:root{--bg:#0d0d0f;--bg2:#141417;--card:#1a1a1e;--line:#2b2b31;--text:#f4f4f5;--muted:#a1a1aa;--or:#ff8a1f;--or2:#ffb454;--grn:#4ade80;--blu:#38bdf8;--red:#f87171;--r:16px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{max-width:100%;height:auto;display:block}
a{color:var(--or2);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em}
h1{font-size:clamp(2.2rem,5.4vw,4rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800;margin-bottom:14px}
h3{font-size:1.15rem;font-weight:700;margin-bottom:6px}
.wrap{max-width:1140px;margin:0 auto;padding:0 22px}
section{padding:92px 0;position:relative}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--or);margin-bottom:12px}
.lead{color:var(--muted);font-size:1.12rem;max-width:640px}
.grad{background:linear-gradient(90deg,var(--or),var(--or2) 50%,#ffd9a0);-webkit-background-clip:text;background-clip:text;color:transparent}
.sr{position:absolute;left:-9999px}
/* nav */
nav.top{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(13,13,15,.72);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .3s}
nav.top.scrolled{border-color:var(--line)}
nav.top .wrap{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text);font-size:1.05rem}
.brand:hover{text-decoration:none}.brand img{width:30px;height:30px}
nav.top ul{display:flex;gap:22px;list-style:none;margin-left:auto}
nav.top ul a{color:var(--muted);font-size:.93rem;font-weight:600}nav.top ul a:hover{color:var(--text);text-decoration:none}
.lang{background:none;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:5px 10px;font-weight:700;font-size:.8rem;cursor:pointer}
.lang:hover{border-color:var(--or)}
.burger{display:none;background:none;border:0;color:var(--text);font-size:1.6rem;cursor:pointer;margin-left:auto}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:12px;font-weight:700;font-size:.97rem;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s;color:#111;background:linear-gradient(135deg,var(--or),var(--or2));box-shadow:0 8px 28px -8px rgba(255,138,31,.55)}
.btn:hover{transform:translateY(-2px);text-decoration:none;box-shadow:0 14px 34px -8px rgba(255,138,31,.7)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--or);background:rgba(255,138,31,.07)}
.btn svg{width:20px;height:20px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
/* hero */
.hero{padding:150px 0 90px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 78% 28%,rgba(255,138,31,.22),transparent 70%),radial-gradient(40% 40% at 8% 70%,rgba(56,189,248,.09),transparent 70%);pointer-events:none}
.grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;opacity:.28;mask-image:radial-gradient(70% 70% at 50% 30%,#000,transparent);-webkit-mask-image:radial-gradient(70% 70% at 50% 30%,#000,transparent);animation:drift 24s linear infinite}
@keyframes drift{to{background-position:56px 56px}}
.hero .wrap{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;position:relative}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,138,31,.1);border:1px solid rgba(255,138,31,.35);color:var(--or2);padding:6px 14px;border-radius:99px;font-size:.82rem;font-weight:700;margin-bottom:22px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--grn);box-shadow:0 0 0 0 rgba(74,222,128,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}
.trust{display:flex;gap:22px;flex-wrap:wrap;margin-top:34px;color:var(--muted);font-size:.88rem}
.trust span::before{content:"✓ ";color:var(--grn);font-weight:800}
/* phone */
.phone{position:relative;width:min(300px,78vw);margin:0 auto;border-radius:38px;padding:11px;background:linear-gradient(160deg,#3a3a42,#18181c);box-shadow:0 40px 80px -20px rgba(0,0,0,.8),0 0 0 1px #46464f,0 0 120px -20px rgba(255,138,31,.35)}
.phone video,.phone img{border-radius:28px;width:100%;background:#000}
.phone.float{animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-14px) rotate(.6deg)}}
.chip{position:absolute;background:rgba(26,26,30,.92);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:14px;padding:10px 14px;font-size:.8rem;font-weight:700;box-shadow:0 12px 30px -10px #000;animation:float 5s ease-in-out infinite}
.chip small{display:block;color:var(--muted);font-weight:500;font-size:.7rem}
.chip.a{left:-34px;top:16%}.chip.b{right:-30px;bottom:20%;animation-delay:-2s}
.chip b{color:var(--grn);font-size:1.05rem}
/* marquee */
.marquee{border-block:1px solid var(--line);background:var(--bg2);overflow:hidden;padding:16px 0;white-space:nowrap}
.marquee div{display:inline-block;animation:scroll 40s linear infinite}
.marquee span{margin:0 26px;color:var(--muted);font-weight:700;font-size:.9rem;text-transform:uppercase;letter-spacing:.08em}
.marquee span::before{content:"◆ ";color:var(--or)}
@keyframes scroll{to{transform:translateX(-50%)}}
/* cycle ring */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.ringbox{display:flex;flex-direction:column;align-items:center;gap:22px}
.ring{position:relative;width:min(340px,80vw);aspect-ratio:1}
.ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:16;stroke-linecap:round}
.ring .bg{stroke:var(--line)}
.ring .seg{transition:stroke-dasharray .12s linear;filter:drop-shadow(0 0 6px currentColor)}
.ring .mid{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.ring .t{font-size:3rem;font-weight:800;font-variant-numeric:tabular-nums}
.ring .ph{font-weight:700;color:var(--or2);letter-spacing:.06em;text-transform:uppercase;font-size:.85rem}
.legend{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.legend button{background:var(--card);border:1px solid var(--line);color:var(--muted);padding:7px 14px;border-radius:99px;font-weight:700;font-size:.82rem;cursor:pointer}
.legend button.on{color:#111;border-color:transparent}
.steps{list-style:none;counter-reset:s;display:grid;gap:16px;margin-top:26px}
.steps li{counter-increment:s;display:flex;gap:16px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.steps li::before{content:counter(s);flex:none;width:34px;height:34px;border-radius:10px;background:rgba(255,138,31,.14);color:var(--or);font-weight:800;display:grid;place-items:center}
.steps p{color:var(--muted);font-size:.93rem}
/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-5px);border-color:rgba(255,138,31,.5);box-shadow:0 20px 40px -22px rgba(255,138,31,.45)}
.card p{color:var(--muted);font-size:.94rem}
.ico{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:rgba(255,138,31,.12);font-size:1.4rem;margin-bottom:16px}
/* showcase */
.showcase{background:var(--bg2);border-block:1px solid var(--line)}
.rail{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;padding:34px 22px 18px;margin:0 -22px;scrollbar-width:thin}
.rail figure{flex:none;scroll-snap-align:center;width:min(250px,64vw);text-align:center}
.rail figcaption{margin-top:14px;font-weight:700;font-size:.92rem}
.rail figcaption small{display:block;color:var(--muted);font-weight:400;font-size:.8rem}
.rail .phone{width:100%;padding:8px;border-radius:30px}.rail .phone img{border-radius:22px}
.vgrid{display:grid;grid-template-columns:1fr 1fr;gap:34px;max-width:760px;margin:36px auto 0}
.vgrid .phone{width:min(250px,70vw)}.vgrid p{text-align:center;margin-top:16px;font-weight:700}
.vgrid p small{display:block;color:var(--muted);font-weight:400}
/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}
.stat{text-align:center;padding:26px 12px;background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
.stat b{display:block;font-size:2.4rem;font-weight:800;color:var(--or)}
.stat span{color:var(--muted);font-size:.88rem}
.bars{display:flex;align-items:flex-end;gap:12px;height:150px;margin-top:26px}
.bars i{flex:1;border-radius:8px 8px 0 0;background:linear-gradient(var(--or),#c2410c);height:0;transition:height 1.1s cubic-bezier(.2,.8,.2,1)}
.in .bars i{height:var(--h)}
/* posts */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.post{display:flex;flex-direction:column;color:var(--text)}
.post:hover{text-decoration:none}
.post .tag{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--or);margin-bottom:10px}
.post h3{font-size:1.1rem}.post p{flex:1}
.post .more{margin-top:16px;font-weight:700;color:var(--or2);font-size:.9rem}
/* cta */
.cta{text-align:center;background:radial-gradient(70% 90% at 50% 0,rgba(255,138,31,.22),transparent 70%),var(--bg2);border-block:1px solid var(--line)}
.cta .lead{margin:0 auto}.cta .cta-row{justify-content:center}
/* faq */
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-top:12px}
summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:14px}
summary::after{content:"+";color:var(--or);font-size:1.3rem;line-height:1}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin-top:10px;font-size:.95rem}
/* footer */
footer{padding:50px 0;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line)}
footer .wrap{display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between}
footer a{color:var(--muted);margin-right:18px}footer a:hover{color:var(--or2)}
/* reveal */
.js .rv{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.js .rv.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}
/* article */
.article{padding:130px 0 70px}
.article .wrap{max-width:760px}
.article h1{font-size:clamp(2rem,4.6vw,3rem);margin-bottom:14px}
.meta{color:var(--muted);font-size:.9rem;margin-bottom:34px}
.article h2{font-size:1.6rem;margin:42px 0 12px}
.article p,.article li{color:#d4d4d8;margin-bottom:16px;font-size:1.04rem}
.article ul,.article ol{padding-left:22px;margin-bottom:16px}
.article table{width:100%;border-collapse:collapse;margin:20px 0 26px;font-size:.93rem}
.article th,.article td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.article th{background:var(--card);color:var(--or2)}
.formula{background:var(--card);border-left:3px solid var(--or);border-radius:8px;padding:14px 18px;margin:20px 0;font-family:ui-monospace,Consolas,monospace;font-size:.98rem;overflow-x:auto}
.callout{background:rgba(255,138,31,.08);border:1px solid rgba(255,138,31,.3);border-radius:12px;padding:18px 20px;margin:28px 0}
.callout p{margin:0}
@media(max-width:900px){
 .hero .wrap,.split{grid-template-columns:minmax(0,1fr)}.hero{padding-top:118px}
 .features,.posts{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}
 .chip.a{left:0}.chip.b{right:0}
}
@media(max-width:640px){
 nav.top ul{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--bg);padding:18px 22px;border-bottom:1px solid var(--line);gap:16px}
 nav.top ul.open{display:flex}.burger{display:block}.lang{margin-left:0}
 .features,.posts,.vgrid{grid-template-columns:minmax(0,1fr)}section{padding:68px 0}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}html{scroll-behavior:auto}}
.wl{max-width:520px;margin:34px auto 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.wl input[type=email]{flex:1 1 240px;background:var(--card);border:1px solid var(--line);color:var(--text);border-radius:12px;padding:13px 16px;font:inherit}
.wl input[type=email]:focus{outline:2px solid var(--or);border-color:transparent}
.wl .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.wl small{flex-basis:100%;color:var(--muted);font-size:.8rem}
.wl-msg:empty{display:none}
.wl-msg{flex-basis:100%;font-weight:700;font-size:.92rem}
.wl-msg.ok{color:var(--grn)}.wl-msg.err{color:var(--red)}
.i{width:26px;height:26px;color:var(--or)}
.ico{width:50px;height:50px}
.brand img{border-radius:8px;object-fit:cover}
.by{display:flex;align-items:center;gap:12px;margin-top:16px;color:var(--muted);font-size:.8rem}
.by img{width:auto;height:44px;opacity:.9}
.phone video,.phone img{aspect-ratio:auto;object-fit:cover}
.rail .phone img,.vgrid .phone img{height:auto}

.hero .wrap>*,.split>*,.features>*,.posts>*,.vgrid>*,.stats>*{min-width:0}
.hero h1{overflow-wrap:break-word}
@media(max-width:640px){.chip{display:none}.cta-row .btn{flex:1 1 100%;justify-content:center}.ring{width:min(300px,80vw)}.legend{gap:8px}.vgrid .phone{width:min(240px,70vw)}.stats{gap:12px}}

/* --- plainer look (v2): fewer effects, solid colours, tabs --- */
h1{font-weight:700;letter-spacing:-.015em}h2{font-weight:700}
.acc,.grad{color:var(--or);background:none;-webkit-text-fill-color:currentColor}
.btn{background:var(--or);box-shadow:none;border-radius:8px}
.btn:hover{transform:none;box-shadow:none;background:var(--or2)}
.btn.ghost{background:transparent}
.card{border-radius:10px}.card:hover{transform:none;box-shadow:none;border-color:#4a4a52}
.phone.float,.chip,.dot{animation:none}
.phone{box-shadow:0 24px 50px -24px #000,0 0 0 1px #3a3a42;border-radius:34px}
.hero::before{background:radial-gradient(55% 45% at 80% 20%,rgba(255,138,31,.10),transparent 70%)}
.badge{background:none;border-color:var(--line);color:var(--muted);font-weight:600}
.ring .seg{filter:none}
.ico{background:#26262b;border-radius:10px}
.eyebrow{letter-spacing:.1em}
.hero{padding:120px 0 56px}
.hero .wl{margin:26px 0 0;justify-content:flex-start;max-width:470px}
.hero .wl small{text-align:left}
.tabbar{position:sticky;top:64px;z-index:40;background:rgba(13,13,15,.92);backdrop-filter:blur(10px);border-block:1px solid var(--line)}
.tabbar .wrap{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.tabbar .wrap::-webkit-scrollbar{display:none}
.tabbar button{flex:none;background:none;border:0;border-bottom:3px solid transparent;color:var(--muted);font:600 .95rem/1 inherit;padding:17px 16px;cursor:pointer;font-family:inherit}
.tabbar button:hover{color:var(--text)}
.tabbar button.on{color:var(--text);border-bottom-color:var(--or)}
.panel{padding:64px 0 76px}
.panel[hidden]{display:none}
.panel.showcase{background:none;border:0}
.panel .rv{opacity:1;transform:none}
.js .panel .rv{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.js .panel .rv.in{opacity:1;transform:none}
@media(max-width:640px){.panel{padding:44px 0 56px}.hero{padding-top:96px}.tabbar{top:64px}}