:root{--ink: #0B2A4A;--ink-2: #143a63;--navy: #0A1E38;--navy-2: #0d2748;--blue: #0EA5E9;--blue-600: #0284C7;--sky: #38BDF8;--ice: #7DD3FC;--ice-soft: #E0F2FE;--mist: #F1F8FE;--white: #ffffff;--paper: #FAFCFF;--grey: #5B6B7C;--grey-2: #8A9AAB;--line: #E4EDF5;--warm: #F97316;--warm-soft: #FFEDD5;--grad-blue: linear-gradient(135deg, #38BDF8 0%, #0EA5E9 55%, #0284C7 100%);--grad-ice: linear-gradient(160deg, #E0F2FE 0%, #ffffff 60%);--grad-navy: linear-gradient(160deg, #0A1E38 0%, #0d2b4f 100%);--grad-glow: radial-gradient(60% 60% at 50% 0%, rgba(56,189,248,.35) 0%, rgba(56,189,248,0) 70%);--font-head: "Poppins", "Segoe UI", system-ui, sans-serif;--font-body: "Inter", "Segoe UI", system-ui, sans-serif;--r-sm: 10px;--r: 16px;--r-lg: 24px;--r-xl: 32px;--shadow-sm: 0 2px 10px rgba(11,42,74,.06);--shadow: 0 12px 40px rgba(11,42,74,.1);--shadow-lg: 0 30px 70px rgba(11,42,74,.16);--shadow-blue: 0 18px 40px rgba(14,165,233,.28);--maxw: 1200px;--gap: clamp(16px, 3vw, 32px);--header-h: 74px;--ease: cubic-bezier(.22,.61,.36,1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}body{font-family:var(--font-body);color:var(--ink);background:var(--white);line-height:1.65;font-size:17px;overflow-x:hidden;-webkit-font-smoothing:antialiased}img,svg{max-width:100%;display:block}a{color:inherit;text-decoration:none}ul{list-style:none}button{font-family:inherit;cursor:pointer;border:none;background:none}h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink);line-height:1.12;font-weight:700}h2.section-title{font-size:clamp(1.7rem,3vw,2.55rem);letter-spacing:-.02em}h3{font-size:clamp(1.15rem,2vw,1.5rem)}p{color:var(--grey)}.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(18px,4vw,40px)}section{position:relative;padding:clamp(56px,6.4vw,88px) 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auto 0;height:var(--header-h);z-index:100;display:flex;align-items:center;transition:background .4s var(--ease),box-shadow .4s var(--ease),backdrop-filter .4s,height .4s var(--ease);background:#fff0}.header .container{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}.header.scrolled{height:64px;background:#ffffffb8;backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);box-shadow:0 1px #0b2a4a0d,0 8px 28px #0b2a4a12}.brand{justify-self:start;display:flex;align-items:center}.brand img{height:30px;width:auto;display:block}.nav-links{justify-self:center;display:flex;align-items:center;gap:26px}.nav-links a{font-weight:500;font-size:.92rem;color:var(--ink-2);position:relative;padding:6px 2px;white-space:nowrap;transition:color .25s var(--ease)}.nav-links a:after{content:"";position:absolute;left:0;right:0;bottom:0;margin:auto;width:0;height:2px;border-radius:2px;background:var(--grad-blue);transition:width .3s var(--ease)}.nav-links a:hover{color:var(--blue-600)}.nav-links a:hover:after{width:100%}.nav-links a.active{color:var(--blue-600);font-weight:600}.nav-links a.active:after{width:100%}.header-cta{justify-self:end;display:flex;align-items:center;gap:16px}.header-note{font-size:.76rem;color:var(--grey-2);display:inline-flex;align-items:center;gap:7px;white-space:nowrap}.header-note svg{width:14px;height:14px;color:var(--sky)}.btn-sm{padding:9px 20px;font-size:.9rem}.header .btn{box-shadow:0 8px 20px #0ea5e938}.burger{display:none;width:44px;height:44px;border-radius:12px;position:relative}.burger span{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .2s}.burger span:nth-child(1){top:15px}.burger span:nth-child(2){top:21px}.burger span:nth-child(3){top:27px}body.menu-open .burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}body.menu-open .burger span:nth-child(2){opacity:0}body.menu-open 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65%);pointer-events:none}.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:clamp(30px,5vw,60px)}.hero-badge{display:inline-flex;align-items:center;gap:9px;font-size:.85rem;font-weight:600;color:var(--blue-600);background:#fff;border:1px solid var(--line);padding:8px 16px;border-radius:100px;box-shadow:var(--shadow-sm);margin-bottom:22px}.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 #22c55e80;animation:pulseDot 2s infinite}@keyframes pulseDot{0%{box-shadow:0 0 #22c55e80}70%{box-shadow:0 0 0 8px #22c55e00}to{box-shadow:0 0 #22c55e00}}.hero h1{font-size:clamp(2.3rem,4.6vw,3.5rem);letter-spacing:-.03em}.hero .promise{margin-top:20px;font-size:clamp(1.05rem,1.6vw,1.28rem);max-width:540px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}.hero-reassure{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:34px}.hero-reassure li{display:flex;align-items:center;gap:8px;font-size:.92rem;font-weight:500;color:var(--ink-2)}.hero-reassure svg{width:18px;height:18px;color:var(--blue);flex:none}.hero-stage{position:relative;display:grid;place-items:center;min-height:380px}.stage-glow{position:absolute;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.35),transparent 68%);filter:blur(10px)}.stage-ring{position:absolute;border-radius:50%;border:1px dashed rgba(14,165,233,.35)}.stage-ring.r1{width:340px;height:340px;animation:spin-slow 40s linear infinite}.stage-ring.r2{width:430px;height:430px;animation:spin-slow 60s linear infinite reverse;border-color:#0ea5e92e}.product-float{position:relative;z-index:3;animation:floaty 6s ease-in-out infinite;filter:drop-shadow(0 30px 40px rgba(11,42,74,.22))}.product-float .ac-unit{width:clamp(200px,22vw,270px)}.air-streams{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;pointer-events:none}.air-streams path{fill:none;stroke:var(--sky);stroke-width:2.5;stroke-linecap:round;opacity:.55;stroke-dasharray:12 16;animation:airDash 2.4s linear infinite}.air-streams path:nth-child(2){animation-delay:.5s;opacity:.4}.air-streams path:nth-child(3){animation-delay:1s;opacity:.3}@keyframes airDash{to{stroke-dashoffset:-56}}.snow{position:absolute;width:7px;height:7px;border-radius:50%;background:radial-gradient(circle,#fff,#bae6fd);box-shadow:0 0 8px #7dd3fce6;z-index:3}.ac-unit{--body:#fff}.trust-bar{background:var(--navy);color:#fff;padding:22px 0}.trust-bar .container{display:flex;flex-wrap:wrap;justify-content:space-around;gap:18px 30px}.trust-item{display:flex;align-items:center;gap:12px}.trust-item svg{width:26px;height:26px;color:var(--ice);flex:none}.trust-item b{font-family:var(--font-head);font-size:.98rem;color:#fff;display:block;line-height:1.2}.trust-item span{font-size:.8rem;color:#fff9}.ps-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,40px);align-items:stretch}.ps-card{border-radius:var(--r-lg);padding:clamp(26px,3vw,40px);position:relative;overflow:hidden}.ps-card.problem{background:linear-gradient(160deg,#fff7ed,#ffede0);border:1px solid #FCD9BD}.ps-card.solution{background:var(--grad-navy);color:#fff;box-shadow:var(--shadow-lg)}.ps-card .tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-head);font-weight:600;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;padding:6px 12px;border-radius:100px;margin-bottom:18px}.ps-card.problem .tag{background:#fcd9bd;color:#b45309}.ps-card.solution .tag{background:#38bdf829;color:var(--ice)}.ps-card h3{font-size:clamp(1.3rem,2.4vw,1.7rem);margin-bottom:16px}.ps-card.solution h3{color:#fff}.ps-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;font-size:1rem}.ps-card.problem .ps-list li{color:#7c2d12;border-bottom:1px solid rgba(180,83,9,.12)}.ps-card.solution .ps-list li{color:#ffffffe6;border-bottom:1px solid rgba(255,255,255,.1)}.ps-list li:last-child{border-bottom:none}.ps-ic{width:26px;height:26px;border-radius:8px;flex:none;display:grid;place-items:center}.ps-card.problem .ps-ic{background:#fca5a5;color:#7f1d1d}.ps-card.solution .ps-ic{background:#38bdf833;color:var(--ice)}.ps-ic svg{width:15px;height:15px}.ps-card.solution .cta-inline{margin-top:22px}.thermo-badge{position:absolute;top:26px;right:26px;font-family:var(--font-head);font-weight:700;font-size:1.5rem}.ps-card.problem .thermo-badge{color:#ea580c}.ps-card.solution .thermo-badge{color:var(--ice)}.how{background:var(--grad-navy);color:#fff;overflow:hidden}.how:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--grad-glow);opacity:.6}.how .section-title,.how h3{color:#fff}.how .section-head p{color:#ffffffb8}.how-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr 380px;gap:clamp(24px,4vw,50px);align-items:center}.how-diagram{position:relative;background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);padding:24px;min-height:340px}.how-diagram svg{width:100%;height:auto}.flow-line{fill:none;stroke:var(--sky);stroke-width:2.5;stroke-linecap:round;stroke-dasharray:8 10}.flow-line.animate{animation:airDash 1.6s linear infinite}.flow-particle{fill:var(--ice);opacity:0}.how-steps{display:flex;flex-direction:column;gap:14px}.how-step{display:flex;gap:16px;padding:16px 18px;border-radius:var(--r);background:#ffffff0a;border:1px solid rgba(255,255,255,.08);transition:background .4s var(--ease),border-color .4s,transform .4s}.how-step.active{background:#38bdf81f;border-color:#38bdf866;transform:translate(4px)}.how-step .num{width:38px;height:38px;border-radius:50%;flex:none;display:grid;place-items:center;font-family:var(--font-head);font-weight:700;background:#ffffff14;color:var(--ice);border:1px solid rgba(255,255,255,.14);transition:all .4s}.how-step.active .num{background:var(--grad-blue);color:#fff;border-color:transparent;box-shadow:var(--shadow-blue)}.how-step h4{color:#fff;font-size:1.02rem;margin-bottom:3px}.how-step p{color:#ffffff9e;font-size:.9rem;margin:0}.node-hot{fill:#f97316}.node-cold{fill:#38bdf8}.diagram-label{fill:#fff;font-family:var(--font-body);font-size:12px;font-weight:600}.diagram-sub{fill:#fff9;font-size:10px}.explore{background:var(--mist)}.explore-stage{position:relative;display:grid;place-items:center;min-height:440px}.explore-glow{position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.22),transparent 68%)}.explore-product{position:relative;z-index:2;width:clamp(230px,30vw,330px);animation:floaty-soft 7s ease-in-out infinite}.hotspot{position:absolute;z-index:4;width:34px;height:34px;border-radius:50%;background:#fff;border:2px solid var(--blue);color:var(--blue);display:grid;place-items:center;font-weight:700;box-shadow:var(--shadow);transition:transform .3s var(--ease),background .3s,color .3s}.hotspot:before{content:"";position:absolute;top:-6px;right:-6px;bottom:-6px;left:-6px;border-radius:50%;border:2px solid var(--blue);animation:pulse-ring 2.2s ease-out infinite}.hotspot:hover,.hotspot.active{background:var(--grad-blue);color:#fff;transform:scale(1.15)}.hotspot svg{width:16px;height:16px}.hotspot-card{position:absolute;z-index:6;width:250px;background:#fff;border-radius:var(--r);box-shadow:var(--shadow-lg);border:1px solid var(--line);padding:18px 18px 20px;opacity:0;visibility:hidden;transform:translateY(8px) scale(.96);transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;pointer-events:none}.hotspot-card.show{opacity:1;visibility:visible;transform:none;pointer-events:auto}.hotspot-card .hc-ic{width:38px;height:38px;border-radius:10px;background:var(--ice-soft);color:var(--blue-600);display:grid;place-items:center;margin-bottom:12px}.hotspot-card .hc-ic svg{width:20px;height:20px}.hotspot-card h4{font-size:1.05rem;margin-bottom:6px}.hotspot-card p{font-size:.88rem;margin:0}.hotspot-card .benefit{margin-top:10px;display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;color:var(--blue-600)}.hotspot-card .benefit svg{width:14px;height:14px}.explore-hint{text-align:center;margin-top:20px;font-size:.9rem;color:var(--grey-2)}.explore-hint svg{width:16px;height:16px;vertical-align:-3px}.explore-list{display:none}.specs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(14px,2vw,22px)}.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s}.spec-card:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad-blue);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}.spec-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}.spec-card:hover:before{transform:scaleX(1)}.spec-ic{width:52px;height:52px;border-radius:14px;background:var(--ice-soft);color:var(--blue-600);display:grid;place-items:center;margin-bottom:18px}.spec-ic svg{width:26px;height:26px}.spec-value{font-family:var(--font-head);font-weight:700;font-size:clamp(1.7rem,3vw,2.3rem);color:var(--ink);line-height:1;letter-spacing:-.02em}.spec-value .unit{font-size:1rem;color:var(--grey);font-weight:600;margin-left:3px}.spec-label{margin-top:8px;font-weight:600;color:var(--ink-2);font-size:.98rem}.spec-desc{margin-top:4px;font-size:.86rem;color:var(--grey)}.spec-mini{margin-top:14px;height:46px;display:flex;align-items:flex-end}.wave-bars{display:flex;align-items:flex-end;gap:4px;height:100%}.wave-bars i{width:5px;background:var(--sky);border-radius:3px;opacity:.75;animation:wavePulse 1.4s ease-in-out infinite}@keyframes wavePulse{0%,to{transform:scaleY(.5)}50%{transform:scaleY(1)}}.room-mini{width:100%;height:100%}.fan-mini{display:flex;gap:5px;align-items:flex-end;height:100%}.fan-mini i{flex:1;background:var(--ice);border-radius:3px 3px 0 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h4{color:#fff;font-size:1.2rem;margin-bottom:8px}.scn-prob{font-size:.85rem;color:#ffffffb3;display:flex;gap:7px;align-items:flex-start;margin-bottom:6px}.scn-ben{font-size:.9rem;color:var(--ice);font-weight:600;display:flex;gap:7px;align-items:flex-start}.scn-prob svg,.scn-ben svg{width:15px;height:15px;flex:none;margin-top:3px}.ba-wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,50px);align-items:center}.ba-visual{position:relative;border-radius:var(--r-xl);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-lg);-webkit-user-select:none;user-select:none;touch-action:none}.ba-layer{position:absolute;top:0;right:0;bottom:0;left:0}.ba-after{z-index:1}.ba-before{z-index:2;clip-path:inset(0 0 0 var(--split, 50%))}.ba-scene{width:100%;height:100%;display:flex;flex-direction:column;justify-content:space-between;padding:22px}.ba-before .ba-scene{background:linear-gradient(160deg,#fdba74,#f97316 90%)}.ba-after .ba-scene{background:linear-gradient(160deg,#7dd3fc,#0ea5e9 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