*{margin:0;padding:0;box-sizing:border-box}
:root{--c1:#5b6cff;--c2:#8a5cff;--c3:#22c1ff;--bg:#0c1226;--ink:#1a2340;--mut:#5b6478;--line:#e7eaf5;--soft:#f6f8ff;--card:#fff;--w:#fff}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:15px;overflow-x:hidden}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
section{position:relative}
.sec{padding:88px 0}
.sec-soft{background:var(--soft)}
.sec-dark{background:var(--bg);color:#e8ecff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:12px;font-weight:600;font-size:15px;cursor:pointer;border:0;transition:.25s;line-height:1}
.btn-primary{background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;box-shadow:0 10px 24px rgba(91,108,255,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(91,108,255,.42)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-lg{padding:16px 34px;font-size:16px;border-radius:14px}
.btn-ghost-dark{border:1.5px solid var(--line);color:var(--ink);background:#fff}
.btn-ghost-dark:hover{border-color:var(--c1);color:var(--c1)}
.sec-head{text-align:center;max-width:720px;margin:0 auto 52px}
.sec-head .kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--c1);text-transform:uppercase;margin-bottom:14px}
.sec-head h2{font-size:34px;line-height:1.25;font-weight:800;margin-bottom:14px}
.sec-dark .sec-head h2{color:#fff}
.sec-head p{color:var(--mut);font-size:16px}
.sec-dark .sec-head p{color:#aab3d0}
.grad-text{background:linear-gradient(135deg,var(--c1),var(--c3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav{position:fixed;top:0;left:0;right:0;z-index:999;padding:14px 0;transition:.35s;background:transparent}
.nav.scrolled{background:rgba(10,16,38,.82);backdrop-filter:blur(14px);box-shadow:0 8px 30px rgba(0,0,0,.28);padding:9px 0}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;color:#fff}
.brand img{width:40px;height:40px;border-radius:9px}
.menu-list{display:flex;align-items:center;gap:6px}
.menu-list>li{position:relative}
.menu-list>li>a{display:flex;align-items:center;gap:6px;color:#e7eaff;font-size:15px;font-weight:500;padding:10px 16px;border-radius:10px;transition:.2s}
.menu-list>li>a:hover{color:#fff;background:rgba(255,255,255,.08)}
.arr{font-size:11px;transition:.3s;display:inline-block}
.menu-list>li.has-drop:hover .arr{transform:rotate(180deg)}
.drop{position:absolute;top:100%;left:0;min-width:200px;background:#fff;border-radius:14px;box-shadow:0 20px 50px rgba(10,20,50,.18);padding:10px;opacity:0;visibility:hidden;transform:translateY(10px);transition:.28s;z-index:50}
.menu-list>li.has-drop:hover .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop a{display:block;padding:10px 16px;border-radius:9px;color:var(--ink);font-size:14px;font-weight:500;transition:.18s}
.drop a:hover{background:var(--soft);color:var(--c1)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-cta .btn{padding:10px 20px;font-size:14px}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.burger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s;display:block}
.burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero{position:relative;background:radial-gradient(1100px 600px at 80% -10%,rgba(138,92,255,.5),transparent 60%),radial-gradient(900px 500px at -10% 10%,rgba(34,193,255,.35),transparent 55%),linear-gradient(160deg,#0a0f26,#151b3f 60%,#1a1140);color:#fff;padding:160px 0 100px;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:52px 52px;mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 70%);-webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 70%)}
.hero-inner{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,.18);padding:7px 16px;border-radius:100px;font-size:13px;color:#cdd6ff;margin-bottom:22px}
.hero h1{font-size:50px;line-height:1.16;font-weight:800;margin-bottom:20px}
.hero .sub{font-size:18px;color:#b9c2e6;max-width:520px;margin-bottom:32px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap}
.hstat b{display:block;font-size:30px;font-weight:800;background:linear-gradient(135deg,#fff,#9fb4ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hstat span{font-size:13px;color:#8f9cc9}
.sim{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:22px;backdrop-filter:blur(8px);box-shadow:0 30px 70px rgba(0,0,0,.35)}
.sim-top{display:flex;align-items:center;gap:8px;margin-bottom:18px}
.sim-dot{width:11px;height:11px;border-radius:50%}
.sim-dot.r{background:#ff5f57}.sim-dot.y{background:#febc2e}.sim-dot.g{background:#28c840}
.sim-bar{margin-left:auto;font-size:12px;color:#93a0cf}
.sim-body{display:flex;flex-direction:column;gap:16px}
.sim-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.sim-pill{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border-radius:100px;padding:8px 14px;font-size:13px;color:#cdd6ff}
.sim-pill.on{background:rgba(40,200,64,.18);color:#5ee07a;border:1px solid rgba(40,200,64,.4)}
.sim-node{background:rgba(255,255,255,.06);border-radius:16px;padding:16px}
.sim-node .n{font-size:14px;font-weight:700;margin-bottom:6px;display:flex;justify-content:space-between}
.sim-node .n b{color:#5ee07a}
.sim-meter{height:8px;background:rgba(255,255,255,.1);border-radius:10px;overflow:hidden}
.sim-meter i{display:block;height:100%;border-radius:10px;background:linear-gradient(90deg,var(--c1),var(--c3));width:0;transition:width 1.4s ease}
.sim-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.sim-tabs{display:flex;gap:8px}
.sim-tab{flex:1;text-align:center;padding:10px;border-radius:10px;background:rgba(255,255,255,.06);color:#b9c2e6;font-size:13px;cursor:pointer;border:1px solid transparent;transition:.2s}
.sim-tab.active{background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;border-color:transparent}
.sim-tab:hover{border-color:rgba(255,255,255,.25)}
.sim-connect{display:flex;justify-content:center}
.sim-connect .btn{width:100%}
.cards{display:grid;gap:24px}
.cards-3{grid-template-columns:repeat(3,1fr)}
.cards-4{grid-template-columns:repeat(4,1fr)}
.cards-6{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px;transition:.3s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:0 22px 44px rgba(60,80,180,.13);border-color:#cfd8ff}
.ico{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;background:linear-gradient(135deg,rgba(91,108,255,.14),rgba(34,193,255,.14));color:var(--c1)}
.card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.card p{color:var(--mut);font-size:14.5px}
.step-num{position:absolute;top:16px;right:20px;font-size:52px;font-weight:800;color:var(--soft);line-height:1;z-index:0}
.card .ico,.card h3,.card p{position:relative;z-index:1}
.nodes-band{background:linear-gradient(160deg,#0a0f26,#171c40)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:48px}
.stat{border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:24px;text-align:center;background:rgba(255,255,255,.04)}
.stat b{display:block;font-size:34px;font-weight:800;background:linear-gradient(135deg,#fff,#9fb4ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat span{font-size:13px;color:#93a0cf}
.node-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.node{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:14px 16px;color:#dfe5ff;font-size:14px;transition:.25s}
.node:hover{background:rgba(255,255,255,.1);transform:translateY(-3px)}
.node .flag{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--c1),var(--c3));display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.node .lat{margin-left:auto;font-size:12px;color:#7ce28f}
.tags{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.tag{display:inline-flex;align-items:center;gap:8px;background:var(--soft);border:1px solid var(--line);border-radius:100px;padding:12px 24px;font-weight:600;font-size:15px;color:var(--ink);transition:.25s}
.tag:hover{border-color:var(--c1);color:var(--c1);transform:translateY(-3px);box-shadow:0 10px 20px rgba(91,108,255,.15)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:34px 30px;transition:.3s;position:relative;display:flex;flex-direction:column}
.plan:hover{transform:translateY(-6px);box-shadow:0 22px 44px rgba(60,80,180,.13)}
.plan.hot{background:linear-gradient(160deg,#131a3c,#241752);color:#fff;border:1px solid transparent;box-shadow:0 24px 50px rgba(80,80,200,.35);transform:scale(1.03)}
.plan.hot:hover{transform:scale(1.03) translateY(-4px)}
.plan .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--c1),var(--c3));color:#fff;font-size:12px;font-weight:700;padding:6px 16px;border-radius:100px;letter-spacing:1px}
.plan h3{font-size:20px;margin-bottom:6px}
.plan .desc{font-size:13px;color:var(--mut);margin-bottom:22px}
.plan.hot .desc{color:#aab3d0}
.plan .price{font-size:44px;font-weight:800;line-height:1;margin-bottom:6px}
.plan .price small{font-size:16px;font-weight:500}
.plan .per{font-size:13px;color:var(--mut);margin-bottom:24px}
.plan.hot .per{color:#aab3d0}
.plan ul{margin-bottom:26px;flex:1}
.plan li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:14.5px;color:#3a4468}
.plan.hot li{color:#d6dcf5}
.plan li::before{content:"✓";color:var(--c1);font-weight:700;flex-shrink:0}
.plan.hot li::before{color:#5ee07a}
.plan .btn{width:100%}
.faq-list{max-width:820px;margin:0 auto}
.faq{background:var(--card);border:1px solid var(--line);border-radius:16px;margin-bottom:16px;overflow:hidden;transition:.25s}
.faq.open{border-color:#cfd8ff;box-shadow:0 12px 28px rgba(60,80,180,.12)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;font-size:16.5px;font-weight:700;color:var(--ink);font-family:inherit}
.faq-q .plus{font-size:22px;color:var(--c1);transition:.3s;flex-shrink:0}
.faq.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-in{padding:0 24px 22px;color:var(--mut);font-size:14.5px}
.faq-a-in ol{margin-left:20px;margin-top:10px}
.faq-a-in li{margin-bottom:8px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ncard{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.ncard:hover{transform:translateY(-6px);box-shadow:0 22px 44px rgba(60,80,180,.14)}
.ncard img{width:100%;height:180px;object-fit:cover}
.ncard .nbody{padding:20px;display:flex;flex-direction:column;flex:1}
.ncard .meta{font-size:12px;color:var(--mut);margin-bottom:10px;display:flex;gap:12px}
.ncard h3{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.4}
.ncard p{color:var(--mut);font-size:14px;flex:1;margin-bottom:14px}
.ncard .more{color:var(--c1);font-weight:600;font-size:14px}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testi{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px;transition:.3s}
.testi:hover{transform:translateY(-5px);box-shadow:0 18px 36px rgba(60,80,180,.12)}
.stars{color:#ffb400;font-size:16px;letter-spacing:2px;margin-bottom:14px}
.testi p{color:#3a4468;font-size:15px;margin-bottom:20px}
.testi .who{display:flex;align-items:center;gap:12px}
.testi .av{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--c1),var(--c2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}
.testi .who b{display:block;font-size:15px}
.testi .who span{font-size:13px;color:var(--mut)}
.cta{background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;text-align:center;border-radius:28px;padding:64px 40px;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 20%,rgba(255,255,255,.18),transparent 40%),radial-gradient(circle at 80% 80%,rgba(255,255,255,.14),transparent 40%)}
.cta h2{font-size:36px;font-weight:800;margin-bottom:14px;position:relative}
.cta p{font-size:16px;margin-bottom:30px;opacity:.92;position:relative}
.cta .btn{position:relative}
.footer{background:var(--bg);color:#aab3d0;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;margin-bottom:44px}
.footer .brand{color:#fff;margin-bottom:16px}
.footer-about{color:#7e89ab;font-size:14px;max-width:300px}
.footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer ul li{margin-bottom:12px}
.footer ul a{color:#aab3d0;font-size:14px;transition:.2s}
.footer ul a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:13px;color:#6d779b}
.page-head{background:linear-gradient(160deg,#0a0f26,#171c40);color:#fff;padding:150px 0 70px;text-align:center}
.page-head h1{font-size:40px;font-weight:800;margin-bottom:14px}
.page-head p{color:#aab3d0;max-width:640px;margin:0 auto}
.crumb{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#8f9cc9;margin-bottom:16px}
.crumb a:hover{color:#fff}
.sys-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:900px;margin:0 auto}
.sys{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center}
.sys b{display:block;font-size:15px;margin-bottom:6px}
.sys span{color:var(--mut);font-size:13px}
.steps-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:st}
.step{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px;position:relative}
.step::before{counter-increment:st;content:counter(st);position:absolute;top:18px;right:20px;font-size:46px;font-weight:800;color:var(--soft)}
.step .ico{margin-bottom:14px}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;text-align:center;transition:.3s;display:flex;flex-direction:column}
.dl-card:hover{transform:translateY(-6px);box-shadow:0 22px 44px rgba(60,80,180,.14);border-color:#cfd8ff}
.dl-card .os{font-size:44px;margin-bottom:14px}
.dl-card h3{font-size:20px;margin-bottom:4px}
.dl-card .ver{color:var(--c1);font-weight:700;font-size:14px;margin-bottom:18px}
.dl-card ul{text-align:left;margin-bottom:24px;flex:1}
.dl-card li{padding:7px 0;color:var(--mut);font-size:14px;display:flex;gap:8px}
.dl-card li::before{content:"✓";color:var(--c1);font-weight:700}
.dl-card .btn{width:100%}
.article{max-width:820px;margin:0 auto}
.article .meta{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;font-size:13px;color:#8f9cc9;margin-bottom:30px}
.article .cat{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);padding:4px 14px;border-radius:100px}
.article-body{background:#fff;border-radius:22px;padding:50px 54px;margin-top:-40px;box-shadow:0 30px 70px rgba(20,30,80,.1);position:relative;z-index:2}
.article-body h2{font-size:24px;margin:34px 0 14px;line-height:1.4}
.article-body p{color:#3a4468;margin-bottom:18px;font-size:15.5px}
.article-body img{width:100%;border-radius:14px;margin:20px 0}
.article-body figcaption{font-size:12px;color:var(--mut);text-align:center;margin-bottom:10px}
.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
.article-nav a{font-size:14px;color:var(--c1);font-weight:600}
.article-nav a.disabled{color:#b8bfd4;pointer-events:none}
.back-list{display:inline-block;margin-top:24px;font-size:14px;color:var(--c1);font-weight:600}
.cover-img{width:100%;height:420px;object-fit:cover;position:absolute;top:0;left:0;z-index:0}
.page-head.has-cover{position:relative;padding-top:210px;padding-bottom:120px}
.sitemap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.sitemap h4{font-size:17px;margin-bottom:16px;color:var(--ink)}
.sitemap ul li{margin-bottom:10px}
.sitemap ul a{color:var(--mut);font-size:14.5px}
.sitemap ul a:hover{color:var(--c1)}
.err-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(800px 500px at 50% 30%,rgba(138,92,255,.4),transparent 60%),linear-gradient(160deg,#0a0f26,#1a1140);color:#fff;text-align:center;padding:40px}
.err-code{font-size:130px;font-weight:800;line-height:1;background:linear-gradient(135deg,#fff,#9fb4ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.err-wrap h1{font-size:26px;margin:16px 0}
.err-wrap p{color:#aab3d0;margin-bottom:28px}
.err-wrap .btn{margin-right:12px}
.countdown{color:var(--c3);font-weight:700}
@media(max-width:992px){.burger{display:flex}.menu-list{position:fixed;top:64px;left:0;right:0;background:rgba(10,16,38,.97);backdrop-filter:blur(14px);flex-direction:column;align-items:stretch;padding:16px 24px 28px;gap:4px;transform:translateY(-120%);transition:.35s;max-height:calc(100vh - 64px);overflow-y:auto}.menu-list.open{transform:translateY(0)}.menu-list>li>a{justify-content:space-between;font-size:16px;padding:14px 12px}.drop{position:static;opacity:1;visibility:visible;transform:none;background:rgba(255,255,255,.05);box-shadow:none;padding:6px;display:none;border-radius:10px;margin:0 0 8px}.drop.show{display:block}.drop a{color:#d6dcf5;padding:11px 16px}.drop a:hover{background:rgba(255,255,255,.08)}.hero-inner{grid-template-columns:1fr}.hero{padding-top:130px}.hero h1{font-size:38px}.cards-3,.cards-6,.news-grid,.testi-grid,.dl-grid,.sys-list,.sitemap-grid{grid-template-columns:repeat(2,1fr)}.cards-4,.node-grid,.stat-grid,.steps-4{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.pricing-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}.plan.hot{transform:none}.plan.hot:hover{transform:translateY(-6px)}.article-body{padding:36px 28px}}
@media(max-width:768px){.sec{padding:60px 0}.sec-head h2{font-size:27px}.hero h1{font-size:31px}.hero{padding-top:118px}.hero-stats{gap:24px}.hstat b{font-size:24px}.cards-3,.cards-6,.news-grid,.testi-grid,.dl-grid,.sys-list,.node-grid,.stat-grid,.steps-4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.cta h2{font-size:27px}.err-code{font-size:90px}.page-head h1{font-size:30px}.page-head{padding-top:130px}}
@media(max-width:480px){.container{padding:0 18px}.hero h1{font-size:27px}.hero .sub{font-size:16px}.btn-lg{padding:14px 26px;font-size:15px}.sec-head h2{font-size:24px}.nav-cta .btn-ghost{display:none}.article-body{padding:28px 20px}.cover-img{height:280px}.page-head.has-cover{padding-top:150px}.sim{padding:16px}.sim-grid{grid-template-columns:1fr}.brand span{font-size:18px}}