:root{--brand:#2f6bff;--brand2:#00d4ff;--brand3:#7a5cff;--accent:#ff8a3d;--ink:#0e1526;--ink2:#1b2540;--muted:#5c6b8a;--line:#e6ebf5;--bg:#f6f8fd;--white:#fff;--dark:#0a1120;--dark2:#111c33;--radius:16px;--shadow:0 10px 30px rgba(17,38,86,.10);--shadow2:0 18px 44px rgba(17,38,86,.18);--grad:linear-gradient(135deg,#2f6bff,#00d4ff);--grad3:linear-gradient(135deg,#7a5cff,#2f6bff)}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--white);line-height:1.75;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;font-weight:800;letter-spacing:-.01em}
h1{font-size:2.6rem}h2{font-size:2rem}h3{font-size:1.2rem}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.section{padding:88px 0}
.section.alt{background:var(--bg)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);background:rgba(47,107,255,.1);padding:6px 14px;border-radius:999px;margin-bottom:16px}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:1.05rem;margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:1rem;cursor:pointer;border:2px solid transparent;transition:transform .2s,box-shadow .2s,background .2s;background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(47,107,255,.32);min-height:48px}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(47,107,255,.42)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);box-shadow:none}
.btn-outline:hover{background:rgba(255,255,255,.12);box-shadow:none}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);box-shadow:var(--shadow)}
.btn-sm{padding:10px 20px;font-size:.92rem;min-height:40px}
.btn-block{width:100%}
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g6{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow2)}
.card .ic{font-size:1.6rem;width:54px;height:54px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:linear-gradient(135deg,rgba(47,107,255,.12),rgba(0,212,255,.12));margin-bottom:16px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);margin:0;font-size:.95rem}
.nav{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(10,17,32,.55);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:background .3s,box-shadow .3s}
.nav.scrolled{background:rgba(9,15,29,.95);box-shadow:0 8px 26px rgba(0,0,0,.28)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.15rem;flex-shrink:0}
.brand img{height:28px;width:auto;max-width:168px;border-radius:0}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu>a,.nav-group-label{color:rgba(255,255,255,.86);font-weight:600;font-size:.95rem;padding:10px 14px;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:background .2s,color .2s}
.nav-menu>a:hover,.nav-group-label:hover{background:rgba(255,255,255,.12);color:#fff}
.nav-group{position:relative}
.arw{font-size:.7rem;transition:transform .25s;font-style:normal}
.nav-drop{position:absolute;top:100%;left:0;min-width:200px;background:#fff;border-radius:14px;box-shadow:0 20px 40px rgba(12,25,58,.2);padding:10px;display:none;flex-direction:column;gap:2px}
.nav-drop a{color:var(--ink2);padding:10px 14px;border-radius:10px;font-size:.93rem;font-weight:600}
.nav-drop a:hover{background:rgba(47,107,255,.09);color:var(--brand)}
.nav-cta{flex-shrink:0}
.nav-burger{display:none;flex-direction:column;gap:5px;justify-content:center;width:44px;height:44px;padding:0 10px;cursor:pointer;margin-left:auto;border-radius:10px}
.nav-burger span{display:block;height:2px;border-radius:2px;background:#fff;transition:transform .3s,opacity .3s}
.hero{position:relative;background:radial-gradient(1000px 600px at 82% 8%,rgba(0,212,255,.22),transparent 60%),radial-gradient(900px 600px at 8% 90%,rgba(122,92,255,.24),transparent 60%),linear-gradient(160deg,#0a1120 0%,#0d1830 55%,#0a1120 100%);color:#fff;padding:150px 0 96px;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:54px 54px;mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);-webkit-mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:3.1rem;margin-bottom:20px}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:1.12rem;color:rgba(255,255,255,.78);max-width:540px;margin-bottom:30px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:38px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap}
.hero-stats .hs strong{display:block;font-size:1.9rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.hero-stats .hs span{font-size:.86rem;color:rgba(255,255,255,.66)}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.tagpill{font-size:.82rem;padding:6px 12px;border:1px solid rgba(255,255,255,.22);border-radius:999px;color:rgba(255,255,255,.82);background:rgba(255,255,255,.06)}
.demo{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:22px;padding:22px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 30px 60px rgba(0,0,0,.4);max-width:440px;margin-left:auto}
.demo-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.demo-top b{font-size:1rem}
.demo-state{font-size:.78rem;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.12);color:rgba(255,255,255,.8);font-weight:700}
.demo-state .s-on{display:none}
#demoConn:checked~.demo-top .demo-state .s-off{display:none}
#demoConn:checked~.demo-top .demo-state .s-on{display:inline}
#demoConn:checked~.demo-top .demo-state{background:rgba(34,224,122,.18);color:#7ff0b4}
.demo-gauge{position:relative;width:190px;height:190px;margin:6px auto 16px;display:flex;align-items:center;justify-content:center}
.demo-ring{position:absolute;inset:0;border-radius:50%;background:conic-gradient(var(--brand2) 0deg,var(--brand) 250deg,rgba(255,255,255,.12) 250deg 360deg);transition:transform .9s cubic-bezier(.2,.8,.2,1);box-shadow:0 0 40px rgba(0,212,255,.35)}
.demo-ring::after{content:"";position:absolute;inset:12px;border-radius:50%;background:#0c1730}
.demo-gauge .val{position:relative;z-index:2;text-align:center}
.demo-gauge .val strong{display:block;font-size:2.6rem;line-height:1;font-weight:800;color:#fff}
.demo-gauge .val span{font-size:.78rem;color:rgba(255,255,255,.6)}
.demo-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;text-align:center;margin-bottom:16px}
.demo-metrics div{background:rgba(255,255,255,.07);border-radius:12px;padding:10px 4px}
.demo-metrics em{display:block;font-style:normal;font-weight:800;font-size:1.02rem;color:#fff}
.demo-metrics small{font-size:.7rem;color:rgba(255,255,255,.58)}
.demo-nodes{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.demo-nodes .chip{font-size:.8rem}
.demo-nodes input:checked+.chip{background:var(--grad);border-color:transparent;color:#fff;font-weight:700}
.chip{display:inline-block;padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.82);cursor:pointer;background:rgba(255,255,255,.05);transition:background .2s,color .2s}
.chip:hover{background:rgba(255,255,255,.14)}
.demo-connect{display:block;text-align:center;padding:14px;border-radius:14px;background:var(--grad);color:#fff;font-weight:800;cursor:pointer;min-height:50px;box-shadow:0 12px 26px rgba(47,107,255,.4);transition:transform .2s}
.demo-connect:hover{transform:translateY(-2px)}
.demo-connect .txt-on{display:none}
.demo-live{display:none}
.demo-speed{display:flex;justify-content:space-between;font-size:.85rem;color:rgba(255,255,255,.7);margin-bottom:14px}
.demo-speed b{color:#fff}
#demoConn:checked~.demo-connect{background:linear-gradient(135deg,#12b981,#00d4ff);box-shadow:0 12px 26px rgba(0,200,150,.36)}
#demoConn:checked~.demo-connect .txt-on{display:inline}
#demoConn:checked~.demo-connect .txt-off{display:none}
#demoConn:checked~.demo-speed .demo-live{display:inline}
#demoConn:checked~.demo-gauge .demo-ring{transform:rotate(60deg)}
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center;box-shadow:var(--shadow)}
.stat .ic{font-size:1.5rem}
.stat strong{display:block;font-size:2.1rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;margin:6px 0 2px}
.stat span{color:var(--muted);font-size:.9rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.node-panel{background:linear-gradient(160deg,#0d1830,#0a1120);border-radius:20px;padding:28px;color:#fff;box-shadow:var(--shadow2)}
.node-panel h3{color:#fff}
.node-row{display:flex;align-items:center;justify-content:space-between;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.node-row:last-child{border-bottom:0}
.node-row .nm{display:flex;align-items:center;gap:10px;font-weight:600}
.node-row .dot{width:9px;height:9px;border-radius:50%;background:#22e07a;box-shadow:0 0 10px #22e07a}
.node-row .ms{font-weight:800;color:var(--brand2)}
.node-row .bar{height:6px;border-radius:6px;background:rgba(255,255,255,.12);width:120px;overflow:hidden}
.node-row .bar i{display:block;height:100%;background:var(--grad)}
.speed-rows .sr{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px dashed var(--line);font-weight:600}
.speed-rows .sr:last-child{border-bottom:0}
.speed-rows .sr b{color:var(--brand)}
.proto-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.proto{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.proto .tag{font-size:.74rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--brand3)}
.proto h3{margin:8px 0 10px}
.proto p{color:var(--muted);font-size:.94rem;margin:0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:st}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px 26px;box-shadow:var(--shadow)}
.step .no{position:absolute;top:-20px;left:26px;width:44px;height:44px;border-radius:12px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem}
.step h3{margin-top:12px}
.step p{color:var(--muted);font-size:.94rem;margin:0}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px 28px;box-shadow:var(--shadow);display:flex;flex-direction:column;position:relative}
.price.hot{border:2px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;box-shadow:var(--shadow2);transform:translateY(-8px)}
.price .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:.78rem;font-weight:800;padding:6px 16px;border-radius:999px;white-space:nowrap}
.price h3{margin-bottom:6px}
.price .amt{font-size:2.6rem;font-weight:800;margin:6px 0 2px}
.price .amt small{font-size:.9rem;font-weight:600;color:var(--muted)}
.price ul{margin:18px 0 26px;flex:1}
.price li{padding:9px 0 9px 26px;position:relative;color:var(--ink2);font-size:.94rem;border-bottom:1px dashed var(--line)}
.price li:last-child{border-bottom:0}
.price li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}
.faq{max-width:860px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;box-shadow:var(--shadow);overflow:hidden}
.faq summary{cursor:pointer;padding:20px 56px 20px 24px;font-weight:700;position:relative;list-style:none;font-size:1.02rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--brand);font-weight:700;transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq .ans{padding:0 24px 22px;color:var(--muted);font-size:.95rem}
.faq .ans b{color:var(--ink2)}
.faq ol{margin:8px 0 0;padding-left:20px}
.faq ol li{margin-bottom:5px;color:var(--muted)}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.review .stars{color:#ffb020;letter-spacing:2px;margin-bottom:10px}
.review p{color:var(--ink2);font-size:.95rem}
.review .who{display:flex;align-items:center;gap:12px;margin-top:14px}
.review .av{width:42px;height:42px;border-radius:50%;background:var(--grad3);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.review .who b{display:block;font-size:.92rem}
.review .who small{color:var(--muted);font-size:.8rem}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow2)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card .nb{padding:22px}
.news-card .date{font-size:.8rem;color:var(--brand);font-weight:700}
.news-card h3{font-size:1.08rem;margin:8px 0 8px}
.news-card p{color:var(--muted);font-size:.92rem;margin:0 0 12px}
.news-card .more{color:var(--brand);font-weight:700;font-size:.9rem}
.cta{background:radial-gradient(700px 400px at 80% 20%,rgba(0,212,255,.28),transparent 60%),linear-gradient(135deg,#0a1120,#13244a);color:#fff;text-align:center;padding:80px 0}
.cta h2{font-size:2.3rem}
.cta p{color:rgba(255,255,255,.76);max-width:620px;margin:0 auto 28px}
.footer{background:#08101f;color:rgba(255,255,255,.7);padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer .fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.2rem;margin-bottom:14px}
.footer .fbrand img{height:28px;width:auto;max-width:168px;border-radius:0}
.footer p{font-size:.92rem}
.footer h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer li{margin-bottom:10px}
.footer li a{font-size:.93rem}
.footer li a:hover{color:var(--brand2)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.86rem}
.footer-bottom a:hover{color:var(--brand2)}
.totop{position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:0 12px 26px rgba(47,107,255,.4);z-index:50;border:0;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .3s}
.totop.show{opacity:1;pointer-events:auto}
.subhero{background:radial-gradient(700px 420px at 85% 10%,rgba(0,212,255,.22),transparent 60%),linear-gradient(160deg,#0a1120,#12203f);color:#fff;padding:132px 0 62px;text-align:center}
.subhero h1{font-size:2.5rem}
.subhero p{color:rgba(255,255,255,.76);max-width:660px;margin:0 auto}
.crumb{font-size:.86rem;color:rgba(255,255,255,.62);margin-bottom:14px}
.crumb a:hover{color:#fff}
.crumb span{color:rgba(255,255,255,.85)}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;padding:60px 0}
.article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:44px;box-shadow:var(--shadow);min-width:0}
.article h1{font-size:2.1rem;margin-bottom:14px}
.article .meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:.88rem;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:26px}
.article h2{font-size:1.5rem;margin:40px 0 16px;padding-left:14px;border-left:5px solid var(--brand);scroll-margin-top:90px}
.article .lead{background:linear-gradient(135deg,rgba(47,107,255,.07),rgba(0,212,255,.07));border-radius:14px;padding:22px;font-size:1.04rem;color:var(--ink2)}
.article p{color:#2b3550;font-size:1.02rem}
.article figure{margin:28px 0}
.article figure img{width:100%;border-radius:14px;box-shadow:var(--shadow)}
.article figcaption{text-align:center;color:var(--muted);font-size:.86rem;margin-top:10px}
.article blockquote{margin:24px 0;padding:18px 22px;background:var(--bg);border-left:4px solid var(--brand3);border-radius:0 12px 12px 0;color:var(--ink2);font-style:normal}
.article blockquote b{color:var(--brand3)}
.datatable{width:100%;border-collapse:collapse;margin:22px 0;font-size:.94rem}
.datatable th,.datatable td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.datatable th{background:var(--bg);font-weight:700}
.article-nav{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.article-nav a{font-weight:700;color:var(--brand);font-size:.94rem}
.related{margin-top:36px}
.related h3{margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-grid a{background:var(--bg);border-radius:12px;padding:16px;font-size:.9rem;font-weight:600;color:var(--ink2)}
.related-grid a:hover{color:var(--brand)}
.comments{margin-top:44px;border-top:1px solid var(--line);padding-top:30px}
.comments h3{margin-bottom:20px}
.comment{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.comment .cav{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}
.comment .cm b{font-size:.94rem}
.comment .cm small{color:var(--muted);font-size:.8rem;margin-left:8px}
.comment .cm p{margin:6px 0 0;font-size:.94rem;color:var(--muted)}
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:22px}
.scard{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.scard h3{font-size:1.02rem;padding-left:12px;border-left:4px solid var(--brand);margin-bottom:16px}
.toc-list{position:relative;padding-left:18px}
.toc-list::before{content:"";position:absolute;left:4px;top:6px;bottom:6px;width:2px;background:var(--line)}
.toc-list a{position:relative;display:block;padding:6px 0;font-size:.9rem;color:var(--muted)}
.toc-list a::before{content:"";position:absolute;left:-18px;top:14px;width:10px;height:10px;border-radius:50%;background:#fff;border:2px solid var(--line)}
.toc-list a.active{color:var(--brand);font-weight:700}
.toc-list a.active::before{background:var(--brand);border-color:var(--brand)}
.hot-list a{display:flex;gap:12px;padding:9px 0;font-size:.9rem;color:var(--ink2);align-items:flex-start}
.hot-list a:hover{color:var(--brand)}
.hot-list .rk{width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.76rem;font-weight:800;color:#fff;flex-shrink:0;background:#98a6c0}
.hot-list a:nth-child(1) .rk{background:var(--grad)}
.hot-list a:nth-child(2) .rk{background:linear-gradient(135deg,#ff9a3d,#ff6a3d)}
.hot-list a:nth-child(3) .rk{background:linear-gradient(135deg,#f5c542,#e0a800)}
.cats{display:flex;flex-wrap:wrap;gap:8px}
.cats span{font-size:.82rem;padding:6px 12px;border-radius:999px;border:1px solid var(--line);color:var(--muted);cursor:pointer;transition:.2s}
.cats span:hover{border-color:var(--brand);color:var(--brand)}
.page-head{padding:132px 0 20px;text-align:center}
.page-head h1{font-size:2.4rem}
.page-head p{color:var(--muted);max-width:640px;margin:0 auto}
.doc{padding:40px 0 80px}
.doc .article h2{border-left-color:var(--brand2)}
.doc .article h3{margin-top:26px}
.doc .article li{margin:8px 0;color:#2b3550}
.doc .article ul{padding-left:20px;list-style:disc}
.doc .article ol{padding-left:22px;list-style:decimal}
.sitemap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:20px}
.sitemap-grid .scard h3{border-left-color:var(--brand3)}
.sitemap-grid .scard li{margin:8px 0}
.sitemap-grid .scard a{font-size:.94rem;color:var(--brand)}
.sitemap-grid .scard a:hover{text-decoration:underline}
.errwrap{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:radial-gradient(700px 500px at 50% 20%,rgba(47,107,255,.18),transparent 60%),linear-gradient(160deg,#0a1120,#12203f);color:#fff;padding:100px 20px}
.errwrap .code{font-size:6rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.errwrap p{color:rgba(255,255,255,.75);max-width:520px}
.sysreq{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sysreq .sr{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:var(--shadow)}
.sysreq .sr b{display:block;color:var(--brand);font-size:.85rem;margin-bottom:4px}
.sysreq .sr span{color:var(--ink2);font-weight:600}
.ver-list{display:flex;flex-direction:column;gap:20px}
.ver{display:grid;grid-template-columns:1.4fr 2fr auto;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow)}
.ver h3{margin:0 0 4px}
.ver .vs{color:var(--muted);font-size:.9rem}
.ver ul{display:grid;grid-template-columns:1fr 1fr;gap:6px 18px}
.ver li{font-size:.9rem;color:var(--ink2);padding-left:20px;position:relative}
.ver li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}
@media(min-width:993px){.nav-group:hover .nav-drop,.nav-group:focus-within .nav-drop{display:flex}.nav-group:hover .arw,.nav-group:focus-within .arw{transform:rotate(180deg)}}
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}
@media(max-width:992px){
.hero-grid{grid-template-columns:1fr;gap:40px}
.demo{margin:0 auto;max-width:520px}
.hero h1{font-size:2.4rem}
.g3,.g4,.g6,.proto-grid,.steps,.price-grid,.reviews,.news-grid,.related-grid,.footer-grid,.sysreq,.sitemap-grid{grid-template-columns:repeat(2,1fr)}
.stats-band{grid-template-columns:repeat(2,1fr)}
.split{grid-template-columns:1fr;gap:32px}
.layout{grid-template-columns:1fr}
.sidebar{position:static}
.nav-burger{display:flex}
.nav-menu{position:fixed;top:68px;left:0;right:0;background:rgba(9,15,29,.98);flex-direction:column;align-items:stretch;padding:14px 20px 24px;gap:2px;display:none;max-height:calc(100vh - 68px);overflow:auto}
.nav-toggle:checked~.nav-menu{display:flex}
.nav-cta{display:none}
.nav-group-label{justify-content:space-between;width:100%;padding:14px}
.nav-drop{position:static;display:none;box-shadow:none;background:rgba(255,255,255,.06);padding:6px;margin:2px 0 8px}
.nav-drop a{color:rgba(255,255,255,.85)}
.nav-group input:checked~.nav-drop{display:flex}
.nav-group input:checked~.nav-group-label .arw{transform:rotate(180deg)}
.nav-menu>a{padding:14px}
.article{padding:32px}
.ver{grid-template-columns:1fr;gap:16px}
}
@media(max-width:768px){
.section{padding:64px 0}
.hero{padding:120px 0 72px}
.hero h1{font-size:2rem}
h2,.cta h2{font-size:1.6rem}
.g3,.g4,.g6,.proto-grid,.steps,.price-grid,.reviews,.news-grid,.related-grid,.footer-grid,.sysreq,.sitemap-grid,.ver ul{grid-template-columns:1fr}
.stats-band{grid-template-columns:repeat(2,1fr)}
.hero-stats{gap:24px}
.hero-stats .hs strong{font-size:1.55rem}
.price.hot{transform:none}
.article{padding:24px}
.article h1{font-size:1.7rem}
.article h2{font-size:1.3rem}
.layout{padding:36px 0}
.page-head{padding:118px 0 12px}
.subhero{padding:118px 0 48px}
.subhero h1{font-size:1.9rem}
}
@media(max-width:480px){
.hero h1{font-size:1.72rem}
.hero-btns .btn{width:100%}
.demo{padding:18px}
.demo-gauge{width:158px;height:158px}
.demo-gauge .val strong{font-size:2.1rem}
.stats-band{grid-template-columns:1fr}
.sec-head{margin-bottom:36px}
.article{padding:20px}
.btn{padding:12px 20px}
}