:root{--c1:#4f6bff;--c2:#8b5cf6;--c3:#22d3ee;--bg:#0b1020;--bg2:#0f1730;--card:#151d3b;--txt:#e7ecff;--mut:#9aa6cf;--line:rgba(255,255,255,.08);--grad:linear-gradient(135deg,#4f6bff 0%,#8b5cf6 50%,#22d3ee 100%);--radius:16px;--shadow:0 20px 50px rgba(5,10,30,.55)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}ul{list-style:none}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}.container{width:min(1200px,92%);margin:0 auto}.grad-text{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:13px 28px;border-radius:50px;font-weight:600;font-size:15px;transition:.3s;white-space:nowrap}.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px rgba(79,107,255,.4)}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(139,92,246,.5)}.btn-ghost{border:1.5px solid rgba(255,255,255,.4);color:#fff;background:transparent}.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}.section{padding:90px 0}.sec-tag{display:inline-block;padding:6px 16px;border-radius:30px;background:rgba(79,107,255,.15);color:#8ea2ff;font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:16px}.sec-title{font-size:38px;font-weight:800;line-height:1.3;margin-bottom:14px}.sec-desc{color:var(--mut);font-size:17px;max-width:680px}.sec-center{text-align:center}.sec-center .sec-desc{margin:0 auto}.grid{display:grid;gap:24px}
header.nav{position:fixed;top:0;left:0;right:0;z-index:999;transition:.35s;padding:18px 0}.nav .container{display:flex;align-items:center;justify-content:space-between;gap:20px}.nav.scrolled{background:rgba(10,15,35,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 6px 30px rgba(0,0,0,.4);padding:12px 0}.nav .logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800}.nav .logo img{width:36px;height:36px;border-radius:8px}.nav-menu{display:flex;align-items:center;gap:6px}.nav-item{position:relative}.nav-item>a,.nav-item>.drop-toggle{display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:10px;font-size:15px;font-weight:500;color:#dbe2ff;transition:.25s}.nav-item>a:hover,.nav-item>.drop-toggle:hover{background:rgba(255,255,255,.08);color:#fff}.nav-item .caret{display:inline-block;transition:transform .3s;font-size:11px}.nav-item:hover .caret{transform:rotate(180deg)}.dropdown{position:absolute;top:calc(100% + 12px);left:0;min-width:210px;background:#fff;color:#1a2340;border-radius:14px;box-shadow:0 24px 60px rgba(0,0,0,.35);padding:10px;opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s}.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}.dropdown a{display:block;padding:10px 14px;border-radius:8px;font-size:14px;color:#34405f;transition:.2s}.dropdown a:hover{background:#eef1ff;color:var(--c1)}.nav-cta{display:flex;align-items:center;gap:12px}.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}.nav-toggle span{width:24px;height:2px;background:#fff;transition:.3s;border-radius:2px}.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero{position:relative;padding:170px 0 100px;background:radial-gradient(ellipse at 20% 10%,rgba(79,107,255,.25),transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(34,211,238,.15),transparent 45%),var(--bg)}.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}.hero h1{font-size:52px;font-weight:900;line-height:1.2;margin-bottom:20px}.hero .lead{font-size:19px;color:var(--mut);margin-bottom:30px;max-width:520px}.hero .cta-row{display:flex;gap:16px;margin-bottom:36px;flex-wrap:wrap}.hero .stats{display:flex;gap:36px}.hero .stat b{display:block;font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero .stat span{font-size:14px;color:var(--mut)}.simulator{position:relative;background:var(--bg2);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow)}.sim-head{display:flex;gap:6px;margin-bottom:20px}.sim-head i{width:12px;height:12px;border-radius:50%;background:#ff5f57}.sim-head i:nth-child(2){background:#febc2e}.sim-head i:nth-child(3){background:#28c840}.sim-body{display:flex;flex-direction:column;gap:14px}.sim-row{display:flex;justify-content:space-between;align-items:center;background:rgba(255,255,255,.04);border-radius:12px;padding:14px 16px}.sim-row .lbl{color:var(--mut);font-size:14px}.sim-row .val{font-weight:700;font-size:18px}.sim-row .val.good{color:#34d399}.sim-btn{width:100%;margin-top:8px}.sim-note{text-align:center;color:var(--mut);font-size:13px;margin-top:14px}.badge{display:inline-flex;align-items:center;gap:6px;background:rgba(52,211,153,.15);color:#34d399;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}
.steps .grid{grid-template-columns:repeat(3,1fr)}.step-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;transition:.3s;position:relative;overflow:hidden}.step-card:hover{transform:translateY(-6px);border-color:rgba(79,107,255,.5)}.step-num{position:absolute;top:16px;right:20px;font-size:64px;font-weight:900;color:rgba(255,255,255,.05)}.step-icon{width:58px;height:58px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;color:#fff}.step-card h3{font-size:20px;margin-bottom:10px}.step-card p{color:var(--mut);font-size:15px}
.features .grid{grid-template-columns:repeat(3,1fr)}.feat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.3s}.feat-card:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.5);box-shadow:0 18px 40px rgba(0,0,0,.4)}.feat-icon{width:54px;height:54px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px;background:rgba(79,107,255,.15)}.feat-card h3{font-size:19px;margin-bottom:9px}.feat-card p{color:var(--mut);font-size:14.5px}
.perf{background:var(--bg2)}.perf-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:50px}.perf-item{text-align:center;padding:30px 16px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}.perf-item b{display:block;font-size:36px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.perf-item span{color:var(--mut);font-size:14px}.nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.node{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;align-items:center;gap:12px;transition:.3s}.node:hover{border-color:rgba(34,211,238,.5)}.node .dot{width:10px;height:10px;border-radius:50%;background:#34d399;box-shadow:0 0 10px #34d399;flex-shrink:0}.node b{font-size:15px;display:block}.node span{font-size:12px;color:var(--mut)}
.scenes .grid{grid-template-columns:repeat(3,1fr)}.scene-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.3s}.scene-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.5)}.scene-icon{width:52px;height:52px;border-radius:12px;background:rgba(34,211,238,.13);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}.scene-card h3{font-size:19px;margin-bottom:9px}.scene-card p{color:var(--mut);font-size:14.5px}
.protocols{background:var(--bg2);padding:70px 0}.proto-wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}.proto{background:var(--card);border:1px solid var(--line);border-radius:40px;padding:14px 26px;font-weight:600;font-size:15px;display:flex;align-items:center;gap:8px;transition:.3s}.proto:hover{border-color:var(--c1);transform:translateY(-3px)}.proto .ico{font-size:18px}
.pricing .grid{grid-template-columns:repeat(3,1fr);align-items:stretch}.price-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:38px 30px;position:relative;transition:.3s;display:flex;flex-direction:column}.price-card:hover{transform:translateY(-6px)}.price-card.pop{background:linear-gradient(160deg,#1a2350,#2a1a50);border:2px solid transparent;border-image:linear-gradient(135deg,#4f6bff,#8b5cf6,#22d3ee) 1;box-shadow:0 24px 60px rgba(79,107,255,.3)}.pop-tag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:6px 18px;border-radius:20px;white-space:nowrap}.price-card h3{font-size:20px;margin-bottom:8px}.price-card .price{font-size:44px;font-weight:900;margin:12px 0}.price-card .price small{font-size:16px;font-weight:500;color:var(--mut)}.price-card ul{flex:1;margin-bottom:26px}.price-card li{padding:9px 0;color:var(--mut);font-size:15px;display:flex;gap:10px;align-items:flex-start}.price-card li::before{content:"✓";color:#34d399;font-weight:700}.price-card .btn{width:100%}
.faq{max-width:820px;margin:0 auto}.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:14px;background:var(--card);overflow:hidden}.faq-q{width:100%;text-align:left;padding:20px 22px;display:flex;justify-content:space-between;align-items:center;font-size:17px;font-weight:600;transition:.2s}.faq-q:hover{color:#fff}.faq-q .arrow{transition:.3s;font-size:13px;color:var(--mut)}.faq-item.active .arrow{transform:rotate(180deg);color:var(--c3)}.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--mut);font-size:15px}.faq-a-inner{padding:0 22px 22px}.faq-a ol{margin:8px 0 0 18px}.faq-a li{margin:6px 0}
.news .grid{grid-template-columns:repeat(3,1fr)}.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}.news-card:hover{transform:translateY(-6px);border-color:rgba(79,107,255,.5)}.news-card img{height:190px;width:100%;object-fit:cover}.news-card .body{padding:22px;flex:1;display:flex;flex-direction:column}.news-card .cat{color:var(--c3);font-size:12px;font-weight:600;margin-bottom:8px}.news-card h3{font-size:17px;margin-bottom:10px;line-height:1.5}.news-card p{color:var(--mut);font-size:14px;flex:1;margin-bottom:14px}.news-card .more{color:#8ea2ff;font-weight:600;font-size:14px}
.testi .grid{grid-template-columns:repeat(3,1fr)}.testi-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.testi-card .stars{color:#fbbf24;letter-spacing:2px;margin-bottom:14px;font-size:16px}.testi-card .quote{color:#c7d0ee;font-size:15px;margin-bottom:20px;font-style:italic}.testi-user{display:flex;align-items:center;gap:12px}.testi-user .ava{width:44px;height:44px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:18px}.testi-user b{display:block;font-size:15px}.testi-user span{font-size:13px;color:var(--mut)}
.cta-band{background:linear-gradient(135deg,#16205a,#2a1a50);border-radius:28px;padding:70px 40px;text-align:center;position:relative;overflow:hidden}.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(79,107,255,.4),transparent 60%)}.cta-band h2{font-size:38px;font-weight:900;margin-bottom:16px;position:relative}.cta-band p{color:var(--mut);margin-bottom:30px;position:relative;font-size:17px}.cta-band .btn{position:relative}
footer{background:#070b18;padding:60px 0 30px;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}.footer-brand p{color:var(--mut);font-size:14px;margin-top:14px;max-width:260px}.footer-col h4{font-size:16px;margin-bottom:18px}.footer-col a{display:block;color:var(--mut);font-size:14px;padding:6px 0;transition:.2s}.footer-col a:hover{color:#fff}.footer-bottom{border-top:1px solid var(--line);padding-top:24px;text-align:center;color:var(--mut);font-size:13px}
.back-top{position:fixed;bottom:28px;right:28px;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(79,107,255,.5);opacity:0;visibility:hidden;transition:.3s;z-index:998}.back-top.show{opacity:1;visibility:visible}
.dl-hero{padding:160px 0 80px;background:radial-gradient(ellipse at 50% 0%,rgba(79,107,255,.25),transparent 55%),var(--bg);text-align:center}.dl-hero h1{font-size:46px;font-weight:900;margin-bottom:16px}.dl-hero p{color:var(--mut);font-size:18px;max-width:640px;margin:0 auto 30px}.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:40px 30px;text-align:center;transition:.3s}.dl-card:hover{transform:translateY(-6px);border-color:rgba(79,107,255,.5)}.dl-card .os{font-size:46px;margin-bottom:18px}.dl-card h3{font-size:22px;margin-bottom:10px}.dl-card p{color:var(--mut);font-size:14.5px;margin-bottom:22px}.dl-card .ver{display:block;color:var(--mut);font-size:12px;margin-top:12px}
.page-hero{padding:150px 0 60px;background:radial-gradient(ellipse at 50% 0%,rgba(79,107,255,.22),transparent 55%),var(--bg);text-align:center}.page-hero h1{font-size:40px;font-weight:900;margin-bottom:14px}.page-hero p{color:var(--mut);font-size:17px}.breadcrumb{color:var(--mut);font-size:14px;margin-top:16px}.breadcrumb a{color:#8ea2ff}.article{max-width:820px;margin:0 auto;padding:40px 0 90px}.article .meta{color:var(--mut);font-size:14px;margin:16px 0 30px;display:flex;gap:20px;flex-wrap:wrap}.article .cover{border-radius:18px;margin-bottom:34px;box-shadow:var(--shadow)}.article h2{font-size:26px;margin:36px 0 16px;font-weight:800}.article p{color:#c7d0ee;font-size:16px;margin-bottom:18px}.article .fig{margin:26px 0}.article .fig img{border-radius:14px}.article .fig figcaption{color:var(--mut);font-size:13px;text-align:center;margin-top:10px}.article blockquote{border-left:4px solid var(--c1);background:var(--card);padding:20px 24px;border-radius:0 12px 12px 0;margin:26px 0;color:#dbe2ff;font-style:italic}.article-nav{display:flex;justify-content:space-between;gap:20px;margin-top:50px;padding-top:24px;border-top:1px solid var(--line)}.article-nav a{color:#8ea2ff;font-weight:600}.article-nav .back{color:var(--mut)}.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;padding:40px 0 90px}.sitemap{max-width:900px;margin:0 auto;padding:40px 0 90px}.sitemap h2{font-size:22px;margin:32px 0 16px}.sitemap ul{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}.sitemap li{padding:8px 0;border-bottom:1px solid var(--line)}.sitemap li:last-child{border-bottom:none}.sitemap a{color:#8ea2ff}.err404{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px}.err404 .code{font-size:120px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}.err404 h2{font-size:28px;margin:20px 0 12px}.err404 p{color:var(--mut);margin-bottom:30px}.err404 .countdown{color:var(--c3);font-weight:700}
@media(max-width:992px){.nav-toggle{display:flex}.nav-menu{position:fixed;top:0;right:-100%;width:min(320px,85%);height:100vh;background:#0d1430;flex-direction:column;align-items:flex-start;gap:4px;padding:90px 24px 40px;transition:.35s;box-shadow:-10px 0 40px rgba(0,0,0,.5);overflow-y:auto;z-index:1001}.nav-menu.open{right:0}.nav-item{width:100%}.nav-item>a,.nav-item>.drop-toggle{width:100%;justify-content:space-between;font-size:16px;padding:12px 14px}.dropdown{position:static;opacity:1;visibility:visible;transform:none;background:rgba(255,255,255,.05);color:#dbe2ff;box-shadow:none;min-width:0;display:none;margin:4px 0}.dropdown.open{display:block}.dropdown a{color:#c7d0ee;padding:10px 20px}.nav-cta{margin-left:0}.nav-cta .btn{padding:10px 18px;font-size:14px}.hero .container{grid-template-columns:1fr}.hero h1{font-size:40px}.perf-stats{grid-template-columns:repeat(2,1fr)}.nodes{grid-template-columns:repeat(2,1fr)}.features .grid,.scenes .grid,.steps .grid,.pricing .grid,.news .grid,.testi .grid,.dl-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.news-list{grid-template-columns:1fr}}
@media(max-width:768px){.section{padding:64px 0}.sec-title{font-size:30px}.hero{padding:130px 0 70px}.hero h1{font-size:32px}.hero .lead{font-size:16px}.hero .stats{gap:20px}.hero .stat b{font-size:24px}.features .grid,.scenes .grid,.steps .grid,.pricing .grid,.news .grid,.testi .grid,.dl-grid{grid-template-columns:1fr}.perf-stats{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr}.cta-band{padding:50px 24px}.cta-band h2{font-size:28px}.dl-hero h1{font-size:34px}}
@media(max-width:480px){.sec-title{font-size:26px}.hero h1{font-size:27px}.btn{padding:11px 20px;font-size:14px}.nodes{grid-template-columns:1fr 1fr}.perf-stats{grid-template-columns:1fr 1fr}.nav-cta .btn-ghost{display:none}.stats{gap:14px;flex-wrap:wrap}.article h2{font-size:22px}.err404 .code{font-size:90px}}