:root{--blue:#2f6fed;--blue-d:#1f55c4;--blue-l:#e8f0ff;--ink:#12182b;--ink2:#4a5470;--line:#e3e7f0;--bg:#fff;--soft:#f5f7fc;--card:#fff;--shadow:0 10px 30px rgba(20,35,80,.10);--r:16px}
@media(prefers-color-scheme:dark){:root{--blue:#6f9cff;--blue-d:#9ab9ff;--blue-l:#1b2745;--ink:#eef1fa;--ink2:#a9b3cf;--line:#262f48;--bg:#0d1220;--soft:#121a2d;--card:#141c31;--shadow:0 10px 30px rgba(0,0,0,.45)}}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1140px;margin:0 auto;padding:0 22px}
header.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
header.top .wrap{max-width:1240px;display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink)}.brand:hover{text-decoration:none}.brand img{width:34px;height:34px;border-radius:8px}
nav.main{display:flex;gap:4px;margin-left:12px;flex:1}nav.main a{white-space:nowrap;color:var(--ink2);padding:8px 9px;border-radius:9px;font-size:15px;font-weight:600}nav.main a:hover{background:var(--soft);text-decoration:none;color:var(--ink)}nav.main .navonly{display:none}nav.main a[aria-current=page]{color:var(--blue);background:var(--blue-l)}
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:11px;font-weight:700;font-size:16px;border:1.5px solid transparent;cursor:pointer;font-family:inherit;line-height:1.2}.btn:hover{text-decoration:none}
.btn-p{background:var(--blue);color:#fff}.btn-p:hover{background:var(--blue-d)}.btn-o{background:transparent;color:var(--ink);border-color:var(--line)}.btn-o:hover{border-color:var(--blue);color:var(--blue)}.btn-lg{padding:15px 28px;font-size:18px;border-radius:13px}
.actions{display:flex;gap:10px;align-items:center}.burger{display:none;background:none;border:1.5px solid var(--line);color:var(--ink);border-radius:10px;width:44px;height:44px;font-size:22px;cursor:pointer}
.hero{padding:70px 0 40px;background:radial-gradient(1200px 500px at 70% -10%,var(--blue-l),transparent 70%)}
.hero .grid{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.eyebrow{display:inline-block;color:var(--blue);background:var(--blue-l);font-weight:700;font-size:14px;padding:6px 12px;border-radius:99px;margin-bottom:18px}
h1{font-size:clamp(34px,5vw,54px);line-height:1.1;margin:0 0 18px;letter-spacing:-.02em}h2{font-size:clamp(26px,3.4vw,38px);line-height:1.2;margin:0 0 14px;letter-spacing:-.01em}h3{font-size:20px;margin:0 0 8px}
.lead{font-size:19px;color:var(--ink2);margin:0 0 26px;max-width:60ch}.cta{display:flex;gap:12px;flex-wrap:wrap}.note{color:var(--ink2);font-size:14px;margin-top:14px}
.shot{border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden;background:var(--card)}.shot img{width:100%}
section{padding:64px 0}section.alt{background:var(--soft)}.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}.cards.four{grid-template-columns:repeat(4,1fr)}.cards.two{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}.card p{margin:0;color:var(--ink2);font-size:16px}.card .ic{font-size:28px;margin-bottom:10px}.card ul{margin:10px 0 0;padding-left:18px;color:var(--ink2);font-size:16px}.card li{margin:4px 0}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}.step{position:relative;padding:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--r)}.step:before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;margin-bottom:12px}.step p{margin:0;color:var(--ink2);font-size:16px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.split.rev>:first-child{order:2}.split p{color:var(--ink2)}.split ul{padding-left:20px;color:var(--ink2)}.split li{margin:7px 0}
.phone{max-width:300px;margin:0 auto}.phone .shot{border-radius:30px;border:6px solid var(--ink)}
.band{background:linear-gradient(135deg,#2f6fed,#5b8cff);color:#fff;border-radius:24px;padding:48px;text-align:center}.band h2{color:#fff}.band p{color:#e4ecff;max-width:56ch;margin:0 auto 24px}.band .btn-p{background:#fff;color:#1f55c4}.band .btn-o{color:#fff;border-color:rgba(255,255,255,.55)}
.page-h{padding:56px 0 26px;background:radial-gradient(900px 380px at 80% -20%,var(--blue-l),transparent 70%)}.page-h p{color:var(--ink2);font-size:19px;max-width:70ch;margin:0}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0}.toc a{background:var(--card);border:1px solid var(--line);color:var(--ink2);padding:7px 13px;border-radius:99px;font-size:14px;font-weight:600}.toc a:hover{border-color:var(--blue);color:var(--blue);text-decoration:none}
.fgroup{margin:0 0 46px;scroll-margin-top:84px}.fgroup>h2{font-size:28px;border-bottom:2px solid var(--blue-l);padding-bottom:10px}.flist{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 28px;list-style:none;margin:18px 0 0;padding:0}.flist li{padding:12px 14px 12px 40px;position:relative;background:var(--card);border:1px solid var(--line);border-radius:12px;font-size:16px;color:var(--ink2)}.flist li:before{content:"✓";position:absolute;left:14px;top:11px;color:#fff;background:var(--blue);width:20px;height:20px;border-radius:50%;font-size:12px;display:grid;place-items:center;font-weight:800}.flist b{color:var(--ink)}
.limits{background:var(--soft);border:1px dashed var(--line);border-radius:var(--r);padding:20px 24px;color:var(--ink2);font-size:16px}.limits h3{color:var(--ink)}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:4px 20px;margin:10px 0}summary{cursor:pointer;font-weight:700;padding:14px 0;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:14px}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--blue);font-size:24px;line-height:1}details[open] summary:after{content:"–"}details p{margin:0 0 16px;color:var(--ink2)}
footer{background:var(--soft);border-top:1px solid var(--line);padding:44px 0 26px;margin-top:30px;font-size:15px}footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}footer h4{margin:0 0 10px;font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink2)}footer a{display:block;color:var(--ink);padding:3px 0}footer .small{color:var(--ink2);margin-top:26px;font-size:14px}
@media(max-width:1239px){nav.main{display:none;position:absolute;left:0;right:0;top:64px;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;padding:10px 16px;margin:0}nav.main.open{display:flex}nav.main a{padding:13px 12px;font-size:17px}.burger{display:block}.actions{margin-left:auto}header.top .wrap{gap:10px}}
@media(max-width:960px){.hero .grid,.split{grid-template-columns:1fr}.split.rev>:first-child{order:0}.cards,.cards.four{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}footer .cols{grid-template-columns:1fr 1fr}.hero{padding-top:40px}}
@media(max-width:620px){body{font-size:16px}.actions .btn-p{display:none}.actions .btn-o{background:var(--blue);color:#fff;border-color:var(--blue);padding:10px 18px}.navonly{display:block!important}.cards,.cards.four,.cards.two,.steps,.flist{grid-template-columns:1fr}section{padding:46px 0}.band{padding:34px 22px}.actions .btn-p{padding:10px 14px;font-size:15px}footer .cols{grid-template-columns:1fr}.btn-lg{width:100%}}

.tut{display:grid;grid-template-columns:250px 1fr;gap:44px;align-items:start}.tocside{position:sticky;top:84px;display:flex;flex-direction:column;gap:2px;max-height:calc(100vh - 100px);overflow:auto}.tocside a{color:var(--ink2);padding:8px 12px;border-radius:9px;font-size:15px;font-weight:600;border-left:3px solid transparent}.tocside a:hover{background:var(--soft);text-decoration:none;color:var(--ink)}.tocside a.on{color:var(--blue);background:var(--blue-l);border-left-color:var(--blue)}
.guide{scroll-margin-top:84px;margin:0 0 34px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px}.guide h2{font-size:26px;margin:0 0 6px;display:flex;gap:12px;align-items:center}.guide h2 .n{display:grid;place-items:center;min-width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;font-size:18px}.guide>p.intro{color:var(--ink2);margin:0 0 16px}
.howto{counter-reset:h;list-style:none;margin:16px 0 0;padding:0}.howto li{counter-increment:h;position:relative;padding:10px 0 10px 46px;color:var(--ink2);border-top:1px dashed var(--line)}.howto li:first-child{border-top:0}.howto li:before{content:counter(h);position:absolute;left:0;top:9px;width:30px;height:30px;border-radius:50%;background:var(--blue-l);color:var(--blue);font-weight:800;display:grid;place-items:center;font-size:15px}.howto b{color:var(--ink)}
.tip{background:var(--blue-l);border-radius:12px;padding:12px 16px;margin:16px 0 0;color:var(--ink);font-size:15.5px}.tip:before{content:"💡 ";}
kbd{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.85em;background:var(--soft);border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 7px;color:var(--ink)}
.guide .shot{margin:18px 0 0;max-width:640px}.guide .shot.ph{max-width:260px}
.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:26px 0 0}.quick a{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;color:var(--ink);font-weight:700;transition:transform .3s,border-color .3s}.quick a:hover{transform:translateY(-4px);border-color:var(--blue);text-decoration:none}.quick span{display:block;font-size:26px;margin-bottom:6px}
@media(max-width:960px){.tut{grid-template-columns:1fr}.tocside{display:none}.quick{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.guide{padding:20px}.guide h2{font-size:22px}}

@keyframes up{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(30px,-24px) scale(1.12)}}
@keyframes shimmer{to{background-position:200% center}}
@keyframes flow{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
@keyframes pop{0%{transform:scale(.4);opacity:0}70%{transform:scale(1.15)}100%{transform:scale(1);opacity:1}}
@keyframes slide{to{transform:translateX(-50%)}}
.hero,.page-h{position:relative;overflow:hidden}.hero:before,.page-h:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,var(--blue-l),transparent 70%);top:-120px;right:-80px;animation:drift 14s ease-in-out infinite;pointer-events:none;opacity:.9}
.hero:after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,140,100,.18),transparent 70%);bottom:-80px;left:-60px;animation:drift 18s ease-in-out infinite reverse;pointer-events:none}
.hero .wrap,.page-h .wrap{position:relative;z-index:1}
.hero-a{animation:up .9s cubic-bezier(.2,.7,.2,1) both;animation-delay:var(--d,0s)}
.hero .shot{animation:up 1s .35s cubic-bezier(.2,.7,.2,1) both,floaty 7s 1.4s ease-in-out infinite}
.hl{background:linear-gradient(90deg,var(--blue),#ff7a59,var(--blue));background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shimmer 5s linear infinite}
html.js .rv{opacity:0}
html.js .rv.in{opacity:1;animation:rvUp .75s cubic-bezier(.2,.7,.2,1) var(--d,0s) backwards}
html.js .rv.rv-l.in{animation-name:rvL}html.js .rv.rv-r.in{animation-name:rvR}html.js .rv.rv-z.in{animation-name:rvZ}
@keyframes rvUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}
@keyframes rvL{from{opacity:0;transform:translateX(-44px)}to{opacity:1;transform:none}}
@keyframes rvR{from{opacity:0;transform:translateX(44px)}to{opacity:1;transform:none}}
@keyframes rvZ{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:none}}
.card,.step,.flist li{transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s,border-color .35s}
.card:hover,.step:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue)}.flist li:hover{transform:translateX(4px);border-color:var(--blue)}
.card .ic{display:inline-block;transition:transform .4s cubic-bezier(.3,1.6,.5,1)}.card:hover .ic{transform:scale(1.25) rotate(-6deg)}
.step.in:before{animation:pop .6s .15s both}
.shot{transition:transform .5s cubic-bezier(.2,.7,.2,1),box-shadow .5s}.split .shot:hover{transform:scale(1.02)}
.btn{position:relative;overflow:hidden;transition:transform .2s,background .2s,box-shadow .2s,border-color .2s,color .2s}.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(47,111,237,.28)}.btn:active{transform:none}
.btn-p:after{content:"";position:absolute;top:0;left:-70%;width:50%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);transition:left .6s}.btn-p:hover:after{left:130%}
.band{background-size:220% 220%;animation:flow 10s ease infinite}
.marq{overflow:hidden;margin:30px 0 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marq .track{display:flex;gap:12px;width:max-content;animation:slide 38s linear infinite}.marq:hover .track{animation-play-state:paused}
.chip{white-space:nowrap;background:var(--card);border:1px solid var(--line);padding:10px 18px;border-radius:99px;font-weight:700;font-size:16px;color:var(--ink)}.chip span{margin-right:8px}
details{transition:border-color .3s,box-shadow .3s}details[open]{border-color:var(--blue);box-shadow:var(--shadow)}
.who{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}.who .card{padding:20px}.who h3{font-size:18px}
@media(max-width:960px){.who{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.who{grid-template-columns:1fr}.hero:before{width:260px;height:260px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}html.js .rv{opacity:1!important;transform:none!important}.marq .track{flex-wrap:wrap;width:auto}.marq{-webkit-mask-image:none;mask-image:none}}