[hidden]{display:none!important}
@media(max-width:899px){.header{-webkit-backdrop-filter:none!important;backdrop-filter:none!important}}
*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.6;color:var(--ink);background:var(--bg);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}a{color:inherit}button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.2;font-family:var(--head)}p{margin:0 0 1em}ul,ol{margin:0;padding:0}
svg{width:1em;height:1em;fill:currentColor;flex:0 0 auto}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;z-index:200;background:#000;color:#fff;padding:8px 12px}.skip:focus{left:8px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid var(--focus,#2563eb);outline-offset:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 20px;border-radius:var(--r-btn,10px);border:2px solid transparent;font-weight:600;text-decoration:none;cursor:pointer;line-height:1.2;text-align:center;transition:transform .15s,background .15s}
.btn:active{transform:translateY(1px)}.btn--sm{min-height:40px;padding:8px 14px;font-size:14px}.btn--block{width:100%}
.burger{display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;padding:10px;flex-direction:column;justify-content:center;gap:5px}
.burger span{display:block;height:2px;background:currentColor;border-radius:2px;transition:.2s}
body.menu-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}body.menu-open .burger span:nth-child(2){opacity:0}body.menu-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field label,.field .lbl{font-weight:600;font-size:14px}
.field input,.field select,.field textarea{width:100%;min-height:46px;padding:10px 12px;border:1.5px solid var(--line-strong,#c8cdd6);border-radius:var(--r-in,8px);background:#fff;color:#16181d}
.field textarea{min-height:90px;resize:vertical}.field [aria-invalid=true]{border-color:#c62828}.err{color:#c62828;font-size:13px;min-height:0}
.form__ok{padding:12px 14px;border-radius:8px;background:#e8f5e9;color:#1b5e20;font-weight:500}.form__privacy{font-size:13px;color:var(--muted);margin:0}
.float{position:fixed;right:14px;bottom:18px;z-index:70;display:flex;flex-direction:column;gap:10px}
.float__btn{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;box-shadow:0 6px 18px rgba(0,0,0,.2);color:#fff}
.float__btn--zalo{background:#0068ff}.float__btn--zalo svg{width:34px;height:34px}.float__btn--call{background:#16a34a}.float__btn--call svg{width:24px;height:24px}
.demo-badge{position:fixed;left:12px;bottom:12px;z-index:60;font-size:12px;background:#111;color:#fff;padding:6px 10px;border-radius:6px;text-decoration:none}
.social{display:flex;gap:8px;margin-top:14px}.social a{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;border:1px solid currentColor;opacity:.85}.social svg{width:18px;height:18px}
details summary{cursor:pointer;list-style:none}details summary::-webkit-details-marker{display:none}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
:root{--ink:#0d2a4a;--bg:#f5faff;--pri:#0a6ad6;--pri-d:#0855ad;--sky:#dff0ff;--sky-2:#bfe2ff;--aqua:#18c2d8;--acc:#ffd23f;--muted:#4b6280;--line:#d8e6f5;--line-strong:#a8c1dc;--font:"Nunito",system-ui,sans-serif;--head:"Nunito",system-ui,sans-serif;--r-btn:999px;--r-in:14px;--focus:#0a6ad6}
h1,h2,h3{font-weight:900;letter-spacing:-.01em}h2{font-size:clamp(28px,3.8vw,42px)}
.btn{border-radius:999px;font-weight:800}.btn--pri{background:var(--pri);color:#fff}.btn--pri:hover{background:var(--pri-d)}.btn--y{background:var(--acc);color:var(--ink)}.btn--y:hover{background:#ffdd66}.btn--w{background:#fff;color:var(--pri);border:2px solid var(--sky-2)}.btn--w:hover{border-color:var(--pri)}
.header{position:sticky;top:0;z-index:50;background:rgba(245,250,255,.95);backdrop-filter:blur(8px);box-shadow:0 1px 0 var(--line)}.header__inner{display:flex;align-items:center;gap:18px;min-height:70px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--pri);font-weight:900;font-size:24px}.logo__mark{width:40px;height:40px;border-radius:50% 50% 50% 8px;background:linear-gradient(135deg,var(--aqua),var(--pri));color:#fff;display:grid;place-items:center;transform:rotate(-45deg)}.logo__mark svg{width:20px;height:20px;transform:rotate(45deg)}
.nav{margin-left:auto;display:flex;align-items:center;gap:24px}.nav ul{display:flex;gap:22px;list-style:none}.nav a{text-decoration:none;font-weight:700;font-size:15px}.nav ul a:hover{color:var(--pri)}
.pill{display:inline-block;background:#fff;color:var(--pri);border:1px solid var(--sky-2);border-radius:999px;padding:5px 14px;font-weight:800;font-size:13px;margin-bottom:12px}
.section{padding:80px 0}.section--sky{background:var(--sky)}.sec-head{text-align:center;max-width:680px;margin:0 auto 36px}.sec-head p{color:var(--muted)}
.wave{display:block;width:100%;height:60px}
.hero{background:linear-gradient(160deg,#e9f6ff 0,#cfe9ff 60%,#b6dcff 100%);padding:46px 0 0;overflow:hidden}.hero__grid{display:grid;gap:30px;align-items:center}
.hero h1{font-size:clamp(36px,5.6vw,64px);line-height:1.05;margin-bottom:14px}.hero h1 span{color:var(--pri)}.hero__lead{font-size:18px;color:var(--muted);max-width:520px}
.hero__btns{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}.badges{display:flex;flex-wrap:wrap;gap:10px;list-style:none}.badges li{background:rgba(255,255,255,.75);border-radius:999px;padding:7px 14px;font-weight:700;font-size:14px;display:flex;gap:6px;align-items:center}.badges svg{width:18px;height:18px;color:var(--pri)}
.hero__img{position:relative}.hero__img img{width:100%;aspect-ratio:1000/680;object-fit:cover;border-radius:46% 54% 44% 56%/52% 42% 58% 48%;box-shadow:0 30px 60px rgba(10,106,214,.25)}
.bubble{position:absolute;background:#fff;border-radius:20px;padding:12px 16px;box-shadow:0 12px 30px rgba(13,42,74,.15);font-weight:800;font-size:14px}.bubble b{display:block;font-size:26px;color:var(--pri);line-height:1}.bubble--1{left:2%;bottom:6%}.bubble--2{right:2%;top:4%}
.sub{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;margin:-6px auto 26px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 10px 8px 20px;max-width:560px}
.switch{position:relative;display:inline-flex;align-items:center;gap:10px;font-weight:800;cursor:pointer}.switch input{position:absolute;opacity:0}.switch i{width:50px;height:28px;border-radius:999px;background:var(--line-strong);position:relative;transition:background .2s}.switch i::after{content:"";position:absolute;left:3px;top:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:transform .2s}.switch input:checked+i{background:var(--pri)}.switch input:checked+i::after{transform:translateX(22px)}.switch input:focus-visible+i{outline:3px solid var(--pri);outline-offset:2px}
.sub small{background:var(--acc);border-radius:999px;padding:4px 10px;font-weight:800}
.filt{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:22px}.filt button{border:0;background:#fff;border-radius:999px;padding:9px 16px;font-weight:800;color:var(--muted);cursor:pointer;border:1px solid var(--line)}.filt button[aria-pressed=true]{background:var(--ink);color:#fff}
.prods{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.prod{background:#fff;border-radius:26px;padding:12px 12px 16px;display:flex;flex-direction:column;box-shadow:0 8px 24px rgba(13,42,74,.06)}.prod img{border-radius:20px;aspect-ratio:1;object-fit:cover;width:100%;background:var(--sky)}
.prod h3{font-size:18px;margin:10px 4px 2px}.prod h3 a{text-decoration:none}.prod__c{font-size:12px;font-weight:800;color:var(--aqua);text-transform:uppercase;letter-spacing:.06em;margin:10px 4px 0}.prod__p{margin:2px 4px 12px;font-weight:900;color:var(--pri);font-size:19px}.prod__p s{color:var(--muted);font-weight:600;font-size:14px;margin-left:6px}
.qty{display:flex;align-items:center;justify-content:space-between;background:var(--sky);border-radius:999px;padding:4px;margin-top:auto}.qty button{width:38px;height:38px;border-radius:50%;border:0;background:#fff;color:var(--pri);font-size:22px;font-weight:900;cursor:pointer;line-height:1}.qty button:hover{background:var(--pri);color:#fff}.qty output{font-weight:900;font-size:17px;min-width:30px;text-align:center}
.cart{position:fixed;left:50%;bottom:84px;transform:translate(-50%,20px);opacity:0;visibility:hidden;z-index:65;background:var(--ink);color:#fff;border-radius:999px;padding:8px 8px 8px 22px;display:flex;align-items:center;gap:16px;box-shadow:0 14px 40px rgba(0,0,0,.3);transition:transform .3s,opacity .3s,visibility .3s;max-width:calc(100% - 100px)}.cart.is-on{transform:translate(-50%,0);opacity:1;visibility:visible}.cart b{color:var(--acc)}.cart span{white-space:nowrap;font-size:15px}
.zone{display:grid;gap:24px;align-items:center}.zone__box{background:#fff;border-radius:28px;padding:26px;box-shadow:0 14px 40px rgba(13,42,74,.08)}.zone__res{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}.zone__res div{background:var(--sky);border-radius:18px;padding:14px}.zone__res small{display:block;color:var(--muted);font-weight:700}.zone__res b{font-size:22px;color:var(--pri)}
.zone__img img{border-radius:28px;width:100%;aspect-ratio:4/3;object-fit:cover}
.flow{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;list-style:none;counter-reset:f}.flow li{background:#fff;border-radius:22px;padding:18px;text-align:center}.flow li::before{counter-increment:f;content:counter(f);display:grid;place-items:center;width:44px;height:44px;margin:0 auto 10px;border-radius:50%;background:linear-gradient(135deg,var(--aqua),var(--pri));color:#fff;font-weight:900}.flow b{display:block}.flow span{font-size:14px;color:var(--muted)}
.qual{display:grid;gap:24px;align-items:center;margin-top:40px}.qual img{border-radius:28px;width:100%}.meters{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.meters div{background:#fff;border-radius:22px;padding:18px 12px;text-align:center;border:2px solid var(--sky-2)}.meters b{display:block;font-size:32px;color:var(--pri);font-weight:900;line-height:1.1}.meters span{font-size:13px;color:var(--muted);font-weight:700}
.office{display:grid;gap:26px;align-items:center;background:linear-gradient(135deg,var(--pri),#0a4fa0);color:#d7e9ff;border-radius:34px;padding:30px 22px;overflow:hidden}.office h2{color:#fff}.office img{border-radius:24px;width:100%}.office ul{list-style:none;display:grid;gap:10px;margin:16px 0 22px}.office li{display:flex;gap:10px}.office svg{width:22px;height:22px;color:var(--acc);flex:none}
.faq{display:grid;gap:12px;max-width:820px;margin:0 auto}.faq details{background:#fff;border-radius:20px;padding:0 22px;box-shadow:0 4px 14px rgba(13,42,74,.05)}.faq summary{padding:18px 36px 18px 0;font-weight:800;position:relative}.faq summary::after{content:"+";position:absolute;right:0;top:12px;width:28px;height:28px;border-radius:50%;background:var(--sky);color:var(--pri);display:grid;place-items:center;font-size:20px}.faq details[open] summary::after{content:"−"}.faq details p{color:var(--muted);margin:0 0 18px}
.order{display:grid;gap:26px}.form{background:#fff;border-radius:28px;padding:24px;display:grid;gap:14px;box-shadow:0 20px 50px rgba(13,42,74,.1)}.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.sum{background:var(--sky);border-radius:18px;padding:14px 16px;font-size:15px}.sum ul{list-style:none;display:grid;gap:4px;margin:6px 0}.sum li{display:flex;justify-content:space-between;gap:10px}.sum p{margin:0;display:flex;justify-content:space-between;font-weight:900;color:var(--pri);font-size:18px}
.footer{background:var(--ink);color:#a9bfd9;padding:56px 0 0;font-size:15px}.footer .logo{color:#fff}.footer__grid{display:grid;gap:28px}.footer__title{color:#fff;font-size:17px}.footer__links{list-style:none;display:grid;gap:8px}.footer__links a{text-decoration:none}.footer__links a:hover{color:#fff}
.footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;padding-bottom:90px;font-size:13px}.footer__bottom p{margin:0}
.bc{font-size:14px;display:flex;gap:6px;flex-wrap:wrap;padding:18px 0}.bc a{color:var(--pri);font-weight:700}
.pd{display:grid;gap:30px;padding-bottom:60px}.pd>*{min-width:0}.pd__img{background:var(--sky);border-radius:34px;padding:16px}.pd__img img{border-radius:24px;width:100%;aspect-ratio:1;object-fit:cover}.pd h1{font-size:clamp(32px,4.6vw,50px)}.pd__lead{font-size:17px;color:var(--muted)}
.pd__p{font-size:34px;font-weight:900;color:var(--pri);margin:6px 0 16px}.pd__p small{font-size:16px;color:var(--muted);font-weight:700}
.buy{background:#fff;border-radius:28px;padding:22px;display:grid;gap:16px;box-shadow:0 14px 40px rgba(13,42,74,.08)}.sched{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;border:0;padding:0;margin:0}.sched legend{font-weight:800;margin-bottom:8px}.sched label{position:relative}.sched input{position:absolute;opacity:0}.sched span{display:block;text-align:center;border:2px solid var(--line);border-radius:16px;padding:10px 4px;cursor:pointer;font-weight:800;font-size:14px}.sched small{display:block;font-weight:600;color:var(--muted);font-size:12px}.sched input:checked+span{border-color:var(--pri);background:var(--sky)}.sched input:focus-visible+span{outline:3px solid var(--pri);outline-offset:2px}
.bill{display:grid;gap:6px;border-top:2px dashed var(--line);padding-top:14px}.bill div{display:flex;justify-content:space-between;gap:10px}.bill .t{font-weight:900;font-size:22px;color:var(--pri)}
.spl{list-style:none;display:grid;gap:10px;margin-top:22px}.spl li{display:flex;gap:10px;background:#fff;border-radius:16px;padding:12px 14px}.spl svg{width:20px;height:20px;color:var(--aqua);flex:none;margin-top:2px}
@media(min-width:640px){.prods{grid-template-columns:repeat(3,1fr)}.flow{grid-template-columns:repeat(3,1fr)}}
@media(min-width:900px){.hero__grid{grid-template-columns:1fr 1fr;gap:48px}.prods{grid-template-columns:repeat(4,1fr)}.zone{grid-template-columns:1fr 1fr;gap:48px}.flow{grid-template-columns:repeat(6,1fr)}.qual{grid-template-columns:1fr 1fr;gap:48px}.office{grid-template-columns:1.1fr .9fr;padding:48px;gap:48px}.order{grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}.footer__grid{grid-template-columns:1.5fr 1fr 1fr}.pd{grid-template-columns:1fr 1fr;gap:48px;align-items:start}.buy{position:sticky;top:90px}}
@media(max-width:899px){.burger{display:flex}.nav{position:fixed;inset:0 0 0 auto;width:min(320px,86vw);background:var(--bg);flex-direction:column;align-items:stretch;padding:90px 24px 24px;gap:18px;transform:translateX(100%);transition:transform .25s;box-shadow:-10px 0 40px rgba(0,0,0,.15);z-index:60}
body.menu-open .nav{transform:none}.nav ul{flex-direction:column;gap:4px}.nav ul a{display:block;padding:12px 0;font-size:18px;border-bottom:1px solid var(--line)}.burger{position:relative;z-index:61}.header__inner{gap:10px}}
@media(max-width:480px){.container{padding:0 16px}.row2{grid-template-columns:1fr}.section{padding:60px 0}.prods{gap:10px}.prod{border-radius:20px;padding:8px 8px 12px}.prod h3{font-size:16px}.prod__p{font-size:17px}.qty button{width:34px;height:34px}.sub{border-radius:22px;padding:12px}.meters b{font-size:26px}.cart{padding-left:16px;gap:10px;left:14px;transform:translateY(20px);max-width:calc(100% - 90px)}.cart.is-on{transform:none}.cart span{font-size:14px}.bubble{padding:8px 12px}.bubble b{font-size:20px}}