:root{--bg:#0b0d1a;--bg2:#111430;--card:#171a33;--card2:#1d2140;--line:#2a2f55;--txt:#e8eaf6;--muted:#9aa0c3;--p:#6c5ce7;--p2:#8a5cf6;--a:#00d4ff;--grad:linear-gradient(120deg,#6c5ce7,#8a5cf6 55%,#00d4ff);--gold:#f7b731;--ok:#2ee6a8;--warn:#ff6b6b;--r:16px;--sh:0 12px 40px rgba(5,6,20,.45)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-9999px;top:0;background:var(--p);color:#fff;padding:8px 14px;z-index:99;border-radius:0 0 8px 0}
.skip:focus{left:0}
.section{padding:88px 0}
.section-alt{background:var(--bg2)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-tag{display:inline-block;padding:5px 16px;border:1px solid rgba(108,92,231,.5);color:#b7aef5;border-radius:999px;font-size:13px;letter-spacing:1px;margin-bottom:14px}
.sec-head h2{font-size:34px;line-height:1.3;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15.5px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--a)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-size:15.5px;font-weight:600;border:0;transition:transform .2s,box-shadow .2s,background .2s;line-height:1.4}
.btn:active{transform:scale(.97)}
.btn-p{background:var(--grad);color:#fff;box-shadow:0 8px 26px rgba(108,92,231,.42)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(108,92,231,.55)}
.btn-o{background:transparent;color:var(--txt);border:1px solid var(--line)}
.btn-o:hover{border-color:var(--a);color:var(--a)}
.btn-s{background:rgba(0,212,255,.12);color:var(--a);border:1px solid rgba(0,212,255,.4)}
.btn-s:hover{background:rgba(0,212,255,.22)}
.top{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(11,13,26,.68);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.05);transition:background .25s}
html.js .top.scrolled{background:rgba(11,13,26,.92);border-bottom:1px solid rgba(108,92,231,.25)}
.nav{display:flex;align-items:center;height:68px;gap:8px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;letter-spacing:.5px;flex-shrink:0}
.logo img{width:34px;height:34px;border-radius:9px}
.logo b{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--a)}
.menu{display:flex;align-items:center;gap:4px}
.nav>nav{margin-left:auto}
.menu>li{position:relative}
.menu>li>a,.menu>li>summary{display:flex;align-items:center;gap:6px;padding:10px 14px;font-size:15px;color:#c9cdf0;border-radius:10px;cursor:pointer;list-style:none}
.menu>li>a:hover,.menu>li>summary:hover{color:#fff;background:rgba(255,255,255,.06)}
.menu details>summary::-webkit-details-marker{display:none}
.menu .arr{display:inline-block;transition:transform .25s;font-size:11px}
.menu details[open]>.arr,.menu details:hover>.arr{transform:rotate(180deg)}
html.js .menu details:hover>.arr{transform:rotate(180deg)}
.sub{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);min-width:196px;background:#fff;border-radius:14px;box-shadow:0 16px 44px rgba(0,0,0,.35);padding:10px;opacity:0;visibility:hidden;transition:.22s}
.menu details[open]>.sub,html.js .menu details:hover>.sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(-2px)}
.sub li a{display:block;padding:10px 14px;border-radius:9px;color:#2b2f4a;font-size:14.5px;white-space:nowrap}
.sub li a:hover{background:#f1efff;color:#5a4fd8}
.nav-cta{margin-left:10px}
.burger{display:none;margin-left:auto;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.05);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:2px;background:#e8eaf6;border-radius:2px;transition:.25s}
#navchk:checked~.menu{display:flex}
#navchk{position:absolute;opacity:0;pointer-events:none}
#navchk:checked~.burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
#navchk:checked~.burger span:nth-child(2){opacity:0}
#navchk:checked~.burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero{position:relative;padding:158px 0 90px;background:radial-gradient(1000px 480px at 80% -10%,rgba(108,92,231,.32),transparent 60%),radial-gradient(800px 420px at 12% 8%,rgba(0,212,255,.14),transparent 55%),var(--bg)}
.hero::after{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%236c5ce7' stroke-opacity='0.10'%3E%3Cpath d='M30 0v60M0 30h60'/%3E%3C/g%3E%3C/svg%3E");pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{font-size:47px;line-height:1.22;margin:18px 0 16px;letter-spacing:.5px}
.hero .lead{color:var(--muted);font-size:17px;max-width:520px;margin-bottom:30px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:36px}
.hero-meta{display:flex;gap:34px;flex-wrap:wrap}
.hm b{display:block;font-size:26px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--a)}
.hm span{color:var(--muted);font-size:13.5px}
.demo{border-radius:22px;background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--line);box-shadow:var(--sh);overflow:hidden}
.demo-top{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--line)}
.demo-top i{width:10px;height:10px;border-radius:50%;display:inline-block}
.demo-body{padding:26px 24px 30px}
.demo-loc{display:flex;align-items:center;justify-content:space-between;background:var(--bg2);border:1px solid var(--line);border-radius:13px;padding:13px 16px;margin-bottom:18px}
.demo-loc b{font-size:15px}
.demo-loc span{color:var(--muted);font-size:13px}
.gauge{position:relative;width:190px;height:190px;margin:6px auto 20px;border-radius:50%;background:conic-gradient(var(--a) 0 62%,rgba(255,255,255,.07) 62% 100%);display:flex;align-items:center;justify-content:center}
.gauge::before{content:"";position:absolute;inset:15px;border-radius:50%;background:var(--card)}
html.js .gauge.spin{animation:spinG 3s linear infinite}
.gauge-in{position:relative;text-align:center}
.gauge-in b{display:block;font-size:34px;line-height:1.1}
.gauge-in span{color:var(--muted);font-size:12.5px}
@keyframes spinG{to{transform:rotate(360deg)}}
.demo-stats{display:flex;gap:10px;margin-bottom:18px}
.ds{flex:1;background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:11px 8px;text-align:center}
.ds b{display:block;font-size:16.5px;color:var(--a)}
.ds span{color:var(--muted);font-size:11.5px}
.demo-toggle{display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:18px;font-size:13.5px;color:var(--muted)}
.switch{position:relative;width:44px;height:24px;background:var(--line);border-radius:99px;transition:.2s;flex-shrink:0}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#c9cdf0;transition:.2s}
input.sw:checked+.switch{background:var(--grad)}
input.sw:checked+.switch::after{left:23px;background:#fff}
input.sw{position:absolute;opacity:0}
.demo-connect{width:100%;padding:14px;border-radius:13px;border:0;background:var(--grad);color:#fff;font-size:16px;font-weight:700;letter-spacing:2px;transition:.2s}
.demo-connect:hover{box-shadow:0 10px 28px rgba(108,92,231,.5)}
.demo-connect:active{transform:scale(.98)}
html.js .demo-connect.connecting{background:var(--gold);color:#1d2140;pointer-events:none}
html.js .demo-connect.connected{background:var(--ok);color:#0b0d1a}
.demo-connect span{display:inline}
.demo-status{text-align:center;font-size:12.5px;color:var(--muted);margin-top:10px}
.grid-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;transition:transform .22s,border-color .22s,box-shadow .22s}
.card:hover{transform:translateY(-5px);border-color:rgba(108,92,231,.6);box-shadow:var(--sh)}
.card .ic{width:52px;height:52px;border-radius:14px;background:rgba(108,92,231,.16);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.card h3{font-size:17.5px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14px}
.nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.node{background:linear-gradient(150deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:var(--r);padding:20px;text-align:center}
.node .dot{width:12px;height:12px;border-radius:50%;display:inline-block;margin-bottom:10px}
.node b{display:block;font-size:17px;margin-bottom:2px}
.node span{color:var(--muted);font-size:13px}
.speed-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sp{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px 18px;text-align:center}
.sp b{font-size:30px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--a)}
.sp span{display:block;color:var(--muted);font-size:13.5px;margin-top:6px}
.proto{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.proto-item{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px 24px 26px;overflow:hidden}
.proto-item::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.proto-item h3{font-size:18px;margin-bottom:10px}
.proto-item p{color:var(--muted);font-size:14px}
.proto-item .tag{display:inline-block;margin-top:14px;padding:4px 12px;border-radius:99px;background:rgba(0,212,255,.1);color:var(--a);font-size:12.5px}
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene{position:relative;border-radius:var(--r);padding:28px 24px;background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--line);transition:.22s}
.scene:hover{transform:translateY(-4px);border-color:rgba(0,212,255,.5)}
.scene .em{font-size:30px;margin-bottom:12px}
.scene h3{font-size:17px;margin-bottom:8px}
.scene p{color:var(--muted);font-size:13.8px}
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{position:relative;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:34px 26px;display:flex;flex-direction:column}
.plan.hot{border:2px solid var(--p);background:linear-gradient(170deg,#1b1e45,#171a33);transform:scale(1.03);box-shadow:0 18px 50px rgba(108,92,231,.35)}
.plan .hot-tag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12.5px;padding:5px 18px;border-radius:99px;font-weight:700;letter-spacing:1px}
.plan h3{font-size:19px;margin-bottom:14px}
.plan .price{font-size:40px;font-weight:800;line-height:1}
.plan .price small{font-size:14px;font-weight:400;color:var(--muted)}
.plan ul{margin:22px 0 28px;flex:1}
.plan li{padding:8px 0 8px 28px;position:relative;font-size:14.5px;color:#c9cdf0;border-bottom:1px dashed rgba(255,255,255,.07)}
.plan li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
.faq{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:19px 22px;cursor:pointer;list-style:none;font-size:16px;font-weight:600}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--a);transition:.25s;flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .a{padding:0 22px 20px;color:var(--muted);font-size:14.5px}
.faq-item .a ol{padding-left:20px;margin-top:8px}
.faq-item .a ol li{list-style:decimal;margin-bottom:6px}
.testi{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.t-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.t-card .stars{color:var(--gold);letter-spacing:3px;font-size:15px;margin-bottom:12px}
.t-card p{color:#c9cdf0;font-size:14.2px;margin-bottom:18px}
.t-user{display:flex;align-items:center;gap:12px}
.t-user .av{width:42px;height:42px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;flex-shrink:0}
.t-user b{font-size:14.5px;display:block}
.t-user span{color:var(--muted);font-size:12.5px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.22s}
.news-card:hover{transform:translateY(-5px);border-color:rgba(108,92,231,.6);box-shadow:var(--sh)}
.news-card .cover{aspect-ratio:16/9;overflow:hidden;background:var(--bg2)}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .cover img{transform:scale(1.06)}
.news-card .nc-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.news-card .cat{font-size:12px;color:var(--a);margin-bottom:8px;letter-spacing:1px}
.news-card h3{font-size:16px;line-height:1.5;margin-bottom:10px}
.news-card p{color:var(--muted);font-size:13.5px;flex:1}
.news-card .nc-foot{margin-top:14px;color:var(--muted);font-size:12.5px}
.cta{position:relative;text-align:center;padding:92px 0;background:radial-gradient(700px 320px at 50% 0%,rgba(108,92,231,.4),transparent 65%),var(--bg2)}
.cta h2{font-size:36px;margin-bottom:14px}
.cta p{color:var(--muted);margin-bottom:30px;font-size:16px}
footer{background:#080a14;border-top:1px solid var(--line);padding:60px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.foot-brand p{color:var(--muted);font-size:13.8px;margin-top:14px;max-width:300px}
.foot-col h4{font-size:15.5px;margin-bottom:16px;color:#fff}
.foot-col a{display:block;color:var(--muted);font-size:14px;padding:5px 0}
.foot-col a:hover{color:var(--a)}
.foot-bar{border-top:1px solid rgba(255,255,255,.06);padding:20px 0;color:var(--muted);font-size:13px;text-align:center}
.crumb{background:var(--bg2);border-bottom:1px solid var(--line);padding:104px 0 22px}
.crumb .container{font-size:13.5px;color:var(--muted)}
.crumb a:hover{color:var(--a)}
.crumb b{color:#c9cdf0;font-weight:500}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.news-list .news-card{flex-direction:row}
.news-list .news-card .cover{flex:0 0 240px;aspect-ratio:auto;min-height:100%}
.news-list .news-card .nc-body{padding:18px}
.pager{display:flex;justify-content:center;gap:10px;margin-top:40px}
.pager span,.pager a{padding:9px 16px;border-radius:10px;border:1px solid var(--line);font-size:14px;color:var(--muted)}
.pager .cur{background:var(--grad);color:#fff;border-color:transparent}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start;padding:40px 0 80px}
.article{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:38px 40px;min-width:0}
.article h1{font-size:29px;line-height:1.4;margin-bottom:16px}
.art-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:13.5px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:24px}
.article .cover{margin-bottom:26px}
.article .cover img{border-radius:14px;width:100%}
.article h2{font-size:21.5px;margin:34px 0 14px;padding-left:14px;border-left:4px solid;border-image:var(--grad) 1;color:#fff;scroll-margin-top:96px}
.article p{color:#c9cdf0;font-size:15.2px;margin-bottom:16px;text-align:justify}
.article .fig{margin:22px 0}
.article .fig img{border-radius:14px;width:100%}
.article .fig span{display:block;text-align:center;color:var(--muted);font-size:12.5px;margin-top:8px}
.article blockquote{border-left:4px solid var(--p);background:rgba(108,92,231,.08);padding:16px 20px;border-radius:0 12px 12px 0;margin:22px 0;color:#e8eaf6;font-size:15px}
.article blockquote b{color:var(--a)}
.data-box{background:linear-gradient(150deg,rgba(108,92,231,.14),rgba(0,212,255,.08));border:1px solid rgba(108,92,231,.35);border-radius:14px;padding:22px 24px;margin:24px 0}
.data-box h3{font-size:16.5px;margin-bottom:14px;color:#fff}
.data-box ul{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 24px}
.data-box li{font-size:14.2px;color:#c9cdf0;padding-left:16px;position:relative}
.data-box li::before{content:"▸";position:absolute;left:0;color:var(--a)}
.side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--sh)}
.side-card h3{font-size:15.5px;padding-left:12px;border-left:3px solid var(--p);margin-bottom:16px;color:#fff}
.toc{position:relative}
.toc ul{position:relative;padding-left:18px}
.toc ul::before{content:"";position:absolute;left:4px;top:4px;bottom:4px;width:2px;background:var(--line)}
.toc li{position:relative;padding:7px 0 7px 14px}
.toc li::before{content:"";position:absolute;left:-18px;top:13px;width:9px;height:9px;border-radius:50%;background:var(--card);border:2px solid var(--line)}
.toc li.on::before{background:var(--p);border-color:var(--p)}
.toc a{font-size:13.8px;color:var(--muted);line-height:1.5}
.toc li.on a{color:var(--a);font-weight:700}
.toc li.on::before{background:var(--p)}
.rank{counter-reset:r}
.rank li{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.07)}
.rank li:last-child{border-bottom:0}
.rank .no{width:24px;height:24px;border-radius:7px;background:#3a3f66;color:#c9cdf0;font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .2s}
.rank li:nth-child(1) .no{background:var(--grad);color:#fff}
.rank li:nth-child(2) .no{background:linear-gradient(135deg,#ff9a3d,#f7b731);color:#fff}
.rank li:nth-child(3) .no{background:linear-gradient(135deg,#b08968,#d4a373);color:#fff}
.rank li:hover .no{transform:scale(1.15)}
.rank a{font-size:13.8px;color:#c9cdf0;line-height:1.45}
.rank li:hover a{color:var(--a)}
.tags{display:flex;flex-wrap:wrap;gap:9px}
.tags a{font-size:12.8px;color:var(--muted);border:1px solid var(--line);padding:6px 13px;border-radius:99px;transition:.2s}
.tags a:hover{color:var(--a);border-color:var(--a)}
.comments{margin-top:40px;padding-top:30px;border-top:1px solid var(--line)}
.comments h2{font-size:19px;border:0;padding:0;margin:0 0 22px}
.comment{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed rgba(255,255,255,.08)}
.comment:last-child{border-bottom:0}
.comment .av{width:40px;height:40px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:15px}
.comment .cb{flex:1}
.comment .cb b{font-size:14.2px;display:block}
.comment .cb time{color:var(--muted);font-size:12px}
.comment .cb p{color:#c9cdf0;font-size:13.8px;margin-top:6px;text-align:left}
.art-nav{display:flex;justify-content:space-between;gap:14px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.art-nav a{flex:1;background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:14px 18px;font-size:14px;color:#c9cdf0;transition:.2s}
.art-nav a:hover{border-color:var(--a);color:var(--a)}
.art-nav .next{text-align:right}
.art-nav span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}
.back-list{text-align:center;margin-top:18px}
.back-list a{color:var(--a);font-size:14px;border-bottom:1px dashed var(--a);padding-bottom:2px}
.relate{margin-top:40px;padding-top:30px;border-top:1px solid var(--line)}
.relate h2{font-size:19px;border:0;padding:0;margin:0 0 20px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rel-card{background:var(--bg2);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.2s}
.rel-card:hover{border-color:rgba(108,92,231,.6);transform:translateY(-3px)}
.rel-card .cover{aspect-ratio:16/9}
.rel-card .cover img{width:100%;height:100%;object-fit:cover}
.rel-card b{display:block;padding:12px 14px;font-size:13.6px;line-height:1.5;color:#c9cdf0}
.rel-card:hover b{color:var(--a)}
.dl-hero{padding:60px 0 80px}
.dl-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.dl-copy{min-width:0}
.dl-hero h1{font-size:40px;margin-bottom:14px;line-height:1.25}
.dl-hero .lead{color:var(--muted);font-size:16.5px;margin-bottom:28px;max-width:520px}
.dl-meta{display:flex;gap:28px;margin-bottom:30px;flex-wrap:wrap}
.dl-meta b{display:block;font-size:20px;color:var(--a)}
.dl-meta span{color:var(--muted);font-size:12.8px}
.ver-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.ver{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;gap:22px;align-items:flex-start}
.ver .v-ic{width:54px;height:54px;border-radius:15px;background:rgba(108,92,231,.16);display:flex;align-items:center;justify-content:center;font-size:26px;flex-shrink:0}
.ver h3{font-size:17.5px;margin-bottom:4px}
.ver .v-size{color:var(--muted);font-size:13px;margin-bottom:12px}
.ver ul li{font-size:13.6px;color:#c9cdf0;padding:3px 0 3px 20px;position:relative}
.ver ul li::before{content:"✓";position:absolute;left:0;color:var(--ok)}
.ver .v-btn{margin-top:16px}
.req{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.req-item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.req-item b{display:block;font-size:15.5px;margin-bottom:8px;color:#fff}
.req-item span{color:var(--muted);font-size:14px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:st}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px 20px 24px;text-align:center}
.step::before{counter-increment:st;content:counter(st);position:absolute;top:-16px;left:50%;transform:translateX(-50%);width:34px;height:34px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(108,92,231,.45)}
.step h3{font-size:16px;margin:10px 0 8px}
.step p{color:var(--muted);font-size:13.5px}
.sitemap .col{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sitemap .col>div{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.sitemap h3{font-size:17px;margin-bottom:14px;color:#fff}
.sitemap a{display:block;padding:7px 0;color:var(--muted);font-size:14.5px;border-bottom:1px dashed rgba(255,255,255,.06)}
.sitemap a:hover{color:var(--a)}
.e404{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 22px;background:radial-gradient(700px 400px at 50% 30%,rgba(108,92,231,.3),transparent 65%),var(--bg)}
.e404 .code{font-size:120px;font-weight:900;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--a)}
.e404 h1{font-size:24px;margin:16px 0 12px}
.e404 p{color:var(--muted);margin-bottom:26px}
html.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .6s,transform .6s}
html.js .reveal.on{opacity:1;transform:none}
@media (max-width:992px){
.menu{display:none;position:absolute;top:68px;left:0;right:0;background:rgba(13,15,32,.98);backdrop-filter:blur(16px);flex-direction:column;align-items:stretch;padding:14px;max-height:calc(100vh - 84px);overflow-y:auto;border-bottom:1px solid var(--line)}
.menu>li>a,.menu>li>summary{padding:14px 12px;font-size:16px}
.menu .sub{position:static;transform:none;min-width:0;opacity:1;visibility:visible;background:rgba(255,255,255,.05);box-shadow:none;margin:4px 0 8px}
.menu .sub li a{color:#c9cdf0;padding:10px 12px}
.menu .sub li a:hover{background:rgba(255,255,255,.08);color:#fff}
.burger{display:flex}
.nav-cta{margin:8px 0 4px;padding:9px 18px;font-size:14px}
.hero{padding:130px 0 70px}
.dl-hero{padding:96px 0 60px}
.hero-grid,.dl-hero-grid{grid-template-columns:1fr;gap:40px}
.hero h1{font-size:38px}
.dl-hero h1{font-size:34px}
.grid-cards,.nodes,.speed-panel{grid-template-columns:repeat(2,1fr)}
.scenes,.pricing,.testi,.news-grid,.proto,.req,.steps{grid-template-columns:1fr 1fr}
.plan.hot{transform:none}
.news-list{grid-template-columns:1fr}
.article-wrap{grid-template-columns:1fr}
.side{position:static;order:2}
.sitemap .col{grid-template-columns:1fr 1fr}
.ver-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
.hero h1{font-size:31px}
.dl-hero h1{font-size:28px}
.section{padding:64px 0}
.sec-head h2{font-size:27px}
.grid-cards,.nodes,.speed-panel,.scenes,.pricing,.testi,.news-grid,.proto,.req,.steps{grid-template-columns:1fr}
.news-list .news-card{flex-direction:column}
.news-list .news-card .cover{flex:0 0 auto;aspect-ratio:16/9}
.article{padding:26px 20px}
.article h1{font-size:24px}
.foot-grid{grid-template-columns:1fr 1fr}
.data-box ul{grid-template-columns:1fr}
.rel-grid{grid-template-columns:1fr}
.hero-meta{gap:22px}
}
@media (max-width:480px){
.container{padding:0 16px}
.nav-cta{padding:8px 14px;font-size:13.5px}
.dl-meta{gap:20px}
.hero h1{font-size:27px}
.hero-btns .btn{width:100%}
.hm b{font-size:22px}
.gauge{width:160px;height:160px}
.gauge-in b{font-size:28px}
.foot-grid{grid-template-columns:1fr}
.sitemap .col{grid-template-columns:1fr}
.e404 .code{font-size:88px}
.demo-stats{gap:6px}
}