@font-face{font-family:Geist;src:url('/assets/Geist-Variable.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
*{box-sizing:border-box}html{color-scheme:light;scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 Geist,Arial,sans-serif;--bg:#fbfafc;--paper:#fff;--ink:#201b24;--muted:#5c5261;--line:#d7cfdc;--pink:#ff2c93;--link:#ad075d;--wash:#fce9f3;--focus:#8d0050;--glass:rgba(255,255,255,.9)}html[data-theme=dark]{color-scheme:dark}html[data-theme=dark] body{--bg:#141116;--paper:#201b24;--ink:#f7f0f9;--muted:#c5b7cd;--line:#635569;--link:#ff95cc;--wash:#34202e;--focus:#ffb2da;--glass:rgba(32,27,36,.92)}a{color:var(--link);text-underline-offset:.2em;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}button,select{font:inherit}button,select,summary{min-height:44px}button,select{border:1px solid var(--line);color:var(--ink);background:var(--paper)}button{border-radius:999px;padding:.55em 1em;cursor:pointer;transition:transform .14s ease-out,background .14s}button:hover{background:var(--wash)}button:active{transform:scale(.98)}select{border-radius:8px;width:100%;padding:.75em;max-width:100%}:focus-visible{outline:3px solid var(--focus);outline-offset:4px}::selection{background:var(--pink);color:#171219}body{scrollbar-color:var(--line) var(--bg)}.skip{position:absolute;left:16px;top:-100px;z-index:3;background:var(--paper);padding:12px}.skip:focus{top:10px}.masthead{background:var(--glass);backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1240px;margin:auto;padding:20px 28px}.brand{color:var(--ink);font-weight:750;text-decoration:none;letter-spacing:-.04em;font-size:23px}.brand span{color:var(--pink)}.masthead nav{display:flex;align-items:center;gap:24px}.masthead nav a{font-size:15px}.draft{border-block:1px solid var(--line);background:var(--paper);padding:10px 28px;font-size:14px;text-align:center}.hero{max-width:1184px;margin:0 auto;padding:56px 28px 42px;display:grid;grid-template-columns:1.25fr .75fr;gap:60px;align-items:center}.hero h1{font:400 clamp(2.5rem,5vw,4.25rem)/1.06 Georgia,serif;letter-spacing:-.035em;margin:0 0 22px;text-wrap:balance}.hero p{max-width:48ch;font-size:18px;line-height:1.55;margin:0 0 20px}.meta{color:var(--muted);font-size:14px!important}.hero-art{margin:0;padding:28px 26px;border-radius:16px;background:var(--paper);box-shadow:0 18px 55px -24px #b8468144}.hero-art svg{display:block;width:100%;height:auto;color:var(--ink);max-height:200px}.hero-art figcaption{border-top:1px solid var(--line);margin-top:12px;padding-top:12px;font-size:15px;color:var(--muted)}.hero-art strong{color:var(--ink)}.read-layout{display:grid;grid-template-columns:200px minmax(0,760px);gap:58px;max-width:1120px;margin:0 auto;padding:0 28px 70px}.contents{font-size:14px;align-self:start;border-top:1px solid var(--line);padding-top:22px}.contents strong{display:block;margin-bottom:12px}.contents a{display:block;color:var(--muted);padding:8px 0;text-decoration:none}.contents a:hover{color:var(--link);text-decoration:underline}article{min-width:0}article>p:first-child{font-size:21px;line-height:1.6}article p{margin:0 0 20px}h2{font:400 34px/1.15 Georgia,serif;letter-spacing:-.02em;margin:58px 0 24px;scroll-margin-top:24px;text-wrap:balance}h3{font-size:21px;line-height:1.35;margin:30px 0 14px;letter-spacing:-.01em}li{margin-bottom:12px}ul,ol{padding-left:1.4em}.ref{font-size:.78em;font-weight:600;white-space:nowrap;text-decoration:none}.route-figure{margin:28px 0 36px}.route-heading{font-weight:700;font-size:20px;margin-bottom:18px}.route{border-top:1px solid var(--line);padding:22px 0}.route>strong{font-size:15px;color:var(--link)}.flow{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}.node{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;line-height:1.4;flex:1;min-width:105px;background:var(--paper)}.node small{font-size:13px;color:var(--muted)}.wire{font-size:14px;color:var(--muted)}.arrow{color:var(--link);font-size:20px}.route-figure figcaption,.capacity figcaption,.power-figure figcaption{font-size:14px;line-height:1.5;color:var(--muted);margin-top:16px}.capacity{margin:20px 0 30px}.capacity-row{display:grid;grid-template-columns:1fr 160px;gap:24px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}.capacity-row span{display:block;font-size:15px;color:var(--muted)}.units{display:flex;gap:6px}.units i{height:24px;flex:1;background:var(--pink);border:1px solid var(--link);border-radius:3px}.units i.off{background:transparent;border-style:dashed}.power-figure{margin:25px 0 32px;padding:24px;border-radius:16px;background:var(--wash)}.power-header strong{font-size:22px;display:block}.power-header span{font-size:14px;color:var(--muted)}.power-row{display:grid;grid-template-columns:65px 44px 1fr;align-items:center;gap:10px;margin-top:28px}.port{font-weight:700;font-size:16px}.power-line{height:2px;background:var(--link);position:relative}.power-line:after{content:"";position:absolute;right:0;top:-4px;width:8px;height:8px;border-right:2px solid var(--link);border-top:2px solid var(--link);transform:rotate(45deg)}.power-row strong{font-size:17px}.power-row p{font-size:15px;margin:3px 0 0}.chooser{margin:24px 0 32px;padding:26px;border:1px solid var(--line);border-radius:16px;background:var(--paper)}.chooser h3{margin-top:0}.chooser p{font-size:16px}.chooser label{display:block;font-weight:650;margin:18px 0 8px}.chooser .small{font-size:13px;margin-top:8px;color:var(--muted)}#plan-result{padding-top:16px;margin:18px 0 0;border-top:1px solid var(--line)}select:disabled{opacity:.65}.disclosure{font-size:14px;color:var(--muted);margin-top:28px}.buy-link{display:inline-block;padding:13px 18px;min-height:48px;background:var(--pink);color:#24131d;border-radius:999px;font-weight:700;text-decoration:none;line-height:1.4}.buy-link:hover{box-shadow:0 7px 22px -10px #9d1258aa;text-decoration:underline}details{border-top:1px solid var(--line);padding:14px 0}details:last-of-type{border-bottom:1px solid var(--line)}summary{font-weight:650;cursor:pointer;line-height:1.45;padding:10px 0}details p{margin:12px 0 4px;font-size:16px}.source-list{font-size:15px;overflow-wrap:anywhere}.source-list li{padding-left:4px;margin:12px 0}.footer{border-top:1px solid var(--line);max-width:1184px;margin:0 auto;padding:28px;font-size:14px;color:var(--muted);display:flex;gap:24px;justify-content:space-between}.footer p{margin:0}.ghost-link{display:inline-block;min-height:44px;padding:9px 0;font-weight:600}body:before{content:"";position:absolute;z-index:-1;top:120px;right:0;width:40%;height:380px;background:radial-gradient(ellipse at center,#ff2c9310,transparent 70%);pointer-events:none}@media(max-width:900px){.read-layout{grid-template-columns:1fr;gap:24px;max-width:816px}.contents{display:flex;gap:10px 20px;flex-wrap:wrap}.contents strong{width:100%;margin:0}.contents a{padding:4px 0}.hero{gap:30px}.masthead nav a{display:none}}@media(max-width:620px){body{font-size:16px}.masthead{padding:16px 18px;gap:8px}.brand{font-size:20px}.masthead button{font-size:13px;padding:.6em .8em}.draft{padding:10px 18px;font-size:12px;text-align:left}.hero{display:block;padding:32px 20px 26px}.hero h1{font-size:42px}.hero p{font-size:17px}.hero-art{margin-top:24px;padding:18px}.hero-art svg{max-height:130px}.read-layout{padding:0 20px 44px}article>p:first-child{font-size:18px}h2{font-size:30px;margin-top:42px}h3{font-size:20px}.flow{display:flex;flex-direction:column;align-items:stretch;gap:8px}.flow>.node{font-size:16px}.flow>.arrow{align-self:center;transform:rotate(90deg);height:22px;line-height:22px}.flow>.wire{text-align:center}.capacity-row{grid-template-columns:1fr;gap:8px}.units{max-width:190px}.power-figure,.chooser{padding:20px}.power-row{grid-template-columns:55px 18px 1fr;gap:8px}.power-row strong{font-size:16px}.power-row p{font-size:15px}.footer{display:block;padding:24px 20px}.footer p+p{margin-top:12px}.buy-link{border-radius:12px;font-size:16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}@media(prefers-reduced-transparency:reduce){.masthead{backdrop-filter:none;background:var(--bg)}}@media print{html{color-scheme:light}body{--bg:#fff;--paper:#fff;--ink:#000;--muted:#333;--line:#aaa;--link:#000;--wash:#fff;font-size:11pt}.masthead,.contents,.chooser,.hero-art,.skip{display:none}.hero,.read-layout{display:block;max-width:none;padding:0}.hero h1{font-size:30pt}.draft{margin-bottom:20px}.route,.capacity-row,.power-row,details{break-inside:avoid}h2,h3{break-after:avoid}.footer{padding:15px 0}.buy-link{background:none;border:1px solid #aaa}.source-list{font-size:10pt}.source-list a:after{content:" (" attr(href) ")"}body:before{display:none}}


.editorial-nav{font-size:.9rem;margin:1.5rem 0}
.publication-date{font-size:.85rem}
.editorial-nav a:focus-visible{outline:3px solid #ff57bd;outline-offset:4px}
.nbb-product-photo{margin:1.5rem 0;max-width:560px}
.nbb-product-photo img{display:block;width:100%;height:auto;border-radius:14px;background:#fff}
.nbb-product-photo figcaption{font-size:.8rem;color:var(--muted,#545c4e);margin-top:.4rem}
.nbb-disclosure{font-size:.85rem;color:var(--muted,#545c4e)}