@charset "UTF-8";
:root{
  --red:#ef312f;--red-dark:#c91f1d;--red-soft:#fff0ef;--ink:#11151d;--ink-2:#242b37;
  --muted:#727b8b;--line:#dfe4ec;--surface:#fff;--surface-2:#f5f7fa;--surface-3:#edf1f6;
  --green:#2e9b5e;--green-soft:#eaf8f0;--amber:#e99723;--blue:#4aa7df;
  --shadow-sm:0 10px 30px rgba(23,31,45,.08);--shadow-md:0 22px 70px rgba(23,31,45,.13);
  --radius-sm:14px;--radius-md:22px;--radius-lg:32px;--container:min(1440px,calc(100vw - 48px));
  --header-h:76px;--ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 22px);background:#f2f5f8}
body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:
  radial-gradient(circle at 90% 7%,rgba(239,49,47,.09),transparent 28%),
  radial-gradient(circle at 8% 34%,rgba(72,166,223,.08),transparent 25%),#f6f8fb;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button,input,select,textarea{font:inherit}
button,a{touch-action:manipulation}
button{cursor:pointer}
img{max-width:100%;display:block}
a{color:inherit}
[hidden],.is-hidden{display:none!important}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:#111;color:#fff;padding:12px 16px;border-radius:10px;text-decoration:none}
.skip-link:focus{top:16px}
:focus-visible{outline:3px solid rgba(239,49,47,.33);outline-offset:3px}
.pilot-banner{min-height:34px;display:flex;align-items:center;justify-content:center;gap:9px;padding:7px 16px;background:#1a202b;color:#dbe1ea;font-size:12px;font-weight:700;letter-spacing:.01em}
.pilot-banner a{color:#fff;text-underline-offset:3px}
.pilot-dot{width:8px;height:8px;border-radius:50%;background:#ffb447;box-shadow:0 0 0 5px rgba(255,180,71,.13)}
.site-header{height:var(--header-h);position:sticky;top:0;z-index:100;background:rgba(249,250,252,.88);backdrop-filter:blur(20px);border-bottom:1px solid rgba(191,198,209,.58)}
.header-inner{width:var(--container);height:100%;margin:auto;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;min-width:270px}
.brand img{width:155px;max-height:45px;object-fit:contain;object-position:left center}
.brand-divider{height:36px;width:1px;background:#cfd5df}
.brand-product{display:grid;gap:2px;line-height:1}
.brand-product strong{font-size:15px;letter-spacing:.08em}
.brand-product small{font-size:9px;color:var(--muted);white-space:nowrap}
.main-nav{display:flex;align-items:center;margin-left:auto;background:#edf1f5;border:1px solid #dde2e9;padding:5px;border-radius:16px}
.main-nav a{padding:10px 16px;border-radius:11px;text-decoration:none;color:#5f6878;font-size:13px;font-weight:800;transition:.2s var(--ease)}
.main-nav a:hover{background:#fff;color:var(--ink);box-shadow:0 3px 12px rgba(20,27,39,.08)}
.header-actions{display:flex;align-items:center;gap:10px}
.locale-switch{display:flex;background:#e9edf2;border-radius:13px;padding:4px}
.locale-switch a{padding:9px 10px;border-radius:9px;text-decoration:none;font-size:12px;font-weight:900;color:#737c89}
.locale-switch a.active{background:#151922;color:#fff;box-shadow:0 4px 14px rgba(20,24,34,.2)}
.btn{min-height:44px;border:1px solid transparent;border-radius:14px;padding:11px 18px;display:inline-flex;align-items:center;justify-content:center;gap:9px;text-decoration:none;font-weight:850;line-height:1.1;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,#f04441,#df2624);color:#fff;box-shadow:0 13px 28px rgba(239,49,47,.24)}
.btn-primary:hover{box-shadow:0 16px 32px rgba(239,49,47,.32)}
.btn-dark{background:#151922;color:#fff;box-shadow:0 10px 25px rgba(18,22,30,.16)}
.btn-light{background:#fff;color:#171b23;box-shadow:var(--shadow-sm)}
.btn-ghost{background:#fff;color:#1b2029;border-color:#dfe4ec}
.btn-outline-dark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.17);color:#fff}
.btn-large{min-height:54px;padding:15px 22px;border-radius:16px}
.menu-toggle{display:none;width:44px;height:44px;border:0;border-radius:13px;background:#161a22}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;margin:4px auto}
.mobile-menu{position:absolute;left:0;right:0;top:100%;padding:16px 24px 24px;background:rgba(249,250,252,.98);border-bottom:1px solid var(--line);box-shadow:var(--shadow-md)}
.mobile-menu a{display:block;padding:14px 10px;border-bottom:1px solid var(--line);text-decoration:none;font-weight:850}
.screen-section{min-height:calc(100svh - var(--header-h));scroll-snap-align:start}
.hero-section{padding:34px 0 48px;display:grid;align-items:center;overflow:hidden}
.hero-grid{width:var(--container);margin:auto;display:grid;grid-template-columns:minmax(380px,.78fr) minmax(620px,1.22fr);gap:30px;align-items:center}
.hero-copy{padding:18px 10px 18px 4px}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--red);font-size:12px;font-weight:950;letter-spacing:.11em;text-transform:uppercase}
.eyebrow>span{width:24px;height:3px;border-radius:3px;background:var(--red)}
.eyebrow.light{color:#fff}.eyebrow.light>span{background:#fff}
.hero-copy h1{font-size:clamp(48px,5vw,84px);line-height:.96;letter-spacing:-.055em;max-width:720px;margin:20px 0 22px}
.hero-lead{max-width:650px;font-size:19px;line-height:1.55;color:#646e7e;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:28px}
.trust-row span{display:grid;gap:6px;padding:14px 13px;border:1px solid rgba(206,212,222,.9);background:rgba(255,255,255,.62);border-radius:15px;color:#596374;font-size:12px;line-height:1.3}
.trust-row i{font-style:normal;font-weight:950;color:var(--red);font-size:11px}
.how-inline{margin-top:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.how-inline div{display:flex;align-items:center;gap:9px;padding:10px 12px;border-radius:13px;background:#fff;box-shadow:0 8px 20px rgba(24,31,44,.06);font-size:12px;font-weight:780}
.how-inline b{color:var(--red)}
.hero-lab{position:relative;padding:22px;border-radius:var(--radius-lg);background:
  radial-gradient(circle at 85% 0,rgba(239,49,47,.18),transparent 30%),
  linear-gradient(145deg,rgba(255,255,255,.94),rgba(245,248,252,.9));
  border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow-md);overflow:hidden}
.hero-lab:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(31,43,62,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(31,43,62,.025) 1px,transparent 1px);background-size:32px 32px;pointer-events:none}
.lab-head{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:14px}
.lab-kicker{color:var(--red);font-size:11px;font-weight:950;letter-spacing:.12em}
.lab-head h2{font-size:24px;letter-spacing:-.03em;margin:5px 0 0}
.scenario-tabs{display:flex;padding:5px;background:rgba(235,239,245,.92);border:1px solid #d9dfe8;border-radius:15px}
.scenario-tab{height:42px;border:0;padding:0 14px;background:transparent;color:#697282;border-radius:11px;font-size:12px;font-weight:900;transition:.2s var(--ease)}
.scenario-tab.active{background:var(--red);color:#fff;box-shadow:0 8px 18px rgba(239,49,47,.23)}
.energy-stage{position:relative;border-radius:26px;overflow:hidden;background:#e7edf4;min-height:430px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.9)}
.energy-svg{width:100%;height:auto;display:block;min-height:430px}
.svg-temp{font-size:44px;font-weight:900;fill:#fff}.svg-temp.warm{fill:#8e5422}
.svg-label{font-size:15px;font-weight:800;fill:#fff}.svg-label.warm{fill:#8e5422}
.compare-divider{stroke:#fff;stroke-width:4;filter:drop-shadow(0 4px 12px rgba(15,22,31,.2))}
.compare-knob{fill:#fff;stroke:#ef312f;stroke-width:8;filter:drop-shadow(0 7px 16px rgba(31,37,48,.2))}
.cold-flow path,.akfa-effects path,.stage-room>path{stroke-linecap:round;animation:flow 4.4s linear infinite;stroke-dasharray:34 28}
.stage-room>path{animation-direction:reverse}
@keyframes flow{to{stroke-dashoffset:-124}}
.score-card,.saving-card{position:absolute;z-index:3;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.95);box-shadow:0 16px 36px rgba(27,35,49,.14)}
.score-card{left:24px;bottom:68px;width:180px;padding:18px;border-radius:22px}
.score-card small{display:block;font-size:9px;color:#697587;font-weight:950;letter-spacing:.06em;margin-bottom:8px}
.score-card strong{font-size:42px;letter-spacing:-.04em}.score-card span{color:#7f8999;font-size:13px;font-weight:850}
.score-card meter{width:100%;height:10px;margin-top:8px;accent-color:var(--green)}
.saving-card{right:22px;bottom:73px;display:flex;align-items:center;gap:12px;border-radius:20px;padding:14px 16px}
.saving-card .saving-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--green-soft);color:var(--green);font-size:20px}
.saving-card div{display:grid}.saving-card small{color:#7c8695;font-size:9px;font-weight:800}.saving-card strong{color:var(--green);font-size:25px}
.stage-message{position:absolute;left:215px;right:205px;bottom:75px;min-height:70px;display:flex;align-items:center;padding:14px 18px;background:rgba(255,255,255,.91);border-radius:18px;font-size:13px;font-weight:780;line-height:1.45;box-shadow:0 12px 30px rgba(32,40,53,.1)}
.compare-control{position:relative;z-index:2;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:18px 6px 12px;color:#697283;font-size:12px;font-weight:850}
.compare-control input{width:100%;accent-color:var(--red)}
.season-row{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:11px 12px;border-radius:17px;background:rgba(255,255,255,.75);border:1px solid rgba(218,224,233,.8)}
.season-switch{display:flex;gap:6px}.season-btn{border:0;background:transparent;padding:11px 15px;border-radius:11px;color:#747d8d;font-weight:850}.season-btn.active{background:#fff;color:#141820;box-shadow:0 6px 16px rgba(25,32,45,.1)}
.season-row p{margin:0;color:#6e7787;font-size:12px;max-width:430px}
.catalog-section{padding:34px 0 50px;display:grid;align-items:center}
.section-heading{width:var(--container);margin:0 auto 18px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.section-heading h2{font-size:clamp(34px,4vw,58px);line-height:1.03;letter-spacing:-.045em;margin:12px 0 8px}
.section-heading p{color:var(--muted);margin:0;line-height:1.55;max-width:800px}
.catalog-count{min-width:220px;padding:18px 20px;border-radius:20px;background:linear-gradient(135deg,#f14a46,#c92422);color:#fff;display:flex;align-items:center;gap:14px;box-shadow:0 16px 38px rgba(239,49,47,.25)}
.catalog-count strong{font-size:40px}.catalog-count span{font-size:12px;max-width:120px;line-height:1.3;font-weight:750}
.catalog-studio{width:var(--container);margin:auto;display:grid;grid-template-columns:390px 1fr;gap:18px;background:rgba(255,255,255,.76);border:1px solid rgba(255,255,255,.95);border-radius:30px;padding:14px;box-shadow:var(--shadow-md);min-height:610px}
.featured-system{position:relative;overflow:hidden;border-radius:24px;padding:24px;background:
  radial-gradient(circle at 78% 10%,rgba(239,49,47,.35),transparent 30%),
  linear-gradient(160deg,#161a23,#263043);color:#fff;display:flex;flex-direction:column}
.featured-system:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 0 45%,rgba(255,255,255,.06) 50%,transparent 55%);animation:lightSweep 8s infinite}
@keyframes lightSweep{0%,65%{transform:translateX(-100%)}90%,100%{transform:translateX(100%)}}
.featured-tag{font-size:9px;letter-spacing:.12em;color:#c7d0de;font-weight:900;position:relative;z-index:2}
.featured-visual{height:210px;position:relative;margin:-3px -5px 10px;display:grid;place-items:center}
.featured-visual img{height:220px;object-fit:contain;filter:drop-shadow(0 24px 28px rgba(0,0,0,.3));position:relative;z-index:2}
.featured-flow{position:absolute;height:2px;width:160px;border-radius:4px;filter:blur(.3px);animation:featuredFlow 3.2s linear infinite}
.featured-flow-hot{left:0;top:90px;background:linear-gradient(90deg,transparent,#ffb15f)}
.featured-flow-cold{right:0;top:135px;background:linear-gradient(90deg,#5dc9ff,transparent);animation-direction:reverse}
@keyframes featuredFlow{50%{transform:translateX(32px);opacity:.35}}
.featured-system>span{color:#ffaaa7;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.05em}
.featured-system h3{font-size:34px;line-height:1;letter-spacing:-.04em;margin:7px 0 10px;position:relative;z-index:2}
.featured-system p{color:#b7c0ce;font-size:13px;line-height:1.55;margin:0 0 18px;min-height:61px}
.featured-specs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:auto 0 16px}
.featured-specs div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);padding:11px;border-radius:13px}.featured-specs dt{font-size:8px;color:#98a5b7;text-transform:uppercase;font-weight:850}.featured-specs dd{margin:5px 0 0;font-size:13px;font-weight:900}
.featured-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:relative;z-index:2}
.catalog-workspace{display:flex;flex-direction:column;min-width:0;background:#fff;border-radius:24px;padding:16px}
.catalog-toolbar{display:grid;grid-template-columns:minmax(0,1fr) minmax(200px,300px) auto;gap:12px;align-items:center;padding-bottom:14px;border-bottom:1px solid var(--line)}
.filter-group{display:flex;flex-wrap:wrap;gap:6px}
.filter-chip{border:1px solid #dde3eb;background:#f4f6f9;color:#697383;border-radius:11px;padding:10px 13px;font-size:11px;font-weight:850}.filter-chip.active{background:var(--red);border-color:var(--red);color:#fff}
.search-field{height:42px;display:flex;align-items:center;gap:8px;padding:0 13px;border:1px solid #dfe4ec;border-radius:12px;background:#fff}.search-field input{border:0;outline:0;width:100%;min-width:0}.search-field span{color:#7b8492}
.compare-button{white-space:nowrap}.compare-button span{display:grid;place-items:center;min-width:24px;height:24px;border-radius:8px;background:#edf1f5;color:#555f70}
.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding:14px 4px 4px;overflow:auto;max-height:520px;overscroll-behavior:contain}
.product-card{position:relative;border:1px solid #e0e5ed;border-radius:18px;padding:13px;background:linear-gradient(145deg,#fff,#f7f9fb);display:grid;grid-template-columns:80px 1fr;gap:12px;min-height:166px;transition:.2s var(--ease)}
.product-card:hover,.product-card.selected{border-color:rgba(239,49,47,.6);box-shadow:0 14px 28px rgba(25,33,47,.09);transform:translateY(-2px)}
.product-card.selected:after{content:"✓";position:absolute;right:10px;top:10px;width:22px;height:22px;border-radius:8px;background:var(--red);color:#fff;display:grid;place-items:center;font-size:11px;font-weight:900}
.product-card img{width:78px;height:105px;object-fit:contain;filter:drop-shadow(0 8px 9px rgba(27,34,47,.16))}
.product-card-content{min-width:0;display:flex;flex-direction:column}
.product-card small{font-size:8px;color:#8a94a4;text-transform:uppercase;font-weight:850;letter-spacing:.04em}
.product-card h3{font-size:16px;line-height:1.05;margin:5px 28px 6px 0;letter-spacing:-.02em}
.product-card p{font-size:10px;color:#788291;line-height:1.35;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-card-specs{display:flex;gap:6px;margin-top:auto;padding-top:9px}.product-card-specs span{padding:6px 7px;border-radius:8px;background:#edf1f5;color:#5b6574;font-size:9px;font-weight:800}
.product-card-actions{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.product-card-actions button{border:0;background:transparent;padding:4px;color:#333b49;font-size:10px;font-weight:900}.product-card-actions label{display:flex;align-items:center;gap:5px;font-size:9px;color:#6e7785}.product-card-actions input{accent-color:var(--red)}
.calculator-section{padding:56px 0 70px;min-height:100vh}
.calculator-heading{align-items:center}.calculator-heading>p{max-width:500px}
.calculator-shell{width:var(--container);margin:auto;background:#fff;border:1px solid rgba(255,255,255,.95);border-radius:30px;box-shadow:var(--shadow-md);overflow:hidden}
.wizard-topbar{min-height:74px;display:grid;grid-template-columns:220px 1fr 260px;align-items:center;gap:20px;padding:12px 18px;border-bottom:1px solid var(--line);background:#fbfcfd}
.wizard-progress-copy{display:flex;align-items:center;gap:11px}.wizard-progress-copy span{width:48px;height:48px;border-radius:15px;background:#1b2029;color:#fff;display:grid;place-items:center;font-size:12px;font-weight:900}.wizard-progress-copy strong{font-size:14px}
.wizard-topbar progress{width:100%;height:8px;accent-color:var(--red)}
.save-status{justify-self:end;display:flex;align-items:center;gap:8px;background:var(--green-soft);color:#3e7454;padding:11px 13px;border-radius:12px;font-size:10px;font-weight:800}.save-status>span{width:8px;height:8px;background:#4fb87a;border-radius:50%;box-shadow:0 0 0 5px rgba(79,184,122,.12)}
.wizard-layout{display:grid;grid-template-columns:210px minmax(0,1fr) 330px;min-height:690px}
.step-nav{padding:18px 14px;background:linear-gradient(180deg,#231a20,#151b25);display:flex;flex-direction:column;gap:7px}
.step-nav-item{border:1px solid transparent;background:transparent;color:#727b8b;border-radius:14px;padding:11px;display:flex;align-items:center;gap:10px;text-align:left}
.step-nav-item span{width:32px;height:32px;border-radius:10px;background:rgba(255,255,255,.06);display:grid;place-items:center;font-size:9px;font-weight:900}.step-nav-item b{font-size:11px}
.step-nav-item.active{color:#fff;background:rgba(239,49,47,.17);border-color:rgba(239,49,47,.35)}.step-nav-item.active span{background:var(--red);color:#fff}
.step-nav-item.done{color:#c6d0de}.step-nav-item.done span{background:var(--green);color:#fff}
.wizard-form{position:relative;display:flex;flex-direction:column;min-width:0;max-height:690px;background:#fff}
.advisor-message{display:flex;align-items:center;gap:12px;margin:18px 18px 8px;padding:13px 15px;border:1px solid #f1dcdb;background:linear-gradient(135deg,#fff,#fff5f4);border-radius:17px}.advisor-icon{width:40px;height:40px;border-radius:13px;background:#181d26;color:#fff;display:grid;place-items:center}.advisor-message b{font-size:10px;color:var(--red);letter-spacing:.06em}.advisor-message p{margin:3px 0 0;color:#626c7c;font-size:12px}
.wizard-step{padding:10px 36px 100px;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;flex:1}.wizard-step.active{animation:stepIn .34s var(--ease)}
@keyframes stepIn{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
.question-number{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,#f04c49,#d92624);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:12px}
.wizard-step h3{font-size:31px;line-height:1.08;letter-spacing:-.035em;margin:0 0 8px}.question-help{color:#778090;line-height:1.5;margin:0 0 24px;font-size:13px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-grid .full{grid-column:1/-1}
.field{display:grid;gap:7px}.field>span,.choice-field legend{font-size:11px;font-weight:900;color:#343b47}
.field input,.field select,.field textarea{min-height:52px;border:1px solid #dce2ea;border-radius:14px;background:#fff;padding:0 14px;color:#222833;outline:0}.field textarea{padding:13px;min-height:120px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--red);box-shadow:0 0 0 4px rgba(239,49,47,.09)}
.choice-field{border:0;padding:0;margin:0}.choice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:10px}.choice-grid.three{grid-template-columns:repeat(3,1fr)}
.choice-grid label{position:relative}.choice-grid input{position:absolute;opacity:0;pointer-events:none}.choice-grid label>span{min-height:76px;border:1px solid #dde3eb;border-radius:15px;padding:13px;background:#f8fafc;display:flex;flex-direction:column;justify-content:center;gap:4px;transition:.18s var(--ease);font-size:18px}.choice-grid label>span b{font-size:12px}.choice-grid label>span small{font-size:9px;color:#7b8594}
.choice-grid input:checked+span{border-color:var(--red);background:var(--red-soft);box-shadow:0 0 0 3px rgba(239,49,47,.08)}
.current-window-grid{grid-template-columns:repeat(3,1fr)}.problem-grid{grid-template-columns:repeat(3,1fr)}.priority-grid{grid-template-columns:repeat(2,1fr)}
.area-preview{margin-top:18px;padding:16px;border-radius:16px;background:#f2f6fa;display:flex;justify-content:space-between;align-items:center}.area-preview span{font-size:11px;color:#6d7787}.area-preview strong{font-size:20px}
.advanced-details{margin-top:16px;border:1px solid #dfe4eb;border-radius:15px;padding:13px 15px;background:#f9fafc}.advanced-details summary{font-weight:850;font-size:12px;cursor:pointer}.advanced-details[open] summary{margin-bottom:14px}.check-line{display:flex!important;grid-template-columns:auto 1fr;align-items:center;padding-top:24px}.check-line input{min-height:auto;width:18px;height:18px;accent-color:var(--red)}
.wizard-actions{position:absolute;left:0;right:0;bottom:0;min-height:82px;display:flex;align-items:center;gap:10px;padding:13px 18px;border-top:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(14px)}.wizard-tip{margin:auto;color:#7c8594;font-size:10px;text-align:center}
.live-preview{background:linear-gradient(160deg,#1b2432,#2a374b);color:#fff;padding:22px;overflow:auto;max-height:690px}.preview-label{color:#ff938e;font-size:9px;font-weight:900;letter-spacing:.09em}.live-preview h3{font-size:25px;line-height:1.05;letter-spacing:-.03em;margin:7px 0 7px}.live-preview>p{font-size:11px;line-height:1.5;color:#aeb9c8;margin:0 0 16px}
.preview-score{display:grid;grid-template-columns:108px 1fr;align-items:center;gap:12px;padding:13px;border-radius:17px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.08)}
.score-ring{width:92px;height:92px;border-radius:50%;display:grid;place-content:center;background:conic-gradient(var(--red) 0 55%,rgba(255,255,255,.12) 55%);border:9px solid rgba(255,255,255,.07);text-align:center}.score-ring strong{font-size:28px}.score-ring span{font-size:9px;color:#c4ccda}.preview-score small{font-size:8px;color:#ff9894;font-weight:900}.preview-score b{display:block;margin-top:7px;font-size:12px}
.preview-scene{height:205px;border-radius:18px;margin:14px 0;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;position:relative;background:linear-gradient(90deg,#b6d8f0 0 50%,#ffdfaa 50%)}.preview-scene img{position:absolute;height:190px;left:50%;bottom:-10px;transform:translateX(-50%);filter:drop-shadow(0 10px 15px rgba(21,28,39,.25))}.preview-climate,.preview-room{padding:18px;display:grid;align-content:start}.preview-room{text-align:right}.preview-scene b{font-size:25px}.preview-scene span{font-size:9px;color:#53687b}
.preview-factors{display:grid;grid-template-columns:1fr 1fr;gap:8px}.preview-factors div{background:rgba(255,255,255,.09);border-radius:13px;padding:10px;display:grid;grid-template-columns:24px 1fr;gap:2px 8px}.preview-factors span{grid-row:1/3;color:#ff8e89}.preview-factors small{font-size:8px;color:#99a6b7}.preview-factors b{font-size:10px}
.preview-reason{margin-top:12px;padding:12px;border-radius:13px;background:rgba(239,49,47,.15);color:#ffd0ce;font-size:10px;line-height:1.45}
.results-section{padding:56px 0 72px}
.result-shell{width:var(--container);margin:auto;display:grid;gap:18px}
.result-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:1.08fr .72fr .62fr;gap:18px;background:linear-gradient(145deg,#fff,#f6f8fb);border:1px solid #fff;border-radius:30px;padding:28px;box-shadow:var(--shadow-md)}
.result-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 75% 0,rgba(239,49,47,.12),transparent 30%);pointer-events:none}
.result-copy,.result-visual,.result-impact{position:relative;z-index:1}.result-kicker{display:inline-flex;padding:7px 10px;border-radius:9px;background:var(--red-soft);color:var(--red);font-size:9px;font-weight:900;letter-spacing:.08em}.result-copy h2{font-size:48px;line-height:.96;letter-spacing:-.05em;margin:15px 0 10px}.result-copy>p{color:#697383;line-height:1.55}.result-reasons{display:grid;gap:8px;margin:20px 0}.result-reasons div{display:flex;gap:10px;align-items:flex-start;font-size:12px;line-height:1.4}.result-reasons i{width:24px;height:24px;border-radius:8px;background:#edf1f5;color:var(--red);display:grid;place-items:center;font-style:normal;flex:0 0 auto}.result-actions{display:flex;flex-wrap:wrap;gap:9px}
.result-visual{min-height:390px;display:grid;place-items:center;border-radius:24px;background:linear-gradient(145deg,#17202e,#29384d);overflow:hidden}.result-visual img{height:390px;object-fit:contain;filter:drop-shadow(0 24px 34px rgba(0,0,0,.35));z-index:2}.result-visual:before,.result-visual:after{content:"";position:absolute;height:3px;width:70%;border-radius:10px;animation:featuredFlow 3s infinite}.result-visual:before{left:-20%;top:35%;background:linear-gradient(90deg,transparent,#ffb15f)}.result-visual:after{right:-20%;top:55%;background:linear-gradient(90deg,#54c8ff,transparent);animation-direction:reverse}
.result-impact{display:flex;flex-direction:column;gap:10px}.score-compare-card,.range-card,.completeness-card{padding:17px;border-radius:18px;background:#fff;border:1px solid #e1e6ed}.score-compare-card small,.range-card small,.completeness-card small{display:block;color:#808a98;font-size:8px;font-weight:900;letter-spacing:.06em}.score-pair{display:flex;align-items:center;justify-content:space-between;margin-top:10px}.score-pair span{display:grid;gap:3px}.score-pair b{font-size:33px}.score-pair i{color:var(--red);font-style:normal}.range-card strong{display:block;color:var(--green);font-size:23px;margin:8px 0 3px}.range-card span,.completeness-card span{font-size:10px;color:#687282}.completeness-card strong{display:block;font-size:18px;margin:7px 0}
.option-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.option-card{position:relative;border:1px solid #dfe4eb;border-radius:22px;padding:19px;background:#fff;box-shadow:var(--shadow-sm)}.option-card.recommended{border-color:var(--red);background:linear-gradient(145deg,#fff,#fff5f4)}.option-label{font-size:9px;color:#7a8493;font-weight:900;text-transform:uppercase}.option-card h3{font-size:22px;margin:9px 0 6px}.option-card p{font-size:11px;color:#707989;line-height:1.45;min-height:48px}.option-metrics{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}.option-metrics div{padding:10px;border-radius:12px;background:#f1f4f7}.option-metrics small{display:block;font-size:8px;color:#7b8594}.option-metrics b{font-size:12px}.option-card button{width:100%;margin-top:12px}
.result-details-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-panel{background:#fff;border:1px solid #e0e5ec;border-radius:22px;padding:22px;box-shadow:var(--shadow-sm)}.result-panel h3{font-size:22px;margin:0 0 16px}.assumption-list,.next-step-list{display:grid;gap:8px}.assumption-list div{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid #edf0f4;font-size:11px}.assumption-list span{color:#727c8b}.next-step-list li{margin:8px 0;color:#5e6878;line-height:1.45}
.result-disclaimer{padding:14px 17px;border-radius:15px;background:#fff7e7;border:1px solid #f3dcae;color:#7c6032;font-size:11px;line-height:1.45}
.methodology-section{padding:60px 0;background:linear-gradient(155deg,#171c25,#253043);color:#fff;display:grid;align-items:center}
.methodology-grid{width:var(--container);margin:auto;display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:center}.methodology-grid h2{font-size:clamp(38px,4vw,64px);line-height:1.02;letter-spacing:-.045em;margin:16px 0}.methodology-grid>div>p{color:#b8c1cf;line-height:1.65;margin-bottom:24px}
.method-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px}.method-cards article{padding:22px;border-radius:20px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.08)}.method-cards span{color:#ff7e79;font-weight:900}.method-cards h3{font-size:18px;margin:12px 0 7px}.method-cards p{font-size:11px;color:#adb8c8;line-height:1.55;margin:0}
.site-footer{padding:26px max(24px,calc((100vw - 1440px)/2));display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;background:#10141b;color:#aeb7c5}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand img{width:115px;filter:brightness(0) invert(1)}.footer-brand span{font-size:10px;font-weight:900}.footer-links{display:flex;justify-content:center;gap:16px}.footer-links a{font-size:11px;text-decoration:none}.site-footer p{margin:0;font-size:9px;max-width:350px;text-align:right}
.app-dialog{width:min(920px,calc(100vw - 32px));max-height:min(90vh,900px);border:0;border-radius:28px;padding:0;box-shadow:0 40px 120px rgba(11,16,24,.34);overflow:auto}.app-dialog::backdrop{background:rgba(13,18,26,.62);backdrop-filter:blur(8px)}.dialog-head{position:sticky;top:0;z-index:3;display:flex;justify-content:space-between;align-items:flex-start;padding:24px;background:rgba(255,255,255,.95);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.dialog-head h2{font-size:30px;margin:9px 0 0}.icon-button{width:44px;height:44px;border:1px solid #dce2e9;border-radius:14px;background:#f4f6f8;font-size:25px;color:#606a79}.product-dialog-grid{display:grid;grid-template-columns:320px 1fr;gap:24px;padding:24px}.product-dialog-visual{border-radius:22px;background:linear-gradient(145deg,#1a2230,#2b3a4f);display:grid;place-items:center;min-height:380px}.product-dialog-visual img{height:350px;object-fit:contain}.product-dialog-copy p{color:#6b7585;line-height:1.6}.spec-table{display:grid;grid-template-columns:1fr 1fr;gap:8px}.spec-table div{padding:12px;border-radius:12px;background:#f2f5f8}.spec-table small{display:block;color:#818b99;font-size:9px}.spec-table b{font-size:13px}.compare-table-wrap{padding:24px;overflow:auto}.compare-table{width:100%;border-collapse:separate;border-spacing:0}.compare-table th,.compare-table td{padding:13px;border-bottom:1px solid #e5e9ef;text-align:left;font-size:11px}.compare-table th{position:sticky;top:94px;background:#fff;z-index:2}.compare-table th:first-child,.compare-table td:first-child{color:#737d8c;font-weight:800}
.lead-form{padding:24px;display:grid;gap:14px}.consent-line{display:flex;align-items:flex-start;gap:10px;font-size:11px;line-height:1.45;color:#4f5968}.consent-line input{margin-top:2px;accent-color:var(--red)}.consent-line.optional{color:#737c8b}.honeypot{position:absolute;left:-9999px}.form-status{min-height:18px;font-size:11px}.form-status.success{color:var(--green)}.form-status.error{color:var(--red)}
.toast-region{position:fixed;right:20px;bottom:20px;z-index:300;display:grid;gap:8px}.toast{max-width:360px;padding:13px 16px;border-radius:14px;background:#181d25;color:#fff;box-shadow:var(--shadow-md);font-size:11px;animation:toastIn .25s var(--ease)}.toast.error{background:#9f2421}.toast.success{background:#19633c}@keyframes toastIn{from{opacity:0;transform:translateY(12px)}}
.simple-page{background:#f6f8fb}.simple-content{width:min(1100px,calc(100vw - 40px));margin:54px auto 80px;background:#fff;border-radius:28px;padding:42px;box-shadow:var(--shadow-md);min-height:55vh}.simple-content h1{font-size:52px;letter-spacing:-.04em}.simple-content p,.simple-content li{line-height:1.7;color:#606a79}.system-page-grid{display:grid;grid-template-columns:1fr 420px;gap:36px}.system-page-grid .lead{font-size:18px}.system-page-visual{border-radius:24px;background:linear-gradient(145deg,#19222f,#2b3a4f);display:grid;place-items:center}.system-page-visual img{height:500px;object-fit:contain}.spec-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:28px 0}.spec-list div{padding:14px;border-radius:14px;background:#f1f4f7}.spec-list dt{font-size:9px;color:#7a8492}.spec-list dd{margin:6px 0 0;font-weight:900}
@media(max-width:1280px){
  :root{--container:min(1180px,calc(100vw - 32px))}
  .brand{min-width:auto}.main-nav a{padding:9px 12px}.header-cta{display:none}
  .hero-grid{grid-template-columns:.8fr 1.2fr;gap:18px}.hero-copy h1{font-size:58px}
  .catalog-studio{grid-template-columns:330px 1fr}.catalog-grid{grid-template-columns:repeat(2,1fr)}
  .wizard-layout{grid-template-columns:190px minmax(0,1fr) 300px}
  .result-hero{grid-template-columns:1fr .68fr}.result-impact{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr)}
}
@media(max-width:1024px){
  :root{--header-h:68px;--container:calc(100vw - 28px)}
  .pilot-banner{font-size:10px}.main-nav{display:none}.menu-toggle{display:block}.brand img{width:135px}
  .screen-section{min-height:auto}
  .hero-section{padding-top:24px}.hero-grid{grid-template-columns:1fr}.hero-copy{text-align:center}.hero-copy h1{max-width:850px;margin-left:auto;margin-right:auto}.hero-lead{margin:auto}.hero-actions{justify-content:center}.trust-row,.how-inline{max-width:800px;margin-left:auto;margin-right:auto}
  .hero-lab{max-width:900px;margin:auto;width:100%}
  .catalog-section{padding-top:56px}.section-heading{align-items:flex-start}.catalog-studio{grid-template-columns:1fr}.featured-system{display:grid;grid-template-columns:220px 1fr;column-gap:20px}.featured-visual{grid-row:1/7;height:300px}.featured-visual img{height:300px}.featured-actions{max-width:430px}
  .catalog-grid{max-height:620px}
  .calculator-heading{align-items:flex-start}.wizard-layout{grid-template-columns:1fr}.step-nav{flex-direction:row;overflow:auto;padding:10px;background:#171d27}.step-nav-item{min-width:130px}.wizard-form{max-height:none}.wizard-step{max-height:none;overflow:visible}.live-preview{max-height:none;display:grid;grid-template-columns:1fr 1fr;gap:12px}.live-preview>p,.preview-reason{grid-column:1/-1}.preview-scene{margin:0}.wizard-actions{position:sticky;z-index:4}
  .result-hero{grid-template-columns:1fr 1fr}.result-impact{grid-column:1/-1}.option-grid{grid-template-columns:1fr}.result-details-grid{grid-template-columns:1fr}
}
@media(max-width:720px){
  :root{--container:calc(100vw - 20px);--radius-lg:24px}
  html{scroll-padding-top:86px}.pilot-banner{justify-content:flex-start;overflow:hidden;white-space:nowrap}.pilot-banner span:nth-child(2){overflow:hidden;text-overflow:ellipsis}
  .site-header{height:64px}.header-inner{gap:10px}.brand img{width:112px}.brand-divider,.brand-product{display:none}.locale-switch a{padding:8px}.header-actions{margin-left:auto}
  .hero-section{padding:20px 0 34px}.hero-copy{padding:6px}.hero-copy h1{font-size:42px;line-height:1}.hero-lead{font-size:16px}.hero-actions{display:grid;grid-template-columns:1fr}.btn-large{width:100%}.trust-row{grid-template-columns:1fr}.how-inline{grid-template-columns:1fr 1fr 1fr}.how-inline div{display:grid;text-align:center;padding:9px 5px}
  .hero-lab{padding:13px;border-radius:22px}.lab-head{display:grid}.lab-head h2{font-size:20px}.scenario-tabs{width:100%}.scenario-tab{flex:1;padding:0 8px}.energy-stage{min-height:360px}.energy-svg{min-height:360px;transform:scale(1.08);transform-origin:center}.score-card{left:12px;bottom:54px;width:142px;padding:13px}.score-card strong{font-size:32px}.saving-card{right:10px;bottom:55px;padding:10px}.saving-card .saving-icon{width:34px;height:34px}.saving-card strong{font-size:20px}.stage-message{left:12px;right:12px;bottom:8px;min-height:43px;padding:9px 12px;font-size:9px}.compare-control{grid-template-columns:1fr 1fr}.compare-control input{grid-column:1/-1;grid-row:1}.compare-control span:last-child{text-align:right}.season-row{align-items:flex-start;display:grid}.season-row p{font-size:10px}
  .section-heading{display:grid}.section-heading h2{font-size:38px}.catalog-count{min-width:0;width:100%}.catalog-studio{padding:8px}.featured-system{display:flex;padding:18px}.featured-visual{height:220px;margin:-8px 0}.featured-visual img{height:230px}.featured-system h3{font-size:30px}.featured-specs{width:100%}.featured-actions{grid-template-columns:1fr}
  .catalog-workspace{padding:10px}.catalog-toolbar{grid-template-columns:1fr}.filter-group{overflow:auto;flex-wrap:nowrap;padding-bottom:3px}.filter-chip{white-space:nowrap}.compare-button{width:100%}.catalog-grid{grid-template-columns:1fr;max-height:none;overflow:visible;padding:10px 0}.product-card{grid-template-columns:86px 1fr}
  .calculator-section{padding:44px 0}.calculator-heading{display:grid}.calculator-shell{border-radius:22px}.wizard-topbar{grid-template-columns:1fr;gap:9px}.wizard-topbar progress{grid-row:2}.save-status{justify-self:start}.step-nav{position:sticky;top:64px;z-index:5}.step-nav-item{min-width:108px;padding:8px}.step-nav-item b{font-size:9px}
  .advisor-message{margin:12px 10px 5px}.wizard-step{padding:12px 16px 104px}.wizard-step h3{font-size:27px}.form-grid,.choice-grid.three,.current-window-grid,.problem-grid,.priority-grid{grid-template-columns:1fr}.choice-grid{grid-template-columns:1fr 1fr}.choice-grid label>span{min-height:68px}.wizard-actions{padding:10px;display:grid;grid-template-columns:auto 1fr}.wizard-tip{display:none}.wizard-actions .btn-primary{grid-column:2}.live-preview{display:block;padding:18px}.preview-score{grid-template-columns:90px 1fr}.preview-scene{margin:12px 0}.preview-factors{grid-template-columns:1fr 1fr}
  .result-shell{width:var(--container)}.result-hero{grid-template-columns:1fr;padding:18px}.result-copy h2{font-size:38px}.result-visual{min-height:300px}.result-visual img{height:300px}.result-impact{display:grid;grid-template-columns:1fr}.option-grid,.result-details-grid{grid-template-columns:1fr}
  .methodology-grid{grid-template-columns:1fr;gap:28px}.method-cards{grid-template-columns:1fr}.site-footer{grid-template-columns:1fr;text-align:center}.footer-brand,.footer-links{justify-content:center}.site-footer p{text-align:center;margin:auto}
  .product-dialog-grid{grid-template-columns:1fr}.product-dialog-visual{min-height:280px}.product-dialog-visual img{height:270px}.spec-table{grid-template-columns:1fr}.dialog-head h2{font-size:24px}
  .simple-content{padding:24px}.simple-content h1{font-size:38px}.system-page-grid{grid-template-columns:1fr}.system-page-visual img{height:340px}.spec-list{grid-template-columns:1fr}
}
@media(max-width:420px){
  .header-inner{width:calc(100vw - 16px)}.locale-switch{display:none}.hero-copy h1{font-size:38px}.how-inline span{font-size:9px}
  .scenario-tab span{display:none}.energy-stage{min-height:330px}.energy-svg{min-height:330px}.score-card{width:125px}.saving-card small{display:none}
  .featured-specs{grid-template-columns:1fr 1fr}.featured-specs div:last-child{grid-column:1/-1}
  .choice-grid{grid-template-columns:1fr}.preview-factors{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .cold-flow path,.akfa-effects path,.stage-room>path,.featured-flow{animation:none!important}
}
@media print{
  .pilot-banner,.site-header,.hero-section,.catalog-section,.calculator-section,.methodology-section,.site-footer,.toast-region{display:none!important}
  .results-section{display:block!important;padding:0}.result-shell{width:100%}.result-hero,.option-card,.result-panel{box-shadow:none}
}