:root{--brand:#2563eb;--brand-2:#06b6d4;--brand-d:#1d4ed8;--ink:#0f172a;--sub:#475569;--muted:#64748b;--line:#e2e8f0;--bg:#f6f9fe;--card:#ffffff;--ok:#10b981;--warn:#f59e0b;--err:#ef4444;--dark:#0b1220;--grad:linear-gradient(135deg,#2563eb 0%,#06b6d4 100%);--grad-2:linear-gradient(135deg,#1d4ed8 0%,#0ea5e9 60%,#06b6d4 100%);--shadow:0 10px 30px rgba(15,23,42,.08);--shadow-lg:0 24px 60px rgba(37,99,235,.18);--r:16px;--r-lg:24px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:8px 16px;z-index:999;border-radius:0 0 8px 0}
.skip:focus{left:0}
.hide{display:none!important}
html:not(.js) .reveal{opacity:1!important;transform:none!important}
html.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
html.js .reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}.reveal-d2{transition-delay:.16s}.reveal-d3{transition-delay:.24s}
.sec{padding:88px 0}
.sec-alt{background:#fff}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-tag{display:inline-block;padding:6px 18px;border-radius:999px;background:rgba(37,99,235,.08);color:var(--brand-d);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:16px}
.sec-title{font-size:36px;font-weight:800;line-height:1.3;letter-spacing:.01em}
.sec-desc{color:var(--muted);margin-top:14px;font-size:16px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;border:0;line-height:1.2}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(37,99,235,.35)}
.btn-primary:hover{box-shadow:0 16px 34px rgba(37,99,235,.45)}
.btn-ghost{background:#fff;color:var(--brand-d);border:1.5px solid rgba(37,99,235,.35)}
.btn-ghost:hover{background:rgba(37,99,235,.06)}
.btn-lg{padding:17px 42px;font-size:16px}
.btn-sm{padding:10px 22px;font-size:14px}
.btn-block{width:100%}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;background:transparent}
.nav.scrolled{background:rgba(11,18,32,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 6px 24px rgba(0,0,0,.18)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#fff}
.logo img{height:38px;width:38px;border-radius:10px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-item>label,.nav-item>a,.nav-item>.nav-a{display:flex;align-items:center;gap:6px;padding:10px 16px;border-radius:10px;color:rgba(255,255,255,.88);font-size:15px;font-weight:600;cursor:pointer;transition:background .25s ease,color .25s ease}
.nav-item>label:hover,.nav-item>a:hover,.nav-item>.nav-a:hover{background:rgba(255,255,255,.12);color:#fff}
.nav-item>.nav-a.active{color:#7dd3fc}
.nav-item .caret{display:inline-block;transition:transform .3s ease;font-size:11px}
.nav-dd{position:absolute;top:calc(100% + 10px);left:0;min-width:210px;background:#fff;border-radius:14px;box-shadow:0 18px 50px rgba(15,23,42,.22);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .28s ease;z-index:110}
.nav-item:hover .nav-dd,.nav-item:focus-within .nav-dd{opacity:1;visibility:visible;transform:translateY(0)}
.nav-item:hover .caret,.nav-item:focus-within .caret{transform:rotate(180deg)}
.nav-dd a{display:block;padding:11px 16px;border-radius:9px;color:var(--sub);font-size:14px;font-weight:500;transition:background .2s ease,color .2s ease}
.nav-dd a:hover{background:rgba(37,99,235,.08);color:var(--brand-d)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-cta .btn{padding:11px 24px;font-size:14px}
.nav-toggle{display:none}
.nav-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;border-radius:8px}
.nav-burger span{display:block;width:24px;height:2.5px;background:#fff;border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.hero{position:relative;padding:150px 0 110px;background:radial-gradient(1200px 600px at 85% -10%,rgba(6,182,212,.35),transparent 60%),radial-gradient(900px 500px at -10% 20%,rgba(37,99,235,.45),transparent 55%),linear-gradient(160deg,#0b1220 0%,#101b34 55%,#0b1220 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:7px 18px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:22px;color:#bfdbfe}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(16,185,129,.25);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(16,185,129,.25)}50%{box-shadow:0 0 0 8px rgba(16,185,129,.1)}}
.hero h1{font-size:52px;font-weight:800;line-height:1.18;letter-spacing:.01em}
.hero-sub{margin:22px 0 34px;font-size:18px;color:rgba(226,232,240,.85);max-width:540px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-btns .btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.3);color:#fff}
.hero-btns .btn-ghost:hover{background:rgba(255,255,255,.14)}
.hero-stats{display:flex;gap:44px;margin-top:48px;flex-wrap:wrap}
.stat b{display:block;font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:14px;color:rgba(203,213,225,.75)}
.demo{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);padding:26px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 30px 80px rgba(0,0,0,.35)}
.demo-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.demo-title{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px}
.demo-title .logo-s{width:34px;height:34px;border-radius:9px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800}
.demo-status{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.08);color:#cbd5e1;transition:all .3s ease}
.demo-status .sdot{width:8px;height:8px;border-radius:50%;background:#94a3b8;transition:all .3s ease}
.demo-body{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center}
.gauge{position:relative;width:190px;height:190px;margin:0 auto}
.gauge svg{width:100%;height:100%;transform:rotate(-90deg)}
.gauge .ring-bg{fill:none;stroke:rgba(255,255,255,.12);stroke-width:12}
.gauge .ring{fill:none;stroke:url(#gradStroke);stroke-width:12;stroke-linecap:round;stroke-dasharray:502.65;stroke-dashoffset:80;transition:stroke-dashoffset .8s ease}
#demo-connect:checked~.demo-body .gauge .ring{animation:gaugeSpin 3s linear infinite}
@keyframes gaugeSpin{0%{stroke-dashoffset:80}50%{stroke-dashoffset:120}100%{stroke-dashoffset:80}}
.gauge-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.gauge-speed{font-size:34px;font-weight:800;line-height:1.1}
.gauge-speed small{font-size:13px;font-weight:600;color:rgba(203,213,225,.7)}
.gauge-label{font-size:12px;color:rgba(203,213,225,.65);margin-top:2px}
.demo-meta{display:flex;flex-direction:column;gap:14px}
.demo-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;color:#cbd5e1}
.demo-row b{color:#fff;font-weight:700}
.demo-row .bar{width:90px;height:6px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}
.demo-row .bar i{display:block;height:100%;border-radius:99px;background:var(--grad)}
.demo-nodes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}
.node-card{position:relative}
.node-card input{position:absolute;opacity:0;pointer-events:none}
.node-card span{display:block;text-align:center;padding:11px 6px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.05);font-size:13px;font-weight:600;cursor:pointer;transition:all .25s ease;color:#cbd5e1}
.node-card span em{display:block;font-style:normal;font-size:11px;color:rgba(148,163,184,.8);font-weight:500}
.node-card input:checked+span{border-color:#38bdf8;background:rgba(56,189,248,.16);color:#fff;box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.node-card span:hover{border-color:rgba(255,255,255,.4)}
.node-data{display:none}
#node-hk:checked~.demo-nodes-wrap .nd-hk,#node-jp:checked~.demo-nodes-wrap .nd-jp,#node-us:checked~.demo-nodes-wrap .nd-us{display:block}
.demo-actions{display:flex;gap:14px;margin-top:24px;align-items:center}
.demo-conn{position:relative;flex:1}
.demo-conn label{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border-radius:14px;background:var(--grad);font-weight:800;font-size:15px;cursor:pointer;transition:all .3s ease;color:#fff;box-shadow:0 8px 22px rgba(37,99,235,.4)}
#demo-connect:checked~.demo-actions .demo-conn label{background:rgba(255,255,255,.1);box-shadow:none;color:#94a3b8}
#demo-connect:checked~.demo-actions .demo-conn label .dicon{animation:none;background:#94a3b8}
.demo-conn .dicon{width:10px;height:10px;border-radius:50%;background:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.3);animation:pulse 1.6s infinite}
#demo-connect:checked~.demo-head .demo-status,#demo-connect:checked~.demo-status{background:rgba(16,185,129,.16);color:#6ee7b7}
#demo-connect:checked~.demo-head .demo-status .sdot,#demo-connect:checked~.demo-status .sdot{background:var(--ok);animation:pulse 1.6s infinite}
.demo-switches{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.switch-row{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:#cbd5e1}
.switch{position:relative;display:inline-block;width:44px;height:24px;flex:none}
.switch input{position:absolute;opacity:0}
.switch i{position:absolute;inset:0;border-radius:99px;background:rgba(255,255,255,.15);transition:background .25s ease;cursor:pointer}
.switch i::after{content:"";position:absolute;left:3px;top:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .25s ease}
.switch input:checked+i{background:var(--grad)}
.switch input:checked+i::after{transform:translateX(20px)}
.demo-tip{margin-top:18px;font-size:12px;color:rgba(148,163,184,.75);text-align:center}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border-radius:var(--r-lg);padding:28px;border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease}
.card:hover{transform:translateY(-6px);box-shadow:0 20px 46px rgba(15,23,42,.12)}
.card-icon{width:56px;height:56px;border-radius:16px;background:rgba(37,99,235,.1);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}
.nodes-panel{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.node-list{display:flex;flex-direction:column;gap:14px}
.node-item{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 20px;box-shadow:var(--shadow);transition:transform .25s ease}
.node-item:hover{transform:translateX(6px)}
.node-flag{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;background:rgba(37,99,235,.08);flex:none}
.node-info{flex:1}
.node-info b{display:block;font-size:15.5px}
.node-info span{font-size:12.5px;color:var(--muted)}
.node-ping{font-weight:800;color:var(--brand-d);font-size:14px}
.node-map{background:var(--dark);border-radius:var(--r-lg);padding:36px;position:relative;overflow:hidden;min-height:340px;display:flex;align-items:center;justify-content:center}
.node-map .globe{width:240px;height:240px;border-radius:50%;background:radial-gradient(circle at 35% 30%,rgba(56,189,248,.5),rgba(37,99,235,.25) 55%,rgba(11,18,32,.9));box-shadow:inset 0 0 60px rgba(6,182,212,.35),0 0 60px rgba(37,99,235,.3);position:relative}
.node-map .pin{position:absolute;width:10px;height:10px;border-radius:50%;background:#22d3ee;box-shadow:0 0 12px #22d3ee;animation:pulse 2s infinite}
.pin-hk{top:42%;left:74%}.pin-jp{top:40%;left:86%}.pin-us{top:34%;left:24%}.pin-eu{top:32%;left:48%}.pin-sg{top:55%;left:70%}
.node-map .pin::after{content:attr(data-n);position:absolute;left:14px;top:-4px;font-size:11px;color:#94a3b8;white-space:nowrap}
.speed-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.speed-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 24px;text-align:center;box-shadow:var(--shadow)}
.speed-card b{font-size:34px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block}
.speed-card span{font-size:13.5px;color:var(--muted);display:block;margin-top:6px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px 26px;box-shadow:var(--shadow)}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:24px;right:26px;font-size:40px;font-weight:800;color:rgba(37,99,235,.12);line-height:1}
.step-icon{width:52px;height:52px;border-radius:14px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.5px}
.scenario{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 28px;box-shadow:var(--shadow);overflow:hidden;transition:transform .3s ease}
.scenario-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);opacity:0;transition:opacity .3s ease}
.scenario-card:hover{transform:translateY(-6px)}
.scenario-card:hover::before{opacity:1}
.scenario-card .s-icon{font-size:32px;margin-bottom:16px}
.scenario-card h3{font-size:18px;margin-bottom:10px}
.scenario-card p{color:var(--muted);font-size:14.5px}
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch}
.plan{position:relative;background:#fff;border:1.5px solid var(--line);border-radius:var(--r-lg);padding:36px 30px;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.plan.pop{border-color:transparent;background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;box-shadow:var(--shadow-lg);transform:scale(1.04);z-index:2}
.plan-tag{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12.5px;font-weight:700;padding:6px 20px;border-radius:999px;white-space:nowrap;box-shadow:0 8px 18px rgba(37,99,235,.35)}
.plan-name{font-size:19px;font-weight:800}
.plan-desc{color:var(--muted);font-size:13.5px;margin:8px 0 22px}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-bottom:26px}
.plan-price b{font-size:44px;font-weight:800;line-height:1}
.plan-price span{color:var(--muted);font-size:14px}
.plan-price s{color:#94a3b8;font-size:14px;margin-left:8px}
.plan-feats{flex:1;display:flex;flex-direction:column;gap:13px;margin-bottom:28px}
.plan-feats li{display:flex;gap:10px;font-size:14.5px;color:var(--sub);align-items:flex-start}
.plan-feats li::before{content:"✓";flex:none;width:20px;height:20px;border-radius:50%;background:rgba(16,185,129,.14);color:var(--ok);display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:800;margin-top:2px}
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
details.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;transition:border-color .25s ease}
details.faq-item[open]{border-color:rgba(37,99,235,.4)}
details.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;cursor:pointer;font-weight:700;font-size:16px;transition:color .2s ease}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary::after{content:"+";flex:none;width:30px;height:30px;border-radius:50%;background:rgba(37,99,235,.08);color:var(--brand-d);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;transition:transform .3s ease,background .3s ease}
details.faq-item[open] summary{color:var(--brand-d)}
details.faq-item[open] summary::after{content:"−";background:var(--grad);color:#fff;transform:rotate(180deg)}
.faq-a{padding:0 26px 24px;color:var(--sub);font-size:14.5px}
.faq-a ol{margin:12px 0 0 4px;display:flex;flex-direction:column;gap:8px;counter-reset:fs}
.faq-a ol li{counter-increment:fs;display:flex;gap:10px;align-items:flex-start}
.faq-a ol li::before{content:counter(fs);flex:none;width:22px;height:22px;border-radius:50%;background:rgba(37,99,235,.1);color:var(--brand-d);font-size:11.5px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:3px}
.testi{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testi-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px}
.testi-stars{color:var(--warn);font-size:15px;letter-spacing:2px}
.testi-text{color:var(--sub);font-size:14.5px;flex:1}
.testi-user{display:flex;align-items:center;gap:12px}
.testi-ava{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:17px;flex:none}
.testi-user b{display:block;font-size:14.5px}
.testi-user span{font-size:12.5px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:0 20px 46px rgba(15,23,42,.12)}
.news-card .n-img{aspect-ratio:16/9;overflow:hidden;background:#e2e8f0}
.news-card .n-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .n-img img{transform:scale(1.06)}
.news-card .n-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.n-cat{display:inline-block;align-self:flex-start;background:rgba(37,99,235,.08);color:var(--brand-d);font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.news-card h3{font-size:17px;font-weight:700;line-height:1.45;flex:1}
.news-card .n-date{font-size:12.5px;color:var(--muted)}
.cta{position:relative;padding:96px 0;background:radial-gradient(900px 400px at 50% -20%,rgba(6,182,212,.4),transparent 60%),linear-gradient(150deg,#0b1220,#101b34);color:#fff;text-align:center;overflow:hidden}
.cta h2{font-size:38px;font-weight:800;line-height:1.3}
.cta p{color:rgba(203,213,225,.8);margin:18px auto 36px;max-width:560px;font-size:16px}
footer{background:#070d1a;color:#94a3b8;padding:64px 0 0;font-size:14px}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand p{font-size:13.5px;max-width:280px;line-height:1.8}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.foot-col a{display:block;padding:6px 0;color:#94a3b8;transition:color .2s ease,padding-left .2s ease}
.foot-col a:hover{color:#7dd3fc;padding-left:4px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px}
.page-hero{padding:140px 0 72px;background:radial-gradient(1000px 500px at 80% -10%,rgba(6,182,212,.3),transparent 60%),linear-gradient(160deg,#0b1220,#101b34);color:#fff;text-align:center}
.page-hero h1{font-size:40px;font-weight:800}
.page-hero .ph-sub{color:rgba(203,213,225,.8);margin-top:14px;max-width:640px;margin-left:auto;margin-right:auto}
.crumb{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:18px;font-size:13.5px;color:rgba(203,213,225,.7);flex-wrap:wrap}
.crumb a{color:#7dd3fc;transition:color .2s ease}
.crumb a:hover{color:#fff}
.crumb i{font-style:normal;color:rgba(148,163,184,.6)}
.dl-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:150px 0 90px;position:relative;z-index:1}
.dl-top{position:relative;background:radial-gradient(1200px 600px at 85% -10%,rgba(6,182,212,.35),transparent 60%),radial-gradient(900px 500px at -10% 20%,rgba(37,99,235,.45),transparent 55%),linear-gradient(160deg,#0b1220 0%,#101b34 55%,#0b1220 100%);color:#fff;overflow:hidden}
.dl-top::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.dl-layout h2{font-size:40px;font-weight:800;line-height:1.25;color:#fff}
.dl-layout .lead{color:rgba(226,232,240,.85);margin:18px 0 30px;font-size:16.5px}
.dl-facts{display:flex;gap:36px;margin-top:38px;flex-wrap:wrap}
.dl-fact b{font-size:24px;font-weight:800;color:#fff;display:block}
.dl-fact span{font-size:13px;color:rgba(203,213,225,.75)}
.dl-demo-wrap{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);padding:20px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 30px 80px rgba(0,0,0,.35)}
.versions{display:flex;flex-direction:column;gap:18px}
.ver{display:flex;align-items:center;gap:24px;background:#fff;border:1.5px solid var(--line);border-radius:var(--r-lg);padding:26px 30px;box-shadow:var(--shadow);flex-wrap:wrap;transition:border-color .25s ease,transform .25s ease}
.ver:hover{border-color:rgba(37,99,235,.45);transform:translateY(-3px)}
.ver-icon{width:58px;height:58px;border-radius:16px;background:rgba(37,99,235,.09);display:flex;align-items:center;justify-content:center;font-size:28px;flex:none}
.ver-main{flex:1;min-width:200px}
.ver-main b{font-size:17px}
.ver-main .v-meta{font-size:12.5px;color:var(--muted);margin-top:4px}
.ver-perks{display:flex;gap:8px;flex-wrap:wrap;max-width:340px}
.ver-perks span{font-size:12px;background:rgba(16,185,129,.1);color:#059669;padding:4px 12px;border-radius:999px;font-weight:600}
.ver .btn{flex:none}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.req{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
.req b{display:block;font-size:15px;margin-bottom:6px}
.req span{font-size:13.5px;color:var(--muted)}
.install-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:is}
.istep{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 24px;box-shadow:var(--shadow)}
.istep::before{counter-increment:is;content:"0" counter(is);position:absolute;top:20px;right:22px;font-size:34px;font-weight:800;color:rgba(37,99,235,.14);line-height:1}
.istep .is-icon{font-size:30px;margin-bottom:14px}
.istep h3{font-size:17px;margin-bottom:8px}
.istep p{font-size:13.5px;color:var(--muted)}
.news-wrap{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start;padding:56px 0 88px}
.news-main{min-width:0}
.article{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden}
.article-cover{aspect-ratio:16/9;overflow:hidden;background:#e2e8f0}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-in{padding:40px 44px}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin:16px 0 26px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.article-meta .a-cat{background:rgba(37,99,235,.08);color:var(--brand-d);font-weight:700;padding:4px 14px;border-radius:999px}
.article h1{font-size:30px;font-weight:800;line-height:1.4;margin-top:4px}
.article h2{font-size:22px;font-weight:800;margin:36px 0 16px;padding-left:14px;border-left:4px solid;border-image:linear-gradient(180deg,#2563eb,#06b6d4) 1}
.article p{color:var(--sub);font-size:15.5px;margin-bottom:18px;text-align:justify}
.article .lead-p{font-size:16.5px;color:var(--ink);background:rgba(37,99,235,.05);border-radius:14px;padding:20px 24px;border:1px dashed rgba(37,99,235,.3)}
.article figure{margin:26px 0}
.article figure img{border-radius:16px;width:100%}
.article figcaption{font-size:12.5px;color:var(--muted);text-align:center;margin-top:10px}
.article blockquote{border-left:4px solid #06b6d4;background:rgba(6,182,212,.06);padding:16px 22px;border-radius:0 12px 12px 0;color:var(--sub);font-size:15px;margin:22px 0}
.article blockquote b{color:var(--brand-d)}
.article .data-box{background:linear-gradient(135deg,#0b1220,#101b34);color:#e2e8f0;border-radius:16px;padding:26px 30px;margin:24px 0}
.article .data-box b{color:#7dd3fc}
.article-nav{display:flex;justify-content:space-between;gap:14px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.article-nav a{font-size:14px;font-weight:600;color:var(--brand-d);transition:color .2s ease;max-width:46%}
.article-nav a:hover{color:var(--brand-2)}
.article-nav a.prev{text-align:left}
.article-nav a.next{text-align:right;margin-left:auto}
.back-list{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--brand-d);margin-top:22px}
.comments{margin-top:44px}
.comments h3{font-size:20px;font-weight:800;margin-bottom:22px;padding-left:14px;border-left:4px solid;border-image:linear-gradient(180deg,#2563eb,#06b6d4) 1}
.comment{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.comment-ava{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px;flex:none}
.comment-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.comment-head b{font-size:14.5px}
.comment-head span{font-size:12px;color:var(--muted)}
.comment p{font-size:14px;color:var(--sub);margin-top:6px;text-align:left}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:26px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.side-title{display:flex;align-items:center;gap:10px;padding:18px 22px;border-bottom:1px solid var(--line);font-weight:800;font-size:15.5px}
.side-title::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--grad)}
.toc{padding:14px 12px}
.toc li{position:relative}
.toc a{display:flex;align-items:flex-start;gap:12px;padding:9px 10px 9px 22px;font-size:13.5px;color:var(--sub);transition:color .2s ease;line-height:1.5}
.toc a::before{content:"";position:absolute;left:10px;top:0;bottom:0;width:2px;background:var(--line)}
.toc a::after{content:"";position:absolute;left:5.5px;top:16px;width:11px;height:11px;border-radius:50%;background:#fff;border:2.5px solid #cbd5e1;transition:all .25s ease}
.toc a:hover{color:var(--brand-d)}
.toc a.active{color:var(--brand-d);font-weight:700}
.toc a.active::after{background:var(--brand);border-color:var(--brand)}
.hot{padding:10px 14px 16px}
.hot a{display:flex;align-items:center;gap:12px;padding:9px 8px;font-size:13.5px;color:var(--sub);transition:color .2s ease;line-height:1.45}
.hot a:hover{color:var(--brand-d)}
.hot a:hover .rank{transform:scale(1.12)}
.rank{flex:none;width:26px;height:26px;border-radius:8px;background:#e2e8f0;color:var(--muted);font-weight:800;font-size:12.5px;display:flex;align-items:center;justify-content:center;transition:transform .2s ease}
.rank.r1{background:linear-gradient(135deg,#2563eb,#06b6d4);color:#fff}
.rank.r2{background:linear-gradient(135deg,#f97316,#f59e0b);color:#fff}
.rank.r3{background:linear-gradient(135deg,#f59e0b,#fbbf24);color:#fff}
.cats{display:flex;flex-wrap:wrap;gap:10px;padding:16px 20px 20px}
.cats a{font-size:12.5px;color:var(--sub);background:#f1f5f9;padding:6px 14px;border-radius:999px;border:1px solid transparent;transition:all .25s ease}
.cats a:hover{color:var(--brand-d);border-color:var(--brand);background:rgba(37,99,235,.06)}
.related{margin-top:44px}
.related h3{font-size:20px;font-weight:800;margin-bottom:22px;padding-left:14px;border-left:4px solid;border-image:linear-gradient(180deg,#2563eb,#06b6d4) 1}
.sitemap-links{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;padding:60px 0 90px}
.sm-col{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow)}
.sm-col h3{font-size:17px;font-weight:800;margin-bottom:16px;padding-left:12px;border-left:4px solid;border-image:linear-gradient(180deg,#2563eb,#06b6d4) 1}
.sm-col a{display:block;padding:7px 0;color:var(--sub);font-size:14px;transition:color .2s ease,padding-left .2s ease}
.sm-col a:hover{color:var(--brand-d);padding-left:6px}
.e404{padding:120px 0 90px;text-align:center}
.e404 .code{font-size:120px;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.e404 h1{font-size:28px;margin:20px 0 14px}
.e404 p{color:var(--muted);margin-bottom:34px}
.e404 .countdown{font-size:14px;color:var(--muted);margin-top:20px}
.paginate{display:flex;align-items:center;justify-content:center;gap:8px;padding:40px 0 10px}
.paginate span,.paginate a{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;border:1px solid var(--line);background:#fff;color:var(--sub);transition:all .2s ease}
.paginate a:hover{border-color:var(--brand);color:var(--brand-d)}
.paginate .cur{background:var(--grad);color:#fff;border-color:transparent}
.note-tip{background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.35);color:#92400e;border-radius:14px;padding:14px 20px;font-size:13.5px;margin-top:18px}
@media(max-width:992px){
.hero-in,.dl-layout{grid-template-columns:1fr;gap:44px}
.hero h1{font-size:40px}
.hero{padding:130px 0 80px}
.hero .demo{max-width:560px;margin:0 auto}
.cards,.scenario,.pricing,.testi,.news-grid,.speed-strip,.steps,.req-grid,.install-steps,.sitemap-links{grid-template-columns:repeat(2,1fr)}
.nodes-panel{grid-template-columns:1fr;gap:30px}
.plan.pop{transform:none}
.news-wrap{grid-template-columns:1fr}
.sidebar{position:static;flex-direction:row;flex-wrap:wrap}
.side-card{flex:1;min-width:260px}
.nav-burger{display:flex}
.nav-toggle:checked~.nav-burger span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle:checked~.nav-burger span:nth-child(2){opacity:0}
.nav-toggle:checked~.nav-burger span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
.nav-links{position:fixed;top:72px;left:0;right:0;background:#0b1220;flex-direction:column;align-items:stretch;padding:14px 24px 28px;gap:4px;max-height:calc(100vh - 72px);overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-12px);transition:all .3s ease;box-shadow:0 24px 50px rgba(0,0,0,.4)}
.nav-toggle:checked~.nav-links{opacity:1;visibility:visible;transform:translateY(0)}
.nav-item>label,.nav-item>a,.nav-item>.nav-a{padding:13px 12px}
.nav-dd{position:static;background:rgba(255,255,255,.06);box-shadow:none;padding:4px 0 4px 16px;min-width:0;opacity:1;visibility:visible;transform:none;display:none;border-radius:12px}
.nav-dd-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-item .dd-switch{position:relative}
.nav-dd-toggle:checked~.nav-dd{display:block}
.nav-item .caret{transition:transform .3s ease}
.nav-dd-toggle:checked~.nav-dd-label .caret{transform:rotate(180deg)}
.nav-dd a{color:rgba(255,255,255,.82)}
.nav-dd a:hover{background:rgba(255,255,255,.1);color:#fff}
.nav-cta{display:none}
}
@media(max-width:768px){
.sec{padding:64px 0}
.sec-title{font-size:28px}
.hero h1{font-size:32px}
.cards,.scenario,.testi,.news-grid,.speed-strip,.steps,.req-grid,.install-steps,.sitemap-links{grid-template-columns:1fr}
.pricing{grid-template-columns:1fr;max-width:420px;margin:0 auto}
.plan.pop{transform:none}
.article-in{padding:26px 20px}
.article h1{font-size:24px}
.foot-in{grid-template-columns:1fr 1fr}
.hero-stats{gap:28px}
.ver{flex-direction:column;align-items:flex-start;gap:16px}
.ver .btn{width:100%}
.demo-body{grid-template-columns:1fr}
.gauge{margin:0 auto}
.e404 .code{font-size:88px}
}
.spd-on,.t-off{display:none}
#demo-connect:checked~.demo-body .spd-on{display:inline}
#demo-connect:checked~.demo-body .spd-idle{display:none}
.demo-conn .t-off{display:none}
#demo-connect:checked~.demo-actions .demo-conn .t-on{display:none}
#demo-connect:checked~.demo-actions .demo-conn .t-off{display:inline}
#node-hk:checked~.node-hk span,#node-jp:checked~.node-jp span,#node-us:checked~.node-us span{border-color:#38bdf8;background:rgba(56,189,248,.16);color:#fff;box-shadow:0 0 0 3px rgba(56,189,248,.18)}
#node-hk:checked~.demo-body .nd-hk,#node-jp:checked~.demo-body .nd-jp,#node-us:checked~.demo-body .nd-us{display:block}
.nav-links .m-cta{display:none}
@media(max-width:992px){
.nav-links .m-cta{display:flex;align-items:center;justify-content:center;gap:8px;margin:14px 0 6px;background:var(--grad);color:#fff;border-radius:14px;padding:14px;font-weight:700;font-size:15px}
}
@media(max-width:480px){
.wrap{padding:0 16px}
.sec-title{font-size:24px}
.hero h1{font-size:27px}
.hero-btns .btn{width:100%}
.foot-in{grid-template-columns:1fr}
.foot-bottom{flex-direction:column;text-align:center}
.stat b{font-size:24px}
.btn-lg{padding:15px 30px}
.article h2{font-size:19px}
.demo{padding:18px}
.gauge{width:160px;height:160px}
}