*{margin:0;padding:0;box-sizing:border-box}
:root{--brand:#4f6bff;--brand2:#7b3ff2;--accent:#00c2ff;--dark:#0b1020;--dark2:#131a30;--txt:#1c2340;--muted:#5a6478;--line:#e8ecf6;--bg:#f6f8fd;--card:#ffffff;--grad:linear-gradient(135deg,#4f6bff 0%,#7b3ff2 100%);--grad2:linear-gradient(135deg,#00c2ff 0%,#4f6bff 100%);--r:18px;--r-sm:12px;--shadow:0 8px 30px rgba(20,30,80,.08);--shadow-lg:0 20px 60px rgba(20,30,80,.14)}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--txt);background:var(--bg);line-height:1.7;font-size:16px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input,select{font-family:inherit;font-size:inherit;outline:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 60px}
.tag{display:inline-block;padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;color:var(--brand);background:rgba(79,107,255,.1);margin-bottom:18px;letter-spacing:.5px}
.h2{font-size:38px;line-height:1.25;font-weight:800;letter-spacing:-.5px}
.section-head p{color:var(--muted);margin-top:16px;font-size:16px}
.hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:999px;font-weight:700;font-size:16px;cursor:pointer;border:none;transition:transform .25s,box-shadow .25s,background .25s;white-space:nowrap}
.btn:hover{transform:translateY(-3px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(79,107,255,.4)}
.btn-primary:hover{box-shadow:0 16px 36px rgba(79,107,255,.5)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--line);box-shadow:var(--shadow)}
.btn-ghost:hover{border-color:var(--brand)}
.btn-lg{padding:16px 38px;font-size:17px}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-block{width:100%}
.topbar{position:fixed;top:0;left:0;right:0;z-index:1000;transition:background .3s,box-shadow .3s,padding .3s;padding:16px 0}
.topbar.scrolled{background:rgba(11,16,32,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 6px 30px rgba(0,0,0,.25);padding:10px 0}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#fff}
.logo img{width:34px;height:34px;border-radius:8px}
.logo .en{font-size:12px;font-weight:600;color:rgba(255,255,255,.7);letter-spacing:1px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:6px}
.nav>li{position:relative}
.nav>li>a{display:flex;align-items:center;gap:6px;color:rgba(255,255,255,.86);font-weight:600;font-size:15px;padding:10px 16px;border-radius:10px;transition:color .2s,background .2s}
.nav>li>a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav>li>a .arr{display:inline-block;transition:transform .3s;font-size:11px}
.nav>li:hover>a .arr{transform:rotate(180deg)}
.nav>li.has-drop:hover .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop{position:absolute;top:100%;left:0;min-width:220px;background:#fff;border-radius:var(--r-sm);box-shadow:0 18px 50px rgba(0,0,0,.18);padding:10px;opacity:0;visibility:hidden;transform:translateY(10px);transition:.28s}
.drop a{display:block;padding:11px 16px;border-radius:9px;color:var(--txt);font-weight:600;font-size:14px;transition:background .2s,color .2s}
.drop a:hover{background:rgba(79,107,255,.08);color:var(--brand)}
.topbar-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.burger span{width:24px;height:2.5px;background:#fff;border-radius:2px;transition:.3s}
.hero{position:relative;background:radial-gradient(1200px 600px at 80% -10%,rgba(123,63,242,.35),transparent 60%),radial-gradient(900px 500px at 10% 10%,rgba(0,194,255,.25),transparent 55%),linear-gradient(150deg,#0b1020 0%,#151c38 55%,#1a1240 100%);color:#fff;padding:170px 0 110px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:34px 34px;opacity:.5}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);font-size:13px;font-weight:600;margin-bottom:24px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#2dd36f;box-shadow:0 0 0 4px rgba(45,211,111,.3);animation:blink 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:52px;line-height:1.15;font-weight:900;letter-spacing:-1px;margin-bottom:22px}
.hero h1 .hl{background:linear-gradient(135deg,#00c2ff,#7b9bff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:18px;color:rgba(255,255,255,.75);max-width:520px;margin-bottom:34px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero-btns .btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.25);color:#fff}
.hero-btns .btn-ghost:hover{border-color:#fff}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hero-stats .st{text-align:left}
.hero-stats .st b{display:block;font-size:30px;font-weight:800;background:linear-gradient(135deg,#00c2ff,#8ec5ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats .st span{font-size:13px;color:rgba(255,255,255,.6)}
.demo-wrap{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:18px;backdrop-filter:blur(12px)}
.demo-panel{background:#0d1326;border-radius:14px;padding:18px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05)}
.demo-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.demo-head .win-dots{display:flex;gap:6px}
.demo-head .win-dots i{width:10px;height:10px;border-radius:50%;display:block}
.demo-head .win-dots i:nth-child(1){background:#ff5f57}.demo-head .win-dots i:nth-child(2){background:#febc2e}.demo-head .win-dots i:nth-child(3){background:#28c840}
.demo-head .demo-title{font-size:13px;color:rgba(255,255,255,.5)}
.gauge{position:relative;width:160px;height:160px;margin:0 auto 12px}
.gauge svg{transform:rotate(-90deg);width:100%;height:100%}
.gauge .track{fill:none;stroke:rgba(255,255,255,.08);stroke-width:14}
.gauge .bar{fill:none;stroke:url(#gaugeGrad);stroke-width:14;stroke-linecap:round;stroke-dasharray:565;stroke-dashoffset:565;transition:stroke-dashoffset .8s ease}
.gauge .num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.gauge .num b{font-size:36px;font-weight:900;line-height:1}
.gauge .num small{color:rgba(255,255,255,.5);font-size:12px;margin-top:4px}
.demo-metrics{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.demo-metrics .m{background:rgba(255,255,255,.05);border-radius:10px;padding:10px;text-align:center}
.demo-metrics .m b{display:block;font-size:18px;font-weight:800;color:#8ec5ff}
.demo-metrics .m span{font-size:11px;color:rgba(255,255,255,.55)}
.demo-node{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.05);border-radius:10px;padding:9px 12px;margin-bottom:12px}
.demo-node select{flex:1;background:transparent;border:none;color:#fff;font-weight:600;cursor:pointer;font-size:13px}
.demo-node select option{color:#111;background:#fff}
.demo-connect{width:100%;padding:11px;border-radius:10px;border:none;font-weight:700;font-size:14px;cursor:pointer;transition:.25s;background:var(--grad);color:#fff}
.demo-connect.connected{background:linear-gradient(135deg,#22c55e,#16a34a)}
.demo-toggles{display:flex;gap:8px;margin-top:10px}
.demo-toggles button{flex:1;padding:7px;border-radius:8px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.04);color:rgba(255,255,255,.7);font-size:11px;font-weight:600;cursor:pointer;transition:.2s}
.demo-toggles button.on{background:rgba(79,107,255,.3);border-color:var(--brand);color:#fff}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border-radius:var(--r);padding:30px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border:1px solid var(--line)}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.card .ic{width:58px;height:58px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;background:linear-gradient(135deg,rgba(79,107,255,.12),rgba(123,63,242,.12));color:var(--brand)}
.card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.features .cards{grid-template-columns:repeat(4,1fr)}
.features .card{padding:26px}
.nodes{background:var(--dark);color:#fff;position:relative;overflow:hidden}
.nodes::before{content:"";position:absolute;inset:0;background:radial-gradient(800px 400px at 50% 0%,rgba(79,107,255,.25),transparent 60%)}
.nodes .section-head .tag{background:rgba(0,194,255,.15);color:#7dd7ff}
.nodes .section-head p{color:rgba(255,255,255,.6)}
.nodes-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.node-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-sm);padding:20px;text-align:center;transition:.3s}
.node-card:hover{background:rgba(255,255,255,.1);transform:translateY(-5px)}
.node-card .flag{font-size:30px;margin-bottom:8px}
.node-card b{display:block;font-size:15px}
.node-card span{font-size:12px;color:rgba(255,255,255,.55)}
.node-card .ping{display:inline-block;margin-top:8px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(45,211,111,.15);color:#2dd36f}
.speed{background:var(--bg)}
.speed-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.speed-visual{background:var(--card);border-radius:var(--r);padding:34px;box-shadow:var(--shadow);border:1px solid var(--line)}
.speed-bar-row{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.speed-bar-row .lbl{width:90px;font-size:13px;font-weight:600;color:var(--muted);flex-shrink:0}
.speed-bar-row .bar{flex:1;height:12px;background:var(--line);border-radius:99px;overflow:hidden}
.speed-bar-row .bar i{display:block;height:100%;border-radius:99px;background:var(--grad2);width:0;transition:width 1.2s ease}
.speed-bar-row .val{width:64px;text-align:right;font-weight:700;font-size:14px}
.speed-points li{display:flex;gap:14px;align-items:flex-start;margin-bottom:18px}
.speed-points li .ic{width:42px;height:42px;border-radius:11px;background:rgba(79,107,255,.1);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.speed-points h4{font-size:16px;margin-bottom:4px}
.speed-points p{color:var(--muted);font-size:14px}
.protocol{background:linear-gradient(160deg,#0d1226,#1a1240);color:#fff}
.protocol .section-head p{color:rgba(255,255,255,.6)}
.proto-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proto-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--r);padding:28px;transition:.3s}
.proto-card:hover{background:rgba(255,255,255,.09);transform:translateY(-6px)}
.proto-card .ic{font-size:32px;margin-bottom:14px}
.proto-card h3{font-size:18px;margin-bottom:10px}
.proto-card p{color:rgba(255,255,255,.65);font-size:14px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;counter-reset:step}
.step{background:var(--card);border-radius:var(--r);padding:30px;box-shadow:var(--shadow);border:1px solid var(--line);position:relative;text-align:center}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-18px;left:50%;transform:translateX(-50%);width:40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(79,107,255,.4)}
.step .ic{font-size:30px;margin:10px 0 12px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}
.scenarios{background:var(--bg)}
.scenarios .cards{grid-template-columns:repeat(3,1fr)}
.scenario-card{position:relative;overflow:hidden;background:var(--card);border-radius:var(--r);padding:28px;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s;cursor:pointer}
.scenario-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg)}
.scenario-card .ic{font-size:32px;margin-bottom:14px}
.scenario-card h3{font-size:18px;margin-bottom:8px}
.scenario-card p{color:var(--muted);font-size:14px}
.pricing .cards{grid-template-columns:repeat(3,1fr);align-items:stretch}
.price-card{position:relative;background:var(--card);border-radius:var(--r);padding:36px;box-shadow:var(--shadow);border:1.5px solid var(--line);display:flex;flex-direction:column}
.price-card.hot{border-color:var(--brand);transform:scale(1.03);box-shadow:0 24px 60px rgba(79,107,255,.22);z-index:2}
.price-card .ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px;white-space:nowrap}
.price-card .name{font-size:15px;font-weight:700;color:var(--muted);margin-bottom:6px}
.price-card .amount{font-size:44px;font-weight:900;letter-spacing:-1px}
.price-card .amount small{font-size:15px;color:var(--muted);font-weight:600}
.price-card .period{font-size:13px;color:var(--muted);margin-bottom:24px}
.price-card ul{flex:1;margin-bottom:26px}
.price-card ul li{display:flex;align-items:center;gap:10px;padding:9px 0;font-size:14px;border-bottom:1px dashed var(--line)}
.price-card ul li::before{content:"✓";color:#22c55e;font-weight:800}
.faq{background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:14px;overflow:hidden;transition:.3s}
.faq-item.open{box-shadow:var(--shadow);border-color:rgba(79,107,255,.4)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;cursor:pointer;font-weight:700;font-size:16px}
.faq-q .ic{width:28px;height:28px;border-radius:50%;background:rgba(79,107,255,.1);color:var(--brand);display:flex;align-items:center;justify-content:center;transition:transform .3s;flex-shrink:0;font-size:18px}
.faq-item.open .faq-q .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-a-inner ol{padding-left:20px;list-style:decimal}
.faq-a-inner ol li{margin:6px 0}
.testimonials{background:linear-gradient(160deg,#0d1226,#1a1240);color:#fff}
.testimonials .section-head p{color:rgba(255,255,255,.6)}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testi{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:28px;transition:.3s}
.testi:hover{background:rgba(255,255,255,.1)}
.testi .stars{color:#fbbf24;margin-bottom:14px;letter-spacing:2px}
.testi p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:20px;min-height:64px}
.testi .who{display:flex;align-items:center;gap:12px}
.testi .av{width:42px;height:42px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px}
.testi .who b{display:block;font-size:14px}
.testi .who span{font-size:12px;color:rgba(255,255,255,.55)}
.news{background:var(--bg)}
.news .cards{grid-template-columns:repeat(3,1fr)}
.news-card{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.news-card img{width:100%;height:180px;object-fit:cover}
.news-card .body{padding:22px;display:flex;flex-direction:column;flex:1}
.news-card .meta{font-size:12px;color:var(--muted);margin-bottom:10px;display:flex;gap:12px}
.news-card h3{font-size:17px;line-height:1.45;margin-bottom:10px;font-weight:700}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{color:var(--muted);font-size:14px;flex:1;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .more{color:var(--brand);font-weight:700;font-size:14px}
.cta{position:relative;background:radial-gradient(900px 500px at 50% 0%,rgba(0,194,255,.3),transparent 60%),linear-gradient(150deg,#0b1020,#1a1240);color:#fff;padding:90px 0;text-align:center;overflow:hidden}
.cta h2{font-size:40px;font-weight:900;margin-bottom:18px}
.cta p{color:rgba(255,255,255,.7);max-width:560px;margin:0 auto 32px;font-size:16px}
.footer{background:#080b16;color:rgba(255,255,255,.65);padding:70px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:50px}
.footer .brand{color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer .brand img{width:32px;height:32px;border-radius:8px}
.footer .desc{font-size:14px;max-width:300px;line-height:1.8}
.footer h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer ul li{margin-bottom:12px}
.footer ul li a{font-size:14px;transition:color .2s}
.footer ul li a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:26px;text-align:center;font-size:13px;color:rgba(255,255,255,.45)}
.crumb{background:var(--dark);color:#fff;padding:150px 0 50px}
.crumb h1{font-size:38px;font-weight:900;margin-bottom:12px}
.crumb .path{font-size:14px;color:rgba(255,255,255,.6)}
.crumb .path a:hover{color:#fff}
.dl-hero{background:radial-gradient(1000px 500px at 80% -10%,rgba(123,63,242,.35),transparent 60%),linear-gradient(150deg,#0b1020,#1a1240);color:#fff;padding:170px 0 90px}
.dl-hero .hero-inner{grid-template-columns:1fr 1fr}
.dl-meta{display:flex;gap:28px;margin-top:30px;flex-wrap:wrap}
.dl-meta .m{text-align:center}
.dl-meta .m b{display:block;font-size:22px;font-weight:800;color:#8ec5ff}
.dl-meta .m span{font-size:12px;color:rgba(255,255,255,.55)}
.version{background:var(--bg)}
.version-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.v-card{background:var(--card);border-radius:var(--r);padding:30px;box-shadow:var(--shadow);border:1.5px solid var(--line);display:flex;flex-direction:column}
.v-card.hot{border-color:var(--brand);box-shadow:0 20px 50px rgba(79,107,255,.18)}
.v-card .vn{font-size:20px;font-weight:800;margin-bottom:4px}
.v-card .vs{font-size:13px;color:var(--muted);margin-bottom:16px}
.v-card ul{flex:1;margin-bottom:22px}
.v-card ul li{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:14px}
.v-card ul li::before{content:"✓";color:#22c55e;font-weight:800}
.sysreq{background:var(--bg)}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.req-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);padding:22px;text-align:center;box-shadow:var(--shadow)}
.req-item .ic{font-size:28px;margin-bottom:10px}
.req-item b{display:block;font-size:15px;margin-bottom:4px}
.req-item span{font-size:13px;color:var(--muted)}
.news-layout{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:24px}
.news-item{display:flex;gap:22px;background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s}
.news-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.news-item img{width:260px;height:170px;object-fit:cover;flex-shrink:0}
.news-item .body{padding:22px;flex:1}
.news-item .meta{font-size:12px;color:var(--muted);margin-bottom:8px}
.news-item h3{font-size:19px;margin-bottom:8px;font-weight:700}
.news-item h3 a:hover{color:var(--brand)}
.news-item p{color:var(--muted);font-size:14px;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .more{color:var(--brand);font-weight:700;font-size:14px}
.sidebar{position:sticky;top:100px;display:flex;flex-direction:column;gap:22px}
.side-card{background:var(--card);border-radius:var(--r);padding:24px;box-shadow:var(--shadow);border:1px solid var(--line)}
.side-card h4{display:flex;align-items:center;gap:10px;font-size:16px;margin-bottom:18px;padding-left:12px;position:relative}
.side-card h4::before{content:"";position:absolute;left:0;top:2px;bottom:2px;width:4px;border-radius:4px;background:var(--grad)}
.toc-list{position:relative}
.toc-list::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--line)}
.toc-list li{position:relative;padding-left:26px;margin-bottom:14px}
.toc-list li::before{content:"";position:absolute;left:3px;top:6px;width:8px;height:8px;border-radius:50%;background:#cbd2e0;border:2px solid #fff;box-shadow:0 0 0 1px #cbd2e0;transition:.25s}
.toc-list li.active::before{background:var(--brand);box-shadow:0 0 0 1px var(--brand)}
.toc-list li a{font-size:14px;color:var(--muted);transition:.2s;line-height:1.5;display:block}
.toc-list li.active a{color:var(--brand);font-weight:700}
.rank-list li{display:flex;align-items:center;gap:12px;margin-bottom:14px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.rank-list li:last-child{border:none;margin:0;padding:0}
.rank-list .rk{width:26px;height:26px;border-radius:7px;background:#e6e9f2;color:var(--muted);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:.2s}
.rank-list li:nth-child(1) .rk{background:linear-gradient(135deg,#4f6bff,#7b3ff2);color:#fff}
.rank-list li:nth-child(2) .rk{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff}
.rank-list li:nth-child(3) .rk{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#fff}
.rank-list li a{font-size:14px;font-weight:600;line-height:1.45;transition:.2s}
.rank-list li:hover .rk{transform:scale(1.15)}
.rank-list li:hover a{color:var(--brand)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-list a{padding:7px 14px;border-radius:999px;background:var(--bg);border:1px solid var(--line);font-size:13px;color:var(--muted);font-weight:600;transition:.2s}
.tag-list a:hover{color:var(--brand);border-color:var(--brand)}
.article{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--line);padding:44px;overflow:hidden}
.article .art-meta{display:flex;gap:18px;color:var(--muted);font-size:13px;margin-bottom:20px;flex-wrap:wrap}
.article h1{font-size:32px;line-height:1.35;font-weight:900;margin-bottom:22px}
.article .lead{font-size:17px;color:#3a4356;line-height:1.9;margin-bottom:28px;padding:20px 24px;background:var(--bg);border-left:4px solid var(--brand);border-radius:10px}
.article h2{font-size:24px;font-weight:800;margin:34px 0 16px;scroll-margin-top:110px}
.article p{color:#3a4356;font-size:16px;line-height:1.95;margin-bottom:18px}
.article img{border-radius:var(--r-sm);margin:20px 0}
.article .art-quote{border-left:4px solid var(--brand2);padding:16px 20px;background:rgba(123,63,242,.06);border-radius:0 10px 10px 0;margin:24px 0;font-style:italic;color:#3a4356}
.article .data-block{background:linear-gradient(135deg,#0d1226,#1a1240);color:#fff;border-radius:var(--r-sm);padding:28px;margin:28px 0}
.article .data-block h3{font-size:18px;margin-bottom:18px;color:#8ec5ff}
.article .data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.article .data-grid .d{text-align:center}
.article .data-grid .d b{display:block;font-size:28px;font-weight:900;background:linear-gradient(135deg,#00c2ff,#8ec5ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.article .data-grid .d span{font-size:12px;color:rgba(255,255,255,.6)}
.art-nav{display:flex;justify-content:space-between;gap:16px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.art-nav a{font-size:14px;font-weight:600;color:var(--brand)}
.art-nav a:hover{text-decoration:underline}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.related .r{background:var(--card);border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line);transition:.25s}
.related .r:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.related .r img{height:90px;width:100%;object-fit:cover}
.related .r b{display:block;padding:12px 14px;font-size:14px;line-height:1.5}
.comments{margin-top:34px}
.comments h3{font-size:20px;margin-bottom:20px}
.comment{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.comment .av{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}
.comment .c-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.comment .c-head b{font-size:14px}
.comment .c-head span{font-size:12px;color:var(--muted)}
.comment p{font-size:14px;color:#3a4356;line-height:1.8;margin:0}
.sitemap-wrap{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--line);padding:44px}
.sitemap-group{margin-bottom:32px}
.sitemap-group h3{font-size:18px;margin-bottom:14px;padding-left:12px;border-left:4px solid var(--brand)}
.sitemap-group ul{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.sitemap-group ul li a{display:block;padding:10px 14px;border-radius:9px;background:var(--bg);font-size:14px;transition:.2s}
.sitemap-group ul li a:hover{color:var(--brand);background:rgba(79,107,255,.08)}
.e404{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;background:linear-gradient(150deg,#0b1020,#1a1240);color:#fff;padding:24px}
.e404-inner{max-width:560px}
.e404 .code{font-size:120px;font-weight:900;line-height:1;background:linear-gradient(135deg,#00c2ff,#7b3ff2);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.e404 h1{font-size:26px;margin:20px 0 12px}
.e404 p{color:rgba(255,255,255,.6);margin-bottom:30px}
.e404 .count{font-size:14px;color:rgba(255,255,255,.5);margin-top:24px}
@media(max-width:992px){.section{padding:70px 0}.hero{padding:140px 0 70px}.hero-inner,.speed-wrap,.dl-hero .hero-inner{grid-template-columns:1fr;gap:40px}.demo-wrap{max-width:520px;margin:0 auto}.hero h1{font-size:40px}.h2{font-size:32px}.cards,.features .cards,.scenarios .cards,.pricing .cards,.news .cards,.testi-grid,.proto-grid,.version-grid,.req-grid{grid-template-columns:repeat(2,1fr)}.nodes-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr);gap:34px 20px}.burger{display:flex}.nav{position:fixed;top:0;right:-100%;width:300px;height:100vh;background:var(--dark);flex-direction:column;align-items:flex-start;padding:90px 24px 24px;gap:4px;transition:right .35s;overflow-y:auto}.nav.open{right:0}.nav>li{width:100%}.nav>li>a{color:#fff;width:100%;justify-content:space-between}.drop{position:static;opacity:1;visibility:visible;transform:none;background:rgba(255,255,255,.06);box-shadow:none;padding:0;display:none}.nav>li.has-drop.open .drop{display:block}.drop a{color:rgba(255,255,255,.8)}.topbar-cta .btn{display:none}.news-layout{grid-template-columns:1fr}.sidebar{position:static;order:2}.article{padding:28px}.article h1{font-size:26px}.article .data-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.hero h1{font-size:32px}.h2{font-size:27px}.demo-wrap{padding:16px}.demo-panel{padding:16px}.cards,.features .cards,.scenarios .cards,.pricing .cards,.news .cards,.testi-grid,.proto-grid,.version-grid,.req-grid,.nodes-grid{grid-template-columns:1fr}.price-card.hot{transform:none}.news-item{flex-direction:column}.news-item img{width:100%;height:190px}.related{grid-template-columns:1fr}.sitemap-group ul{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.hero-stats{gap:24px}.article{padding:22px}.article h1{font-size:23px}.article h2{font-size:20px}}
@media(max-width:480px){.container{padding:0 16px}.hero h1{font-size:28px}.hero-sub{font-size:16px}.hero-btns .btn{width:100%}.btn-lg{padding:14px 26px}.section{padding:56px 0}.h2{font-size:24px}.gauge{width:140px;height:140px}.gauge .num b{font-size:28px}.demo-wrap{padding:10px}.demo-panel{padding:12px}.demo-toggles{flex-wrap:wrap}.demo-toggles button{min-width:calc(50% - 4px)}.demo-node{flex-direction:column;align-items:stretch;gap:8px}.steps{grid-template-columns:1fr}.dl-meta{gap:18px}.demo-metrics{grid-template-columns:1fr}}