:root{--ink:#0b2738;--deep:#0d344c;--blue:#168abe;--sky:#d9f4ff;--pale:#f4fbfe;--line:#cfe3ec;--muted:#58707f;--white:#fff;--lime:#b8f06a;--max:1240px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.wrap{width:min(var(--max),calc(100% - 44px));margin:auto}.header{position:sticky;top:0;z-index:50;background:#f4fbfedd;border-bottom:1px solid #cae2ed;backdrop-filter:blur(18px)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}.logo img{width:138px;height:54px;object-fit:contain}.navlinks{display:flex;gap:30px;margin-left:auto;font-size:14px;font-weight:650}.navlinks a{position:relative}.navlinks a:after{content:"";position:absolute;left:0;right:100%;bottom:-8px;height:2px;background:var(--blue);transition:.25s}.navlinks 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@media(max-width:980px){.navlinks{display:none}.menu{display:block}.menu.open span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu.open span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.nav-cta{margin-left:auto}.navlinks.open{display:flex;position:absolute;top:78px;left:0;right:0;margin:0;padding:20px 22px 26px;background:#f4fbfe;flex-direction:column;border-bottom:1px solid var(--line)}.hero-grid{grid-template-columns:1fr;min-height:auto}.hero-copy{padding-bottom:15px}.hero-visual{min-height:530px}.hero-visual>img{height:555px;right:10%}.hero-visual:before{left:10%;top:0}.facts{grid-template-columns:1fr 1fr}.facts div:nth-child(2){border-right:0}.facts div:nth-child(-n+2){border-bottom:1px solid #ffffff20}.section{padding:86px 0}.section-head{grid-template-columns:1fr;gap:22px}.use-grid{grid-template-columns:1fr 1fr}.filters-grid,.specs-grid{grid-template-columns:1fr;gap:50px}.filter-image img{max-height:620px;object-fit:contain}.function-grid{grid-template-columns:1fr 1fr}.spec-intro img{height:350px;margin-bottom:-50px}.safety-grid,.faq-grid,.closing-inner{grid-template-columns:1fr;gap:35px}}
@media(max-width:620px){.wrap{width:min(100% - 28px,var(--max))}.nav{height:68px}.logo img{width:108px;height:46px}.nav-cta{display:none}.navlinks.open{top:68px}.hero{padding-top:18px}.hero-copy{padding-top:34px}.hero h1{font-size:51px}.lead{font-size:16px;margin:22px 0}.hero-actions{display:grid}.button{width:100%}.quick{gap:15px;margin-top:30px}.quick li{flex:1}.quick b{font-size:17px}.quick span{font-size:10px}.hero-visual{min-height:420px}.hero-visual>img{height:420px;right:4%;bottom:-10px}.hero-visual:before{width:400px;height:400px;left:-10%;top:10px}.area-card{right:0;top:50px}.area-card strong{font-size:21px}.air-card{left:0;bottom:45px}.facts{width:100%;border-radius:0;padding:0 10px}.facts div{padding:19px 10px}.facts b{font-size:15px}.section{padding:68px 0}.section h2,.closing h2{font-size:40px}.use-grid,.function-grid{grid-template-columns:1fr}.use-grid article{min-height:200px}.use-grid h3{margin-top:30px}.filters-grid{gap:35px}.filter-image img{max-height:none}.feature.large,.feature.wide{grid-column:auto;grid-row:auto}.feature.wide{grid-template-columns:1fr}.feature.wide img{height:180px}.spec-intro img{height:300px;margin-bottom:-30px}.spec-table div{grid-template-columns:1.1fr .9fr;gap:10px}.spec-table dt,.spec-table dd{font-size:13px}.safety-grid{gap:26px}.closing{padding:70px 0}.footer-inner{flex-wrap:wrap;padding:24px 0}.footer-inner p{order:3;width:100%;margin:0}.footer-inner a{margin-left:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Full-bleed filtration artwork: keep the portrait image flush with the card edges. */
.filter-image img{width:100%;height:auto;max-height:none;object-fit:cover;object-position:center}
@media(max-width:980px){.filter-image img{width:100%;height:auto;max-height:none;object-fit:cover}}

/* Additional purification functions shown with the filtration artwork. */
.button.whatsapp{color:#fff;background:#1b9d59;box-shadow:0 12px 30px #167a4522}.button.whatsapp:hover{background:#157d47}.filter-image-correction{position:absolute;z-index:2;top:24.7%;left:4%;width:25%;padding:2px 1px;background:#fff;color:#232c31;font-size:clamp(10px,1.45vw,15px);line-height:1.25;text-align:center}.filter-image-extra{display:grid;gap:7px;margin:0 18px 58px;padding:13px 15px;border:1px solid #c9e4ee;border-radius:14px;background:#f5fcff;color:#276178;font-size:12px;line-height:1.25}.filter-image-extra b{color:var(--blue);font-size:10px;letter-spacing:.13em;text-transform:uppercase}.filter-image-extra span{font-weight:750}@media(max-width:620px){.filter-image-correction{font-size:clamp(10px,3vw,15px)}}

/* SEO content, language navigation and commercial details. */
.language-links{display:flex;gap:8px;font-size:11px;font-weight:800;letter-spacing:.08em}.language-links a{padding:7px 5px;border-radius:7px;color:#607783}.language-links a[aria-current="page"]{background:var(--sky);color:var(--deep)}.hero-slogan{margin:0 0 14px;color:var(--blue);font-size:14px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.technology{background:#f7fbfd}.technology-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:30px}.technology-grid article,.comparison{padding:26px;border:1px solid #d6e7ee;border-radius:20px;background:#fff}.technology-grid h3,.comparison h3{margin:0 0 12px;font-size:20px}.technology-grid p{margin:0;color:var(--muted);line-height:1.6;font-size:14px}.comparison{overflow-x:auto}.comparison table{width:100%;border-collapse:collapse;min-width:650px}.comparison th,.comparison td{padding:14px;text-align:left;vertical-align:top;border-bottom:1px solid #dce9ee;font-size:14px;line-height:1.5}.comparison th{color:var(--blue);font-size:12px;letter-spacing:.06em;text-transform:uppercase}.comparison tbody tr:last-child td{border-bottom:0}.order{padding:76px 0;background:#dff5fc}.order-grid{display:flex;align-items:center;justify-content:space-between;gap:40px}.order-grid h2{margin:0 0 18px}.order-grid p{max-width:670px;margin:0;color:#3b5969;line-height:1.65}.order-grid .button{flex:0 0 auto}@media(max-width:980px){.language-links{margin-left:auto}.technology-grid{grid-template-columns:1fr}.order-grid{align-items:flex-start;flex-direction:column}}@media(max-width:620px){.language-links{display:none}.hero h1{font-size:45px}.order-grid .button{width:100%}}

/* Article hub and editorial pages. */
.knowledge{background:#fff}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.article-card{display:block;min-height:180px;padding:24px;border:1px solid #d6e7ee;border-radius:20px;background:#fff;transition:transform .2s,box-shadow .2s}.article-card:hover{transform:translateY(-3px);box-shadow:0 16px 36px #12394c12}.article-card h2,.article-card h3{margin:0 0 12px;font-size:21px;line-height:1.15}.article-card p{margin:0;color:var(--muted);line-height:1.55;font-size:14px}.knowledge-link{margin:28px 0 0}.page-title{max-width:850px;margin:0;font-size:clamp(43px,6vw,72px);font-weight:850;letter-spacing:-.06em;line-height:1}.narrow{max-width:850px}.article{padding-top:92px}.article .lead{max-width:760px}.article h2{margin:44px 0 14px;font-size:30px;letter-spacing:-.035em}.article p,.article li{color:#456171;font-size:17px;line-height:1.7}.article ul,.article ol{padding-left:24px}.text-link{color:var(--blue);font-weight:750;text-decoration:underline;text-underline-offset:3px}@media(max-width:980px){.article-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.article-grid{grid-template-columns:1fr}.article{padding-top:62px}.article h2{font-size:27px}.article p,.article li{font-size:16px}}
.article-table{width:100%;margin:24px 0;border-collapse:collapse;border:1px solid #cfe3ec}.article-table th,.article-table td{padding:13px 15px;border:1px solid #cfe3ec;text-align:left;vertical-align:top;color:#456171;line-height:1.5}.article-table th{background:#eef9fd;color:var(--deep);font-size:14px}@media(max-width:620px){.article-table{font-size:14px}.article-table th,.article-table td{padding:10px}}

/* Desktop first screen: all hero copy, actions, full product and key specifications remain visible. */
@media(min-width:981px){.hero{height:auto;min-height:0;display:block}.hero-grid{min-height:560px}.hero-copy{padding:34px 0 28px}.hero h1{font-size:clamp(44px,5vw,68px)}.lead{margin:16px 0;font-size:16px;line-height:1.5}.hero-actions{gap:9px}.button{min-height:46px;padding:0 17px}.quick{margin-top:24px}.hero-visual{min-height:560px}.hero-visual>img{height:560px;right:3%;bottom:0}.facts div{padding:18px 22px}.area-card{top:38px}.air-card{bottom:32px}}

/* Shared full-bleed hero photograph: keep the family, purifier and city view unobstructed. */
.hero{padding:0;background-color:#061a28;background-image:linear-gradient(90deg,#061a28a8 0%,#0b263a60 25%,#0b263a12 48%,#0b263a08 100%),url("assets/hero-family-air.png");background-position:center center,center top;background-size:cover,contain;background-repeat:no-repeat;color:#fff}.hero-grid{min-height:620px;grid-template-columns:minmax(280px,330px) 1fr;width:calc(100% - 44px);max-width:none}.hero-copy{grid-column:2;justify-self:end;align-self:start;max-width:330px;margin:0;padding:18px 20px 21px;border:1px solid #ffffff26;border-radius:0 0 20px 20px;background:#08213278;backdrop-filter:blur(3px);box-shadow:0 14px 38px #061a2833}.hero h1{font-size:clamp(32px,3.2vw,46px);letter-spacing:-.05em;text-shadow:0 2px 14px #061a28}.hero h1 em{color:#aeeaff}.hero .lead{margin:13px 0;color:#edf8fc;font-size:13px;line-height:1.5;text-shadow:0 1px 10px #061a28}.hero .hero-slogan{margin:12px 0 0;color:#b9efff;font-size:11px;text-shadow:0 1px 10px #061a28}.hero .button.primary{background:#fff;color:var(--deep);box-shadow:none}.hero .button.ghost{border-color:#ffffff99;background:#ffffff1a;color:#fff}.hero .quick{gap:14px;margin-top:21px}.hero .quick b{font-size:17px}.hero .quick span{color:#d7e9f0}.hero .facts{margin-top:0}
@media(min-width:981px){.hero-grid{min-height:min(620px,42.15vw)}.hero-copy{padding:18px 20px 21px}.hero h1{font-size:clamp(32px,3.2vw,46px)}.hero .lead{font-size:13px}.hero .quick{margin-top:21px}}
@media(max-width:980px){.hero{background-position:55% center}.hero-grid{grid-template-columns:1fr;min-height:590px}.hero-copy{grid-column:1;margin:0;max-width:370px}.hero-visual{display:none}}
@media(max-width:620px){.hero{background-position:58% center}.hero-grid{min-height:620px}.hero-copy{margin:0;padding:18px 20px 21px}.hero h1{font-size:35px}.hero .lead{font-size:13px}.hero .quick{gap:12px}.hero .hero-actions{gap:8px}}

/* Consolidated first-screen specifications panel. */
.facts{grid-template-columns:repeat(9,1fr)}.facts div{padding:14px 11px}.facts b{font-size:15px}.facts span{font-size:11px}
@media(max-width:980px){.facts{grid-template-columns:repeat(2,1fr)}.facts div:nth-child(2){border-right:1px solid #ffffff20}.facts div:nth-child(-n+2){border-bottom:1px solid #ffffff20}}
@media(max-width:620px){.facts{grid-template-columns:1fr 1fr}.facts div{padding:16px 10px}.facts b{font-size:14px}.facts span{font-size:10px}}


/* Unified light Mountain Air treatment for the controls section. */
.functions{position:relative;overflow:hidden;background:linear-gradient(145deg,#f6fcff 0%,#e1f5fc 100%);color:var(--ink)}
.functions:before{content:"";position:absolute;width:620px;height:620px;right:-280px;top:-250px;border:1px solid #73c8e533;border-radius:50%;box-shadow:0 0 0 80px #65c6e50c,0 0 0 160px #65c6e508}
.functions .wrap{position:relative;z-index:1}
.functions .section-head.light>p{color:var(--muted)}
.functions .kicker{color:var(--blue)}
.function-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;align-items:stretch}
.feature{position:relative;overflow:hidden;min-height:210px;padding:27px;border:1px solid #cfe4ed;border-radius:22px;background:#ffffffd9;color:var(--ink);box-shadow:0 18px 48px #123f5510}
.feature:after{content:"";position:absolute;width:80px;height:80px;right:-34px;bottom:-34px;border:1px solid #8dd2e855;border-radius:50%}
.feature.large{grid-column:span 2;grid-row:span 2;min-height:448px;padding:32px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(150deg,#fff 0%,#eefaff 100%)}
.feature.wide{grid-column:1/-1;min-height:280px;padding:34px 34px 0;display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;background:linear-gradient(110deg,#fff 0 47%,#d8f2fc 100%)}
.feature h3{margin:10px 0;font-size:22px;color:var(--ink)}
.feature p{margin:0;color:#627986;font-size:15px;line-height:1.55}
.feature .tag{color:var(--blue);font-size:11px;font-weight:850;letter-spacing:.15em}
.feature-no{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:#d9f4ff;color:var(--blue);font-size:12px;font-weight:850}
.feature-copy{position:relative;z-index:2}
.air-display{margin-top:24px;padding:21px 23px 18px;border-radius:19px;background:linear-gradient(145deg,#0b2c40,#0b4058);color:white;box-shadow:0 22px 42px #0c34472b}
.air-display-top{display:flex;justify-content:space-between;gap:16px;color:#94c7da;font-size:11px;letter-spacing:.05em}
.air-reading{display:flex;align-items:end;justify-content:space-between;gap:18px;margin:10px 0 15px}
.air-reading strong{font-size:73px;line-height:1;font-weight:750;letter-spacing:.05em}
.air-reading>span{display:flex;align-items:center;gap:8px;padding-bottom:9px;color:#d5e9f0;font-size:12px}
.air-reading>span i{width:9px;height:9px;border-radius:50%;background:#58d5a0;box-shadow:0 0 0 5px #58d5a01b}
.air-scale{height:5px;display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin-bottom:18px}
.air-scale i{border-radius:5px;background:#49c990}.air-scale i:nth-child(2){background:#83d35a}.air-scale i:nth-child(3){background:#f0c54b}.air-scale i:nth-child(4){background:#e86d65}
.panel-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
.panel-actions span{padding:9px 5px;border:1px solid #ffffff1f;border-radius:9px;text-align:center;color:#a8cbd8;font-size:10px}
.wifi-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.wifi-points span{padding:9px 11px;border:1px solid #b8dce9;border-radius:99px;background:#f6fcff;color:#416776;font-size:12px;font-weight:700}
.wifi-visual{position:relative;min-height:250px;align-self:end}
.wifi-visual img{position:absolute!important;right:4%;bottom:-25px;width:auto!important;height:300px!important;object-fit:contain!important;border-radius:0!important;margin:0!important;filter:drop-shadow(0 22px 22px #12394c24)}
.app-card{position:absolute;z-index:3;left:5%;top:38px;display:flex;align-items:center;gap:12px;padding:15px 18px;border-radius:17px;background:#fff;box-shadow:0 18px 44px #173d4e22}
.app-card b{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:#d9f4ff;color:var(--blue);font-size:20px}
.app-card span{color:#5f7885;font-size:11px;line-height:1.35}
.signal{position:absolute;z-index:4;left:36%;top:122px;display:flex;align-items:end;gap:4px;transform:rotate(90deg)}
.signal i{display:block;width:4px;border-radius:4px;background:var(--blue)}.signal i:nth-child(1){height:10px;opacity:.45}.signal i:nth-child(2){height:17px;opacity:.7}.signal i:nth-child(3){height:24px}
@media(max-width:980px){.function-grid{grid-template-columns:1fr 1fr}.feature.wide{grid-column:1/-1}}
@media(max-width:620px){.function-grid{grid-template-columns:1fr}.feature.large,.feature.wide{grid-column:auto;grid-row:auto;min-height:auto}.feature.wide{grid-template-columns:1fr;padding:28px 24px 0}.air-reading strong{font-size:58px}.air-reading{align-items:start;flex-direction:column}.wifi-visual{min-height:270px}.wifi-visual img{height:275px!important;right:-6%}.app-card{left:0;top:36px}.panel-actions{grid-template-columns:1fr 1fr}}