:root{--ink:#23362f;--muted:#70766d;--green:#254a3d;--lime:#dce5be;--paper:#f5f5ef;--line:#dedfd5;--white:#fff;--ochre:#a67c42;--red:#a4533d;--serif:Georgia,'Times New Roman',serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font:14px/1.55 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}button,input,select{font:inherit}button,a,input,select{outline-offset:4px}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #508968}.skip{position:fixed;left:260px;top:-50px;z-index:99;background:var(--green);color:white;padding:12px}.skip:focus{top:10px}.sidebar{position:fixed;inset:0 auto 0 0;width:225px;background:#edefe5;border-right:1px solid var(--line);padding:30px 20px;z-index:30;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;font-size:19px;font-weight:700;letter-spacing:1.6px;line-height:1.1}.brand-symbol{font-family:var(--serif);font-size:42px;letter-spacing:-4px;border:1px solid #254a3d3b;width:48px;height:52px;display:grid;place-items:center;padding-right:7px;border-radius:3px}.brand small{display:block;font-size:10px;font-weight:500;letter-spacing:3px;margin-top:8px}.project-label{font-size:9px;letter-spacing:1.3px;font-weight:700;color:var(--muted);margin:49px 12px 14px}.sidebar nav{display:flex;flex-direction:column;gap:7px}.nav-link{padding:12px;border-radius:6px;display:flex;align-items:center;gap:11px;font-size:13px;font-weight:500;color:#566154;transition:background .15s}.nav-link span{font-size:21px;width:21px;text-align:center;line-height:1}.nav-link.active{background:var(--green);color:var(--white)}.nav-link:not(.active):hover{background:#e2e6d8}.sidebar-bottom{margin-top:auto;padding:30px 12px 0;font-size:11px;color:var(--muted)}.sidebar-bottom small{display:block;line-height:1.7;margin:13px 0 18px;font-size:10px}.sidebar-bottom a{color:var(--green);font-weight:600}.private-dot,.status-dot{width:6px;height:6px;background:#668768;border-radius:50%;display:inline-block;margin-right:6px}.workspace{margin-left:225px}.topbar{height:69px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 35px;gap:15px;background:#f9f9f4}.breadcrumb{font-size:11px;color:var(--muted)}.breadcrumb span{padding:0 12px;color:#bac0b4}.breadcrumb strong{font-weight:500;color:var(--ink)}.topbar-meta{display:flex;align-items:center;font-size:10px;white-space:nowrap}.version-pill{padding:5px 9px;border:1px solid var(--line);border-radius:4px;margin-left:18px;color:var(--muted)}main{padding:31px 35px 0;max-width:1760px;margin:auto}.page{display:none}.page.active{display:block;animation:enter .25s ease}@keyframes enter{from{opacity:.5;transform:translateY(3px)}to{opacity:1;transform:none}}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:23px}.eyebrow,.panel-kicker{font-size:9px;letter-spacing:1.6px;font-weight:700;color:var(--ochre);margin-bottom:8px}h1{font-family:var(--serif);font-size:clamp(27px,2.7vw,43px);font-weight:400;line-height:1.14;letter-spacing:-1.3px;margin:0 0 10px}.page-heading p{font-size:12px;color:var(--muted);margin:0}h2,h3,h4,p{margin-top:0}.button{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:5px;border:1px solid var(--line);font-weight:600;font-size:11px;gap:8px;white-space:nowrap;background:white}.button.primary{background:var(--green);color:white;border-color:var(--green)}.button.quiet{background:transparent}.button:hover{background:#e5e9dc;color:var(--ink)}.button.primary:hover{background:#36634e;color:white}.icon-button{background:none;border:1px solid var(--line);width:35px;height:35px;display:grid;place-items:center;border-radius:4px;font-size:21px}.summary-strip{display:grid;grid-template-columns:.8fr .8fr 1fr 1.4fr;border-block:1px solid var(--line);margin-bottom:22px;padding:14px 0}.summary-strip>div{display:flex;align-items:center;gap:12px;padding:0 21px;border-right:1px solid var(--line)}.summary-strip>div:first-child{padding-left:0}.summary-strip>div:last-child{border:0}.summary-strip b{font-size:28px;line-height:1.2;font-weight:500;letter-spacing:-1px;white-space:nowrap}.summary-strip b small{font-size:14px;letter-spacing:0}.summary-strip span{font-size:10px;line-height:1.45;color:var(--muted);max-width:160px}.model-shell{background:#fafbf5;border:1px solid #d4d8cc;border-radius:9px;overflow:hidden;box-shadow:0 10px 40px #203d3507}.model-toolbar{min-height:53px;padding:10px 15px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line)}.segmented{display:flex;gap:3px;background:#ecefe5;border-radius:4px;padding:3px}.segmented button{border:0;background:none;padding:5px 12px;font-size:10px;color:#788072;border-radius:3px}.segmented button.active{background:white;color:var(--green);box-shadow:0 1px 5px #0000000c;font-weight:600}.model-phase{display:flex;align-items:center;gap:9px;font-size:10px;color:var(--muted)}select{border:1px solid var(--line);background:#fafbf6;color:var(--ink);padding:6px 8px;border-radius:4px;font-size:11px}.model-body{display:flex;min-height:455px}.viewport{position:relative;width:100%;min-width:0;height:clamp(415px,52vh,640px);background:#e8eadf;overflow:hidden}#scene{width:100%;height:100%;display:block;cursor:grab;touch-action:none}#scene:active{cursor:grabbing}.model-panel-hidden .module-panel{display:none}.module-panel{flex:0 0 255px;padding:27px 23px;border-left:1px solid var(--line);background:#fbfcf7;position:relative}.panel-kicker{color:var(--muted);font-size:8px;letter-spacing:1px}.module-panel h2{font-family:var(--serif);font-size:28px;line-height:1.13;font-weight:400;letter-spacing:-.7px;margin:15px 0}.module-panel p{font-size:11px;color:var(--muted);line-height:1.8}.panel-measure{padding:18px 0;border-block:1px solid var(--line);margin:26px 0 20px}.panel-measure strong{font-size:17px;font-weight:500;display:block}.panel-measure span{display:block;font-size:9px;color:var(--muted);margin-top:5px}.mini-legend{display:flex;flex-direction:column;gap:7px;font-size:10px;color:var(--muted);margin-bottom:24px}.key{width:8px;height:8px;display:inline-block;margin-right:7px;border-radius:2px}.key.green{background:#527362}.key.ochre{background:#c8a876}.key.red{background:#ca6247}.text-link{font-size:11px;font-weight:600;color:var(--green)}.text-link:hover{text-decoration:underline}.panel-specs{font-size:10px;display:grid;grid-template-columns:1fr;gap:12px;padding:16px 0;margin:15px 0;border-top:1px solid var(--line)}.panel-specs div{display:flex;justify-content:space-between;gap:12px}.panel-specs dt{color:var(--muted)}.panel-specs dd{margin:0;text-align:right;font-weight:500}.phase-tag{font-size:9px;font-weight:600;letter-spacing:.2px;padding:4px 8px;border-radius:3px;display:inline-block;background:#e4ebdc;color:var(--green)}.phase-tag.future{color:#856339;background:#f2e8d6}.view-note{position:absolute;left:18px;top:16px;font-size:8px;font-weight:600;letter-spacing:1.2px;color:#697560;pointer-events:none}.view-actions{position:absolute;right:15px;bottom:40px;display:flex;flex-direction:column;border-radius:5px;overflow:hidden;box-shadow:0 2px 10px #0000000c}.view-actions button{border:0;border-bottom:1px solid var(--line);width:32px;height:31px;background:#fffffff0;color:var(--green);font-size:19px}.view-instructions{position:absolute;bottom:12px;left:0;right:0;text-align:center;font-size:9px;color:#737e6d;pointer-events:none}.view-instructions span{padding:0 8px}.model-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}.model-label{position:absolute;transform:translate(-50%,-50%);background:#fbfcf5ec;border:1px solid #d0d7c5;box-shadow:0 2px 8px #1e352416;padding:3px 7px;border-radius:4px;font:600 9px/1.3 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#3d5748;white-space:nowrap;cursor:pointer;pointer-events:auto}.model-label.future{border-color:#c8b28c;color:#98743e}.model-label.selected{background:var(--green);color:white;border-color:var(--green)}.model-label.heat{background:#a5523ced;border:0;color:white}.model-layers{display:flex;align-items:center;gap:17px;border-top:1px solid var(--line);padding:12px 17px;flex-wrap:wrap;font-size:10px;min-height:47px}.layer-caption{font-size:8px;letter-spacing:1.1px;font-weight:700;color:var(--muted)}.model-layers label{display:flex;align-items:center;gap:6px;cursor:pointer;color:#55614f}.model-layers input{accent-color:var(--green);width:12px;height:12px;margin:0}.text-button{border:0;background:transparent;color:var(--green);font-size:10px;padding:0;margin-left:auto}.text-button[aria-pressed="true"]{font-weight:700;text-decoration:underline}.model-footnote{display:flex;align-items:start;justify-content:space-between;gap:25px;font-size:9px;color:var(--muted);padding:13px 0}.model-footnote a{white-space:nowrap;color:var(--green)}.module-chips{display:flex;gap:7px;flex-wrap:wrap;padding-top:6px}.module-chip{background:transparent;border:1px solid var(--line);font-size:10px;color:var(--muted);padding:6px 10px;border-radius:4px}.module-chip:hover,.module-chip.selected{background:var(--green);border-color:var(--green);color:white}.loading-overlay{position:absolute;inset:0;display:grid;place-items:center;background:#f0efe9;z-index:5}.loading-overlay img{width:100%;height:100%;object-fit:contain;opacity:.6;position:absolute}.loading-overlay>div{position:relative;background:#fafbf2ee;padding:14px 20px;border:1px solid #d6dccb;display:flex;align-items:center;gap:12px;font-size:11px}.loader{width:15px;height:15px;border:2px solid #cbd5bf;border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.hidden{display:none!important}.site-footer{margin-top:39px;border-top:1px solid var(--line);padding:20px 0 25px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:9px;color:#858c7f}.site-footer span:first-child{font-weight:600;letter-spacing:1px;color:#59715c}.editorial-hero{display:grid;grid-template-columns:1.25fr .8fr;gap:34px;align-items:center;margin:12px 0 32px}.editorial-hero img{width:100%;border-radius:7px}.editorial-hero h2{font:400 35px/1.16 var(--serif);letter-spacing:-1px}.editorial-hero p{font-size:12px;line-height:1.9;color:var(--muted)}.section-title{display:flex;align-items:center;justify-content:space-between;margin:32px 0 16px}.section-title h2{font-size:18px;font-weight:500;margin:0}.section-title span{font-size:10px;color:var(--muted)}.program-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.program-item{border:1px solid var(--line);border-radius:6px;background:#fafbf6;padding:21px}.program-item .number{font:400 34px var(--serif);color:#92a67c;margin-bottom:12px}.program-item h3{font-size:15px;font-weight:600}.program-item p{font-size:11px;color:var(--muted);line-height:1.8;margin-bottom:15px}.program-item .text-link{border:0;background:none;padding:0;cursor:pointer}.gallery-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.gallery-pair img{width:100%;height:260px;object-fit:cover;border-radius:6px}.gallery-pair figcaption{font-size:10px;color:var(--muted);margin-top:9px}.gallery-pair figure{margin:0}.info-band{padding:23px 26px;border:1px solid var(--line);background:#ecefe3;border-radius:6px;display:flex;gap:20px;justify-content:space-between;align-items:center;margin-top:24px}.info-band p{font-size:12px;color:var(--muted);margin:5px 0 0}.info-band h3{margin:0;font-size:16px}.phase-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.phase-card{background:#fafbf6;border:1px solid var(--line);padding:29px;border-radius:7px}.phase-card.current{background:#e8edde;border-color:#c7d1b9}.phase-card h2{font:400 29px var(--serif);margin:12px 0 17px}.clean-list{padding-left:17px;line-height:1.8;font-size:12px;color:#66705e}.clean-list li{padding:5px 0}.phase-card p{font-size:11px;color:var(--muted)}.change-log{border-top:1px solid var(--line)}.change-row{display:grid;grid-template-columns:36px 240px 1fr;gap:17px;padding:20px 0;border-bottom:1px solid var(--line);align-items:start}.change-row>span{font-size:10px;color:var(--ochre);margin-top:2px}.change-row h3{font-weight:500;font-size:13px;margin:0}.change-row p{font-size:11px;color:var(--muted);margin:0}.pending-table,.data-table{width:100%;border-collapse:collapse;font-size:11px}.pending-table th,.data-table th{text-align:left;background:#e9eddf;color:#40583f;padding:10px 12px;font-size:10px;font-weight:600;white-space:normal}.pending-table td,.data-table td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.6}.pending-table tr:nth-child(2n),.data-table tr:nth-child(2n){background:#f0f2e9}.table-wrap{overflow:auto}.power-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}.power-target{background:var(--green);color:#eff2e3;padding:30px;border-radius:7px;display:flex;align-items:center;gap:28px}.power-target .big-number{font:400 85px/1 var(--serif);letter-spacing:-3px;white-space:nowrap}.power-target .big-number small{font:400 25px sans-serif;letter-spacing:0}.power-target h2{font-size:14px;font-weight:500;margin-bottom:9px}.power-target p{font-size:11px;color:#c7d5bd;margin:0;line-height:1.7}.power-comparison{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:7px;overflow:hidden}.power-comparison div{background:#fbfcf6;padding:23px 18px}.power-comparison b{font-size:26px;font-weight:500;letter-spacing:-1px;display:block;margin:7px 0}.power-comparison small{font-size:9px;line-height:1.6;color:var(--muted);display:block}.calculator{margin-top:24px;padding:28px;background:#fff;border:1px solid var(--line);border-radius:7px}.calc-heading{display:flex;justify-content:space-between;gap:22px}.calc-heading h2{font:400 26px var(--serif);margin:0 0 7px}.calc-heading p{font-size:11px;color:var(--muted)}.calc-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;margin:19px 0}.range-top{display:flex;justify-content:space-between;align-items:center;font-size:11px}.range-top output{font-size:24px;color:var(--green)}input[type="range"]{width:100%;accent-color:var(--green);margin:14px 0}.range-ends{display:flex;justify-content:space-between;font-size:9px;color:var(--muted)}.calc-result{display:flex;gap:23px;align-items:center;padding-left:30px;border-left:1px solid var(--line)}.calc-result b{font:400 65px/1 var(--serif);color:var(--green)}.calc-result span{font-size:12px;display:block}.calc-result small{font-size:10px;display:block;color:var(--muted);margin-top:7px}.power-bar{display:flex;height:26px;border-radius:4px;overflow:hidden;background:#efeee7;margin-top:20px}.power-bar span{height:100%;transition:width .15s ease}.power-bar .base{background:#537a63}.power-bar .heat{background:#c3a276}.power-bar .margin{background:#dfe8c6}.bar-legend{display:flex;gap:20px;font-size:10px;margin-top:9px;flex-wrap:wrap;color:var(--muted)}.calc-note{font-size:10px;line-height:1.8;color:var(--muted);margin-top:18px;margin-bottom:0}.calc-warning{color:var(--red);font-size:11px;margin-top:14px}.heating-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.heating-card{border:1px solid var(--line);padding:21px;border-radius:5px;background:#fbfcf6}.heating-card span{font-size:11px;color:var(--muted)}.heating-card strong{font-size:29px;font-weight:500;display:block;margin:10px 0}.heating-card small{font-size:10px;color:var(--muted)}.board-filter{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:16px}.board-filter button{border:1px solid var(--line);border-radius:4px;background:transparent;padding:6px 11px;font-size:10px;color:var(--muted)}.board-filter button.active{background:var(--green);color:white;border-color:var(--green)}.circuit-table{max-height:540px;overflow:auto;border:1px solid var(--line);border-radius:5px}.circuit-table thead{position:sticky;top:0}.technical-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:27px}.chapter-nav{align-self:start;position:sticky;top:20px;max-height:80vh;overflow:auto}.search-box{display:flex;align-items:center;gap:9px;background:#fbfcf6;border:1px solid var(--line);border-radius:5px;padding:9px 12px;margin-bottom:15px}.search-box input{min-width:0;width:100%;border:0;background:none;outline:0;font-size:11px;color:var(--ink)}.search-box span{font-size:19px;line-height:1}.chapter-nav nav{display:flex;flex-direction:column;gap:3px}.chapter-nav button{border:0;border-left:2px solid transparent;background:none;text-align:left;padding:10px 9px;font-size:11px;color:var(--muted);line-height:1.45;display:flex;gap:9px;width:100%}.chapter-nav button small{font-size:9px;margin-top:2px;color:#8a957f}.chapter-nav button.active{border-left-color:var(--green);background:#e8eddf;color:var(--green)}.technical-article{background:#fff;border:1px solid var(--line);border-radius:6px;padding:32px 34px;min-height:500px}.technical-article>h2{font:400 31px/1.2 var(--serif);letter-spacing:-.7px;margin:12px 0}.technical-article>.subtitle{font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:22px}.technical-article h3{font-size:11px;letter-spacing:.5px;font-weight:700;color:var(--green);margin:29px 0 10px}.technical-article p{font-size:12px;line-height:1.85;color:#596351}.technical-article table{margin:20px 0}.technical-article a{color:#547959;text-decoration:underline}.article-origin{font-size:10px;color:var(--muted);margin-top:30px;padding-top:15px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px}.doc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.doc-card{background:#fafbf6;border:1px solid var(--line);padding:24px;border-radius:6px}.doc-card .doc-mark{font:400 40px var(--serif);color:#9dac8a}.doc-card h2{font-size:17px;font-weight:500;margin:12px 0}.doc-card p{font-size:11px;color:var(--muted)}.doc-card footer{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:23px}.doc-card small{font-size:9px;color:var(--muted)}.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}.plan-card{padding:0;background:#fafbf6;text-align:left;border:1px solid var(--line);border-radius:5px;overflow:hidden;transition:transform .2s}.plan-card:hover{transform:translateY(-3px);box-shadow:0 5px 20px #00000008}.plan-card img{width:100%;aspect-ratio:1.414;object-fit:contain;background:white;display:block;border-bottom:1px solid var(--line)}.plan-card>div{padding:13px 15px}.plan-card small{font-size:9px;color:var(--ochre)}.plan-card h3{font-size:12px;font-weight:500;margin:6px 0;line-height:1.5}.documents-note{font-size:11px;color:var(--muted);line-height:1.8;background:#e9eddf;padding:20px 23px;border-radius:5px;margin:22px 0}.document-search-results{margin-bottom:20px}.search-result{display:block;background:white;border:1px solid var(--line);border-radius:4px;padding:15px 18px;margin:8px 0}.search-result strong{font-size:11px}.search-result p{font-size:11px;color:var(--muted);margin:5px 0 0}.empty{padding:30px;color:var(--muted);font-size:12px}.loading-text{padding:35px;color:var(--muted)}dialog{border:0;border-radius:9px;padding:0;max-width:1200px;width:94vw;max-height:95vh;color:var(--ink);box-shadow:0 25px 100px #0007}dialog::backdrop{background:#10271ed9;backdrop-filter:blur(3px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 24px;border-bottom:1px solid var(--line)}.dialog-header small{font-size:9px;color:var(--ochre);letter-spacing:1px}.dialog-header h2{font-size:18px;margin:5px 0 0;font-weight:500}.plan-image-wrap{overflow:auto;max-height:70vh;background:#e7eade;padding:12px}.plan-image-wrap img{display:block;width:100%;height:auto}.dialog-bottom{padding:14px 24px;display:flex;justify-content:space-between;gap:15px}.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(100px);z-index:100;padding:13px 20px;background:var(--green);color:white;border-radius:6px;font-size:12px;box-shadow:0 4px 25px #0003;transition:transform .2s}.toast.visible{transform:translateX(-50%) translateY(0)}.mobile-only{display:none}.noscript{position:fixed;bottom:0;background:#fff4da;padding:20px;z-index:100;width:100%;margin:0}#model-shell:fullscreen{background:#fafbf5;display:flex;flex-direction:column}#model-shell:fullscreen .model-body{flex:1}#model-shell:fullscreen .viewport{height:100%}#model-shell:fullscreen .model-layers{flex-shrink:0}
@media(min-width:1600px){.module-panel{flex-basis:290px}.viewport{height:61vh}.model-body{min-height:530px}}
@media(max-width:1200px){.sidebar{width:200px;padding-inline:15px}.workspace{margin-left:200px}main{padding:25px 23px 0}.topbar{padding-inline:23px}.module-panel{flex-basis:220px;padding:22px 18px}.module-panel h2{font-size:25px}.model-layers{gap:12px}.summary-strip>div{padding-inline:13px;gap:8px}.power-target{gap:18px;padding:25px}.power-target .big-number{font-size:68px}.program-grid{grid-template-columns:repeat(2,1fr)}.technical-layout{grid-template-columns:210px minmax(0,1fr)}.technical-article{padding:25px}.plan-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:1000px){.sidebar{width:76px;padding:20px 12px}.brand>span:last-child,.project-label,.sidebar-bottom{display:none}.brand-symbol{width:50px}.sidebar nav{margin-top:30px;gap:12px}.nav-link{font-size:0;padding:12px;justify-content:center}.nav-link span{font-size:24px}.workspace{margin-left:76px}.summary-strip>div{display:block}.summary-strip span{display:block;margin-top:4px}.module-panel{flex-basis:215px}.power-hero{grid-template-columns:1fr}.doc-grid{gap:12px}.doc-card{padding:19px}.doc-card footer{flex-wrap:wrap}.topbar-meta{font-size:0}.version-pill{font-size:10px}.editorial-hero{gap:23px}.editorial-hero h2{font-size:29px}.change-row{grid-template-columns:24px 200px 1fr;gap:12px}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);width:245px;padding:27px 20px;transition:transform .2s;box-shadow:10px 0 60px #0002}.sidebar.open{transform:none}.brand>span:last-child,.project-label,.sidebar-bottom{display:block}.sidebar nav{margin-top:0;gap:7px}.nav-link{font-size:13px;justify-content:start}.nav-link span{font-size:22px}.workspace{margin-left:0}.mobile-only{display:grid}.topbar{height:59px;padding:0 17px}.breadcrumb{margin-right:auto;font-size:10px}.breadcrumb span{padding:0 5px}.topbar-meta{display:none}main{padding:25px 17px 0}.page-heading{align-items:start;gap:12px}.page-heading h1{font-size:31px;letter-spacing:-1px}.page-heading p{font-size:11px;line-height:1.6}.page-heading>.button{font-size:0;padding:8px;width:34px;overflow:hidden}.page-heading>.button:after{content:'↗';font-size:15px}h1{max-width:500px}.summary-strip{grid-template-columns:1fr 1fr;row-gap:16px;padding:17px 0}.summary-strip>div{border:0;display:flex;padding:0 12px}.summary-strip>div:nth-child(3){padding-left:0}.summary-strip>div:nth-child(2n){border-left:1px solid var(--line)}.summary-strip span{max-width:104px;margin-top:0;font-size:9px}.summary-strip b{font-size:28px}.model-toolbar{flex-wrap:wrap;padding:9px 10px;gap:9px}.segmented{width:100%;justify-content:space-between}.segmented button{flex:1;padding:6px 8px;font-size:10px}.model-phase{margin-left:auto}.model-body{display:block;min-height:0}.viewport{height:410px}.module-panel{border-left:0;border-top:1px solid var(--line);padding:20px;min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.module-panel h2{grid-column:1/-1;margin:7px 0 10px;font-size:25px}.module-panel .panel-kicker{grid-column:1/-1}.module-panel>p{grid-column:1/-1;font-size:11px;line-height:1.7;margin:0 0 12px}.module-panel .panel-measure{margin:0;padding:10px 0;border-bottom:0}.module-panel .mini-legend{margin:10px 0}.module-panel .text-link{align-self:center}.module-panel .panel-specs{grid-column:1/-1;margin:0 0 10px;padding:12px 0;grid-template-columns:1fr 1fr}.module-panel .phase-tag{justify-self:start;grid-column:1/-1;margin:6px 0}.model-layers{gap:12px;font-size:10px;padding:14px}.layer-caption{width:100%}.text-button{margin-left:0}.model-footnote{display:block;font-size:9px}.model-footnote a{display:block;margin-top:7px}.view-instructions{font-size:8px}.view-instructions span{padding:0 3px}.editorial-hero{grid-template-columns:1fr;gap:24px}.editorial-hero img{order:0}.editorial-hero h2{font-size:31px}.program-grid{gap:11px}.program-item{padding:18px}.gallery-pair{grid-template-columns:1fr}.gallery-pair img{height:auto}.info-band{align-items:start;flex-direction:column;gap:15px;padding:21px}.phase-columns{grid-template-columns:1fr;gap:15px}.phase-card{padding:23px}.change-row{grid-template-columns:24px 1fr}.change-row p{grid-column:2}.power-target{padding:25px 20px;gap:25px}.power-target .big-number{font-size:67px}.power-comparison div{padding:18px}.calculator{padding:21px}.calc-grid{grid-template-columns:1fr;gap:26px}.calc-result{padding:0;border:0}.calc-heading{display:block}.calc-heading h2{font-size:24px}.heating-cards{grid-template-columns:1fr 1fr;gap:10px}.heating-card{padding:16px}.technical-layout{grid-template-columns:1fr;gap:15px}.chapter-nav{position:static;max-height:none}.chapter-nav nav{max-height:190px;overflow:auto;border-bottom:1px solid var(--line)}.technical-article{padding:23px 18px}.technical-article>h2{font-size:27px}.doc-grid{grid-template-columns:1fr}.doc-card{display:grid;grid-template-columns:45px 1fr;gap:0 15px;padding:20px}.doc-card h2{margin:0}.doc-card .doc-mark{grid-row:1/4}.doc-card p{margin:6px 0}.doc-card footer{margin:10px 0 0}.plan-grid{gap:11px}.plan-card>div{padding:10px}.plan-card h3{font-size:10px}.site-footer{gap:9px;flex-direction:column;font-size:8px}.dialog-header{padding:13px 16px}.dialog-header h2{font-size:14px}.dialog-bottom{padding:13px;gap:7px}.dialog-bottom .button{font-size:9px;padding:8px}.plan-image-wrap{padding:3px}.plan-image-wrap img{min-width:750px}#model-shell:fullscreen .module-panel{display:none}#model-shell:fullscreen .model-body{height:calc(100% - 175px)}#model-shell:fullscreen .viewport{height:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* Official supplied identity; the full project name remains visible at narrow widths. */
.brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}.brand-logo{width:132px;height:auto;display:block}.brand-project{font-size:13px;line-height:1.5;letter-spacing:0;white-space:normal}.breadcrumb{white-space:normal;line-height:1.4}.sidebar-bottom{line-height:1.5}.modular-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:22px 0}.module-power-card{border:1px solid var(--line,#dfe3d7);padding:20px;border-radius:8px}.module-power-card h3{margin:0 0 8px}.module-power-card p{font-size:13px;line-height:1.6;margin:8px 0}.module-power-card small{color:#626c5e}@media(max-width:900px){.modular-summary{grid-template-columns:1fr 1fr}.topbar-meta{display:none}.breadcrumb{font-size:11px}}@media(max-width:560px){.modular-summary{grid-template-columns:1fr}}

.brand-logo{max-width:100%}.sidebar{overflow-y:auto;overflow-x:hidden}