top:8px}
.cta-sub{font-size:13px;color:#7A5A41;margin:3px 0 12px}
.btn{appearance:none;border:0;background:var(--accent);color:#fff;font-family:var(--sans);font-weight:600;font-size:14.5px;padding:12px 18px;border-radius:9px;cursor:pointer;display:inline-flex;align-items:center;gap:8px}
.btn:hover{background:var(--accent-ink)}.btn.arrow::after{content:"\2192"}
.products{display:flex;flex-direction:column;gap:9px;margin-bottom:6px}
.product{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--surface);border:1px solid #E7D9C9;border-radius:10px;padding:10px 12px}
.p-left{min-width:0}.p-tier{font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:0.06em;color:var(--accent-ink)}
.p-name{font-size:13.5px;font-weight:500;color:var(--ink)}.p-price{font-family:var(--mono);font-size:12px;color:var(--muted)}
.shops{display:flex;gap:6px;flex:none}
.shop{font-family:var(--mono);font-size:11px;text-decoration:none;color:var(--accent-ink);border:1px solid #E2C9B2;border-radius:7px;padding:6px 8px;white-space:nowrap}
.shop:hover{background:#fff;border-color:var(--accent)}
.demo-note{font-size:11px;color:#8A6A4D;margin:6px 0 2px;font-style:italic}
.p-img{width:56px;height:56px;border-radius:8px;object-fit:contain;background:#fff;border:1px solid #E7D9C9;flex:none}
.p-img.ph{display:flex;align-items:center;justify-content:center;text-align:center;font-family:var(--mono);font-size:8.5px;line-height:1.15;color:var(--faint);text-transform:uppercase}
.asof{font-size:10px;color:var(--faint);font-family:var(--mono);margin-top:1px}
.or{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:0.08em;color:#9A7A5D;margin:14px 0 10px;display:flex;align-items:center;gap:10px}
.or::before,.or::after{content:"";height:1px;background:#E2C9B2;flex:1}
.ad-slot{margin:26px 0;min-height:90px;border:1px dashed var(--line-strong);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--faint);font-family:var(--mono);font-size:11px;letter-spacing:0.08em;text-transform:uppercase;background:repeating-linear-gradient(45deg,transparent 0 10px,rgba(0,0,0,0.012) 10px 20px)}
.prose{max-width:72ch}.prose p{font-size:15px;color:#33372F;margin:0 0 14px}
.sec{margin-top:30px}.sec>h2{font-size:20px;letter-spacing:-0.01em;margin:0 0 14px}
.info{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px}
@media(min-width:780px){.info{grid-template-columns:1.1fr 0.9fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.card h3{font-size:12px;font-family:var(--mono);text-transform:uppercase;letter-spacing:0.08em;color:var(--accent-ink);margin:0 0 10px;font-weight:600}
.card p{font-size:14px;color:#3A3E36;margin:0 0 10px}
.steps{margin:0;padding-left:18px}.steps li{font-size:14px;color:#3A3E36;margin-bottom:7px}
.faq-q{font-weight:600;font-size:15px;margin-top:16px}.faq-a{font-size:14px;color:var(--muted);margin-top:4px;max-width:72ch}
.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.rel-card{display:block;text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:14px 15px;transition:border-color .15s,transform .15s}
.rel-card:hover{border-color:var(--accent);transform:translateY(-1px)}
.rel-card .rc-name{font-weight:600;font-size:14.5px;color:var(--ink)}.rel-card .rc-sub{font-size:12px;color:var(--muted);margin-top:3px}
footer{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:var(--faint)}
footer .disc{margin-bottom:8px;color:var(--muted)}
footer a{color:var(--muted)}
footer code{font-family:var(--mono);font-size:11px;color:var(--muted);background:var(--surface);border:1px solid var(--line);padding:2px 6px;border-radius:5px}
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;font-size:13.5px;padding:11px 18px;border-radius:10px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
html{scroll-behavior:smooth}
.hero{padding:30px 0 8px}.hero h1{font-size:35px;max-width:18ch;line-height:1.12;letter-spacing:-0.02em}.hero p{font-size:17px;color:#33372F;max-width:58ch}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px 22px;margin:16px 0 4px;font-size:13.5px;color:var(--muted)}.hero-stats span{font-family:var(--mono)}.hero-stats b{color:var(--accent-ink);font-weight:600}
.searchbar{margin:18px 0 14px}.searchbar input{width:100%;box-sizing:border-box;font-family:var(--sans);font-size:16px;color:var(--ink);background:var(--surface);border:1.5px solid var(--line-strong);border-radius:11px;padding:13px 16px}.searchbar input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.searchbar input::placeholder{color:var(--faint)}
.navchips{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.navchip{display:inline-flex;align-items:center;gap:7px;text-decoration:none;font-size:13px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 13px;transition:border-color .15s,background .15s}.navchip:hover{border-color:var(--accent);background:#fff}.navchip b{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--faint)}
.cat,.featured{margin-top:34px;scroll-margin-top:18px}
.cat-head{display:flex;align-items:baseline;gap:12px;margin:0 0 14px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.cat-head h2{font-size:16px;font-family:var(--mono);text-transform:uppercase;letter-spacing:0.06em;color:var(--accent-ink);margin:0;font-weight:600}
.cat-count{font-family:var(--mono);font-size:11.5px;color:var(--faint);margin-left:auto}
.featured .cat-head h2{color:var(--ink)}.featured .cat-head{border-bottom-color:var(--line-strong)}
.calc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(228px,1fr));gap:12px}
.calc-card{display:flex;flex-direction:column;gap:3px;text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:15px 16px;transition:border-color .15s,transform .15s,box-shadow .15s}
.calc-card:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:0 4px 14px rgba(20,23,15,0.05)}
.calc-card .cc-name{font-weight:600;font-size:15px;color:var(--ink)}
.calc-card .cc-sub{font-size:12.5px;color:var(--muted)}
.calc-card .cc-vol{font-family:var(--mono);font-size:11px;color:var(--faint);margin-top:3px}
.feat-grid .calc-card{position:relative;border-left:3px solid var(--accent);background:linear-gradient(180deg,#fff,var(--surface))}
.noresults{margin:30px 0;color:var(--muted);font-size:15px}
.costsec{margin-top:30px}.ctable-wrap{overflow-x:auto}
.ctable{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ctable th{text-align:left;font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:0.05em;color:var(--accent-ink);background:var(--accent-soft);padding:10px 14px;border-bottom:1px solid var(--line)}
.ctable td{padding:10px 14px;border-bottom:1px solid var(--line);color:var(--ink)}
.ctable tr:last-child td{border-bottom:0}.ctable .ct-h{font-weight:600}
.ctable-src{font-size:12px;color:var(--faint);margin-top:8px}
.rviz{margin:16px 0 0;padding:16px 18px 18px;background:var(--surface);border:1px solid var(--line);border-radius:14px;text-align:center}
.rviz svg{max-width:100%;height:auto;display:inline-block}
.rviz .viz-cap{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:0.06em;color:var(--accent-ink);margin:0 0 12px}
@media print{.rviz{break-inside:avoid}}
@media(max-width:560px){.hero h1{font-size:28px}.calc-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
@media print{.controls,.ractions,.cta,.ad-slot,.related,.toast,footer .nav{display:none!important}.panel{border:0}.result{background:#fff;color:#000}.readout .num{color:#000}.readout .unit,.rlabel{color:#444}.row .v{color:#000}.row,.rows{border-color:#ccc}}