:root{--bg:#060b18;--bg-soft:#0a1226;--panel:#0e1a33;--panel-2:#111f3d;--line:rgba(140,175,225,.16);--text:#e8f0ff;--muted:#93a7c6;--brand:#22d3ee;--brand2:#3b82f6;--lime:#a3e635;--danger:#fb7185;--radius:18px;--shadow:0 18px 45px rgba(3,8,20,.55)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.75;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(900px 520px at 82% -10%,rgba(34,211,238,.16),transparent 60%),radial-gradient(760px 480px at 6% 8%,rgba(59,130,246,.16),transparent 62%),linear-gradient(180deg,#060b18 0%,#070e1f 45%,#050915 100%)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.28;font-weight:800;letter-spacing:.2px}
p{color:#c7d5ea}
.container{width:min(1180px,92%);margin:0 auto}
section{position:relative}
.section{padding:84px 0}
.section-head{max-width:760px;margin:0 auto 46px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--brand);border:1px solid rgba(34,211,238,.35);background:rgba(34,211,238,.08);padding:6px 14px;border-radius:999px;margin-bottom:16px}
.section-head h2{font-size:clamp(26px,3.2vw,40px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}
.grad{background:linear-gradient(100deg,#7ff4ff,#22d3ee 42%,#5b8dff);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:999px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(96deg,#22d3ee,#3b82f6 72%);color:#03101f;box-shadow:0 12px 30px rgba(34,211,238,.28)}
.btn-primary:hover{box-shadow:0 16px 36px rgba(34,211,238,.38)}
.btn-ghost{border-color:rgba(140,175,225,.4);color:#dbebff;background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--brand);color:#fff;background:rgba(34,211,238,.1)}
.btn-block{width:100%}
.site-header{position:fixed;top:0;left:0;right:0;z-index:90;transition:background .3s,border-color .3s,box-shadow .3s;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(6,12,26,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px;flex-shrink:0}
.brand img{width:36px;height:36px;border-radius:9px;object-fit:cover;box-shadow:0 0 0 1px rgba(255,255,255,.12)}
.brand span{white-space:nowrap}
.nav{display:flex;align-items:center;gap:6px}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 13px;border-radius:10px;color:#cddcf1;font-size:15px;font-weight:600;transition:color .2s,background .2s}
.nav-link:hover,.nav-link:focus-visible{color:#fff;background:rgba(255,255,255,.06)}
.nav-group{position:relative}
.nav-toggle{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.caret{font-size:11px;color:var(--brand);transition:transform .25s}
.nav-group:hover .caret,.nav-group:focus-within .caret{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:230px;background:#0d1830;border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:0 24px 48px rgba(0,0,0,.5);opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s;z-index:95}
.nav-group:hover .dropdown,.nav-group:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:#c9d9ef;font-size:14px}
.dropdown a:hover{background:rgba(34,211,238,.1);color:#fff}
.dropdown a b{color:var(--brand);font-weight:700}
.nav-download{padding:0 20px;min-height:40px;font-size:14px;margin-left:8px}
.hamburger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);cursor:pointer;padding:12px 10px;flex-direction:column;justify-content:space-between}
.hamburger span{display:block;height:2px;background:#dbe9ff;border-radius:2px;transition:.25s}
.nav-switch{position:absolute;opacity:0;pointer-events:none}
.hero{padding:138px 0 70px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(32px,4.4vw,54px);letter-spacing:-.5px;margin-bottom:18px}
.hero-sub{font-size:17px;color:#b9cbe4;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:560px}
.hero-stat{background:linear-gradient(160deg,rgba(34,211,238,.09),rgba(59,130,246,.04));border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.hero-stat strong{display:block;font-size:24px;color:#fff;letter-spacing:.5px}
.hero-stat span{font-size:12.5px;color:var(--muted)}
.speed-panel{background:linear-gradient(165deg,#0d1a33,#0a1428 60%,#081020);border:1px solid rgba(120,190,230,.22);border-radius:22px;padding:20px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.speed-panel::after{content:"";position:absolute;inset:-40% -20% auto auto;width:280px;height:280px;background:radial-gradient(circle,rgba(34,211,238,.22),transparent 65%);pointer-events:none}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.panel-top strong{color:#fff;font-size:14px}
.status-dot{display:inline-flex;align-items:center;gap:7px;color:#8ef0c0;font-weight:700;font-size:12.5px}
.status-dot i{width:8px;height:8px;border-radius:50%;background:#34d399;box-shadow:0 0 0 4px rgba(52,211,153,.16)}
.gauge-wrap{display:flex;align-items:flex-end;justify-content:center;gap:6px;padding:12px 0 4px;position:relative}
.gauge{width:min(300px,86%);height:auto;display:block;overflow:visible}
.gauge .needle{transform-origin:100px 102px;transition:transform .8s cubic-bezier(.34,1.3,.4,1)}
.ping{position:absolute;left:50%;bottom:8px;transform:translateX(-50%);text-align:center;pointer-events:none}
.ping strong{display:block;font-size:40px;line-height:1;color:#fff;font-variant-numeric:tabular-nums}
.ping span{font-size:12px;color:var(--muted);letter-spacing:1px}
.speed-rows{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}
.speed-row{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:11px;padding:9px 10px;text-align:center}
.speed-row em{display:block;font-style:normal;font-size:11px;color:var(--muted);margin-bottom:2px}
.speed-row b{font-size:15px;color:#e9f4ff;font-variant-numeric:tabular-nums}
.speed-row b small{font-size:10px;color:var(--muted);font-weight:500}
.node-list{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.node-list label{font-size:12.5px;padding:7px 11px;border-radius:999px;border:1px solid var(--line);color:#c5d6ee;cursor:pointer;transition:.2s;min-height:32px;display:inline-flex;align-items:center;gap:5px}
.node-list input{position:absolute;opacity:0;pointer-events:none}
.node-list input:checked+label,.node-list label.on{border-color:var(--brand);color:#071726;background:linear-gradient(96deg,#22d3ee,#5b8dff);font-weight:700}
.node-list label:hover{border-color:rgba(34,211,238,.7);color:#fff}
.demo-check{position:absolute;opacity:0;pointer-events:none}
.demo-actions{display:flex;align-items:center;gap:10px}
.demo-connect{flex:1;min-height:44px;border-radius:12px;background:linear-gradient(96deg,#22d3ee,#3b82f6);color:#04121f;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;cursor:pointer;user-select:none;transition:.2s;border:none}
.demo-connect .on-text{display:none}
.demo-check:checked~.demo-actions .demo-connect{background:linear-gradient(96deg,#34d399,#22d3ee)}
.demo-check:checked~.demo-actions .demo-connect .off-text{display:none}
.demo-check:checked~.demo-actions .demo-connect .on-text{display:inline}
.demo-hint{font-size:11.5px;color:var(--muted);line-height:1.5;text-align:center;margin-top:9px;min-height:18px}
.switch-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 0;font-size:12.5px;color:#c2d3ea;border-top:1px solid rgba(140,175,225,.1)}
.switch-row:first-of-type{border-top:none}
.switch{position:absolute;opacity:0;pointer-events:none}
.switch-label{width:38px;height:21px;border-radius:999px;background:#22314d;position:relative;cursor:pointer;flex-shrink:0;transition:.2s;border:1px solid var(--line)}
.switch-label::after{content:"";position:absolute;top:2px;left:2px;width:15px;height:15px;border-radius:50%;background:#9fb3ce;transition:.2s}
.switch:checked+.switch-label{background:linear-gradient(96deg,#22d3ee,#3b82f6)}
.switch:checked+.switch-label::after{left:19px;background:#04121f}
.stats-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(9,17,34,.6)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:34px 0}
.stats-grid div{text-align:center;border-right:1px solid var(--line)}
.stats-grid div:last-child{border-right:none}
.stats-grid strong{display:block;font-size:clamp(24px,3vw,34px);color:#fff;font-variant-numeric:tabular-nums}
.stats-grid span{font-size:13px;color:var(--muted)}
.grid-3,.grid-4{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:linear-gradient(165deg,rgba(18,32,60,.92),rgba(10,19,38,.94));border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative}
.card:hover{transform:translateY(-5px);box-shadow:0 22px 44px rgba(2,9,24,.6);border-color:rgba(34,211,238,.42)}
.card h3{font-size:18px;margin-bottom:9px}
.card p{font-size:14.5px;color:var(--muted)}
.icon{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:22px;background:linear-gradient(140deg,rgba(34,211,238,.2),rgba(59,130,246,.12));border:1px solid rgba(34,211,238,.28);margin-bottom:15px}
.nodes-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:start}
.node-map{background:radial-gradient(circle at 50% 45%,rgba(34,211,238,.13),rgba(7,14,28,.9) 68%);border:1px solid var(--line);border-radius:22px;padding:18px;position:relative;overflow:hidden;min-height:380px}
.node-map svg{width:100%;height:auto;display:block}
.node-map .pulse{animation:pulse 2.6s infinite ease-in-out}
@keyframes pulse{0%,100%{opacity:.45;r:3.4}50%{opacity:1;r:6.2}}
.node-regions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.node-region{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.node-region b{display:flex;align-items:center;justify-content:space-between;font-size:14px;margin-bottom:6px}
.node-region b em{font-style:normal;color:var(--brand);font-size:12px;font-weight:700}
.bar{height:6px;border-radius:99px;background:#1b2942;overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#22d3ee,#5b8dff)}
.node-region small{display:block;margin-top:6px;color:var(--muted);font-size:11.5px}
.spec-list{display:grid;gap:12px}
.spec{display:flex;align-items:center;justify-content:space-between;gap:14px;background:linear-gradient(120deg,rgba(34,211,238,.07),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:13px;padding:14px 16px}
.spec span{color:var(--muted);font-size:14px}
.spec b{font-size:19px;color:#fff;font-variant-numeric:tabular-nums}
.spec b i{font-style:normal;font-size:12px;color:var(--muted);font-weight:500;margin-left:3px}
.scenario-card{background:linear-gradient(160deg,rgba(17,31,58,.9),rgba(9,17,34,.95));border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s}
.scenario-card:hover{transform:translateY(-4px);border-color:rgba(163,230,53,.4)}
.scenario-card .tag{font-size:11.5px;color:var(--lime);letter-spacing:1px;font-weight:700}
.scenario-card h3{font-size:17px;margin:8px 0 8px}
.scenario-card p{font-size:14px;color:var(--muted)}
.scenario-card .metric{margin-top:14px;font-size:12.5px;color:#a9bdd7;border-top:1px dashed var(--line);padding-top:10px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{position:relative;padding:30px 24px 26px;border-radius:var(--radius);background:linear-gradient(170deg,rgba(20,35,64,.95),rgba(10,18,36,.95));border:1px solid var(--line)}
.step::before{counter-increment:step;content:"0" counter(step);position:absolute;top:18px;right:22px;font-size:34px;font-weight:900;color:rgba(34,211,238,.18);letter-spacing:-1px}
.step .icon{margin-bottom:14px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.price{background:linear-gradient(170deg,rgba(17,31,58,.95),rgba(9,17,34,.98));border:1px solid var(--line);border-radius:20px;padding:30px 26px;display:flex;flex-direction:column;position:relative;transition:.25s}
.price:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.4)}
.price.featured{border-color:rgba(34,211,238,.65);background:linear-gradient(170deg,rgba(20,48,80,.98),rgba(10,23,44,.98));box-shadow:0 20px 50px rgba(34,211,238,.16);transform:translateY(-4px)}
.price .badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:linear-gradient(96deg,#22d3ee,#3b82f6);color:#04121f;font-size:12px;font-weight:800;padding:5px 14px;border-radius:999px;white-space:nowrap}
.price h3{font-size:18px;margin-bottom:6px}
.price .desc{font-size:13px;color:var(--muted);min-height:40px}
.price .amount{display:flex;align-items:baseline;gap:4px;margin:14px 0 18px}
.price .amount strong{font-size:42px;letter-spacing:-1px;color:#fff}
.price .amount span{color:var(--muted);font-size:13px}
.price ul{display:grid;gap:10px;margin-bottom:24px}
.price li{font-size:14px;color:#c3d4ea;padding-left:24px;position:relative}
.price li::before{content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:800}
.price li.no{color:#66799a}
.price li.no::before{content:"—";color:#66799a}
.price .btn{margin-top:auto}
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:linear-gradient(160deg,rgba(16,29,54,.9),rgba(9,17,34,.9));border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:19px 54px 19px 22px;font-weight:700;font-size:15.5px;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:15px;font-size:24px;color:var(--brand);transition:.25s;line-height:1;font-weight:400}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:#fff;background:rgba(34,211,238,.06)}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:#b8cae2}
.faq-body ol{list-style:decimal;padding-left:20px;margin-top:8px;display:grid;gap:6px}
.faq-body p+p{margin-top:8px}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.quote{background:linear-gradient(165deg,rgba(17,31,58,.92),rgba(9,17,34,.95));border:1px solid var(--line);border-radius:16px;padding:22px}
.quote .stars{color:#fbbf24;font-size:13px;letter-spacing:2px;margin-bottom:10px}
.quote p{font-size:14px;color:#c4d5ea;min-height:88px}
.quote .who{display:flex;align-items:center;gap:10px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(140deg,#22d3ee,#3b82f6);color:#04121f;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex-shrink:0}
.who b{display:block;font-size:13.5px}
.who small{color:var(--muted);font-size:11.5px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{background:linear-gradient(165deg,rgba(17,31,58,.92),rgba(9,17,34,.95));border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.news-card:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.45);box-shadow:0 20px 40px rgba(2,9,24,.55)}
.news-card img{width:100%;height:172px;object-fit:cover;border-bottom:1px solid var(--line)}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.news-meta{font-size:12px;color:var(--brand);letter-spacing:.5px;margin-bottom:8px;display:flex;gap:10px;flex-wrap:wrap}
.news-meta span{color:var(--muted)}
.news-card h3{font-size:16.5px;line-height:1.5;margin-bottom:8px}
.news-card p{font-size:13.5px;color:var(--muted);flex:1}
.news-card .more{margin-top:12px;font-size:13px;color:var(--brand);font-weight:700}
.cta-band{margin:20px auto 0;border-radius:24px;padding:46px 36px;background:radial-gradient(circle at 12% 20%,rgba(34,211,238,.22),transparent 55%),linear-gradient(120deg,rgba(18,39,72,.95),rgba(8,16,32,.98));border:1px solid rgba(34,211,238,.3);text-align:center;box-shadow:var(--shadow)}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:10px}
.cta-band p{color:var(--muted);margin-bottom:22px}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.site-footer{border-top:1px solid var(--line);background:rgba(5,10,22,.75);padding:52px 0 24px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.footer-brand p{font-size:13.5px;color:var(--muted);margin-top:12px;max-width:320px}
.footer-col h4{font-size:14px;margin-bottom:14px;color:#dbe8fa}
.footer-col a,.footer-col span{display:block;font-size:13.5px;color:var(--muted);padding:5px 0}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:34px;padding-top:20px;border-top:1px solid var(--line);font-size:12.5px;color:#7f93b1}
.footer-bottom .links{display:flex;gap:16px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--brand)}
.to-top{display:inline-flex;align-items:center;gap:6px;color:#a9bed8}
.page-hero{padding:132px 0 46px;text-align:center}
.page-hero h1{font-size:clamp(28px,3.6vw,42px);margin-bottom:14px}
.page-hero p{color:var(--muted);max-width:720px;margin:0 auto}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{color:#4d6282}
.download-hero{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:132px 0 50px}
.download-hero h1{font-size:clamp(30px,4vw,46px);margin-bottom:14px}
.download-hero .lead{color:#b9cbe4;margin-bottom:24px}
.download-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:520px;margin-top:26px}
.download-meta div{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.download-meta b{display:block;font-size:16px;color:#fff}
.download-meta span{font-size:11.5px;color:var(--muted)}
.version-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.version{background:linear-gradient(170deg,rgba(17,31,58,.95),rgba(9,17,34,.98));border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;flex-direction:column}
.version h3{font-size:17px;display:flex;align-items:center;gap:8px;margin-bottom:4px}
.version .ver{font-size:12px;color:var(--brand);margin-bottom:12px}
.version ul{display:grid;gap:8px;margin:8px 0 20px}
.version li{font-size:13.5px;color:#bdcee5;padding-left:20px;position:relative}
.version li::before{content:"›";position:absolute;left:4px;color:var(--brand)}
.version .btn{margin-top:auto}
.req-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.req{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.req span{font-size:12px;color:var(--brand);letter-spacing:1px}
.req b{display:block;font-size:15px;margin-top:6px;color:#e7f1ff}
.req small{display:block;color:var(--muted);font-size:12.5px;margin-top:4px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:34px;align-items:start;padding:26px 0 40px}
.article{background:linear-gradient(170deg,rgba(15,28,52,.92),rgba(8,15,30,.96));border:1px solid var(--line);border-radius:20px;padding:34px;min-width:0}
.article h1{font-size:clamp(24px,3vw,34px);margin:8px 0 16px}
.article-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--muted);padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:24px}
.article-meta b{color:#cfe0f5;font-weight:600}
.article-cover{width:100%;height:auto;border-radius:14px;border:1px solid var(--line);margin-bottom:24px}
.article p{font-size:15.5px;color:#c3d4e9;margin-bottom:17px}
.article h2{font-size:21px;margin:30px 0 12px;padding-left:14px;border-left:4px solid var(--brand);scroll-margin-top:96px}
.article figure{margin:24px 0}
.article figure img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line)}
.article figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:8px}
.article blockquote{margin:24px 0;padding:18px 22px;background:rgba(34,211,238,.07);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:#d3e4f8;font-size:15px}
.article blockquote cite{display:block;margin-top:8px;font-size:12.5px;color:var(--muted);font-style:normal}
.article .download-inline{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:28px 0 6px;padding:20px;border:1px dashed rgba(34,211,238,.4);border-radius:14px;background:rgba(34,211,238,.05)}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}
.article-nav a{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-size:13.5px;color:#c6d7ec;transition:.2s}
.article-nav a:hover{border-color:rgba(34,211,238,.5);color:#fff}
.article-nav a span{display:block;font-size:11.5px;color:var(--muted);margin-bottom:3px}
.article-nav .next{text-align:right}
.comments{margin-top:34px}
.comments h2{font-size:20px;margin-bottom:16px;border:none;padding-left:0}
.comment{display:flex;gap:12px;padding:16px 0;border-bottom:1px dashed var(--line)}
.comment:last-child{border-bottom:none}
.comment .body{flex:1}
.comment .head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:4px}
.comment .head b{font-size:14px}
.comment .head small{font-size:11.5px;color:var(--muted)}
.comment p{font-size:14px;color:#b9cbe2;margin:0}
.sidebar{position:sticky;top:94px;display:grid;gap:18px}
.side-card{background:linear-gradient(165deg,rgba(16,29,54,.95),rgba(8,15,30,.98));border:1px solid var(--line);border-radius:16px;padding:20px}
.side-card h3{font-size:15px;padding-left:11px;border-left:3px solid var(--brand);margin-bottom:14px}
.toc{border-left:1px solid rgba(140,175,225,.25);margin-left:6px;padding-left:16px;display:grid;gap:10px}
.toc a{position:relative;font-size:13.5px;color:#a9bdd7;display:block;transition:.2s}
.toc a::before{content:"";position:absolute;left:-21px;top:8px;width:8px;height:8px;border-radius:50%;background:#2b405f;box-shadow:0 0 0 3px #0c1830}
.toc a.active{color:var(--brand);font-weight:700}
.toc a.active::before{background:var(--brand);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.hot-list{display:grid;gap:10px}
.hot-list a{display:flex;gap:10px;font-size:13.5px;color:#b6c8e0;align-items:flex-start;line-height:1.55}
.hot-list a:hover{color:var(--brand)}
.rank{width:20px;height:20px;border-radius:6px;background:#22314d;color:#c2d3ea;font-size:11.5px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;font-weight:800;transition:.2s}
.hot-list a:hover .rank{transform:scale(1.12)}
.rank.r1{background:linear-gradient(140deg,#22d3ee,#3b82f6);color:#04121f}
.rank.r2{background:linear-gradient(140deg,#fb923c,#f59e0b);color:#2a1500}
.rank.r3{background:linear-gradient(140deg,#fbbf24,#d97706);color:#2a1500}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags a{font-size:12.5px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);color:#b6c8e0}
.tags a:hover{border-color:var(--brand);color:var(--brand);background:rgba(34,211,238,.07)}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.related a{display:block;background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:12px;padding:14px;font-size:13.5px;color:#c2d4ea;transition:.2s}
.related a:hover{border-color:rgba(34,211,238,.5);color:#fff;transform:translateY(-3px)}
.related a small{display:block;color:var(--muted);font-size:11.5px;margin-bottom:5px}
.legal{max-width:900px;margin:0 auto}
.legal h2{font-size:20px;margin:30px 0 10px;padding-left:12px;border-left:3px solid var(--brand)}
.legal p,.legal li{font-size:14.5px;color:#b9cbe2;margin-bottom:9px}
.legal ul{list-style:disc;padding-left:22px}
.legal .note{margin-top:24px;padding:16px 18px;border-radius:12px;border:1px dashed rgba(34,211,238,.35);background:rgba(34,211,238,.05);font-size:13.5px;color:#a9bfd9}
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.map-card{background:linear-gradient(165deg,rgba(17,31,58,.92),rgba(9,17,34,.95));border:1px solid var(--line);border-radius:16px;padding:22px}
.map-card h3{font-size:16px;margin-bottom:12px;color:#e4efff}
.map-card a{display:block;font-size:13.5px;color:#a9bdd7;padding:6px 0;border-bottom:1px dashed rgba(140,175,225,.12)}
.map-card a:last-child{border-bottom:none}
.map-card a:hover{color:var(--brand)}
.news-list-page{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;align-items:start;padding:20px 0 50px}
.news-list{display:grid;gap:18px}
.news-item{display:grid;grid-template-columns:250px 1fr;gap:20px;background:linear-gradient(165deg,rgba(17,31,58,.9),rgba(9,17,34,.95));border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s}
.news-item:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.45)}
.news-item img{width:100%;height:100%;min-height:165px;object-fit:cover}
.news-item .body{padding:18px 20px 18px 0}
.news-item h2{font-size:17px;line-height:1.5;margin-bottom:8px}
.news-item p{font-size:13.5px;color:var(--muted);margin-bottom:10px}
.not-found{padding:170px 0 100px;text-align:center}
.not-found .code{font-size:clamp(80px,16vw,160px);font-weight:900;line-height:1;background:linear-gradient(100deg,#22d3ee,#5b8dff);-webkit-background-clip:text;background-clip:text;color:transparent}
.not-found h1{font-size:26px;margin:14px 0 10px}
.not-found p{color:var(--muted);margin-bottom:24px}
html.js 
html.js .reveal.in{opacity:1;transform:none}
@media(max-width:992px){
.nav{position:fixed;top:74px;left:0;right:0;background:rgba(7,13,28,.98);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:14px 6%;gap:4px;max-height:calc(100vh - 74px);overflow:auto;transform:translateY(-120%);visibility:hidden;transition:.3s;box-shadow:0 24px 40px rgba(0,0,0,.5)}
.nav-switch:checked~.nav{transform:none;visibility:visible}
.hamburger{display:flex}
.nav-switch:checked~.hamburger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-switch:checked~.hamburger span:nth-child(2){opacity:0}
.nav-switch:checked~.hamburger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.nav-link{width:100%;justify-content:space-between;padding:12px 14px;font-size:16px}
.dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.03);border:none;border-radius:10px;display:none;padding:4px 0;margin-bottom:6px}
.nav-toggle:checked~.dropdown{display:block}
.nav-group:hover .dropdown{display:none}
.nav-toggle:checked~.dropdown{display:block}
.nav-toggle:checked~.nav-link .caret{transform:rotate(180deg)}
.nav-download{margin:10px 0 4px;width:100%}
.hero{padding:112px 0 50px}
.hero-grid,.nodes-wrap,.download-hero{grid-template-columns:1fr;gap:34px}
.hero-stats{max-width:none}
.grid-4,.grid-3,.quote-grid,.news-grid,.version-list,.req-list,.map-grid{grid-template-columns:repeat(2,1fr)}
.steps,.price-grid,.related{grid-template-columns:1fr 1fr}
.footer-grid{grid-template-columns:1fr 1fr}
.article-layout,.news-list-page{grid-template-columns:1fr;gap:24px}
.sidebar{position:static;grid-template-columns:1fr 1fr;display:grid}
.sidebar .side-card:first-child{grid-column:1/-1}
.article{padding:26px}
.news-item{grid-template-columns:210px 1fr}
}
@media(max-width:768px){
.section{padding:60px 0}
.stats-grid{grid-template-columns:1fr 1fr;gap:20px 10px}
.stats-grid div:nth-child(2){border-right:none}
.speed-panel{padding:16px}
.hero-stats{grid-template-columns:1fr 1fr}
.hero-stat:last-child{grid-column:1/-1}
.grid-4,.grid-3,.quote-grid,.news-grid,.version-list,.req-list,.map-grid,.steps,.price-grid,.related{grid-template-columns:1fr}
.price.featured{transform:none}
.news-item{grid-template-columns:1fr}
.news-item img{height:190px;min-height:0}
.news-item .body{padding:0 18px 20px}
.sidebar{grid-template-columns:1fr}
.article-nav{grid-template-columns:1fr}
.article-nav .next{text-align:left}
.footer-grid{grid-template-columns:1fr 1fr;gap:22px}
.footer-brand{grid-column:1/-1}
.faq-item summary{padding:16px 46px 16px 16px;font-size:14.5px}
.article{padding:20px;border-radius:16px}
.article p{font-size:14.8px}
.download-meta{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
.header-inner{height:66px}
.brand{font-size:16.5px}
.brand img{width:32px;height:32px}
.nav{top:66px;max-height:calc(100vh - 66px)}
.hero{padding:100px 0 40px}
.hero h1{font-size:29px}
.hero-sub{font-size:15px}
.hero-actions .btn{flex:1 1 100%}
.hero-stats{grid-template-columns:1fr 1fr;gap:10px}
.hero-stat strong{font-size:21px}
.speed-rows{grid-template-columns:1fr 1fr}
.speed-row:last-child{grid-column:1/-1}
.node-list label{font-size:12px;padding:6px 9px}
.ping strong{font-size:34px}
.stats-grid strong{font-size:26px}
.download-meta{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.footer-bottom{justify-content:center;text-align:center}
.cta-band{padding:32px 18px;border-radius:18px}
.cta-actions .btn{width:100%}
.section-head{margin-bottom:30px}
}