:root{--bg:#0a0f1e;--bg2:#0e1630;--card:#121c38;--card2:#16234a;--primary:#00e5ff;--primary2:#38bdf8;--accent:#7c5cff;--green:#34d399;--amber:#fbbf24;--text:#e8eefb;--muted:#93a4c4;--line:rgba(147,164,196,.14);--radius:18px;--serif:"Songti SC","STSong","Noto Serif SC",Georgia,"Times New Roman",serif;--sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);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}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.serif{font-family:var(--serif)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:60px;font-weight:600;font-size:16px;cursor:pointer;border:none;transition:.3s}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#04202a;box-shadow:0 8px 30px rgba(0,229,255,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(0,229,255,.5)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-accent{background:linear-gradient(135deg,var(--accent),#a78bfa);color:#fff;box-shadow:0 8px 30px rgba(124,92,255,.35)}
.btn-accent:hover{transform:translateY(-3px)}
section{padding:90px 0;position:relative}
.sec-head{text-align:center;max-width:760px;margin:0 auto 56px}
.sec-tag{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--primary);text-transform:uppercase;margin-bottom:14px;font-weight:700}
.sec-title{font-family:var(--serif);font-size:40px;font-weight:700;line-height:1.25;margin-bottom:16px}
.sec-desc{color:var(--muted);font-size:17px}
.topbar{position:fixed;top:0;left:0;right:0;z-index:100;transition:.35s;padding:16px 0}
.topbar.scrolled{background:rgba(10,15,30,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);padding:10px 0}
.nav{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;font-family:var(--serif)}
.logo img{width:38px;height:38px;border-radius:9px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:15px;color:var(--muted);transition:.25s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--primary);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:14px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.hamburger span{width:24px;height:2px;background:var(--text);transition:.3s}
.hero{padding:170px 0 90px;background:radial-gradient(1200px 600px at 80% -10%,rgba(0,229,255,.16),transparent 60%),radial-gradient(900px 500px at 10% 110%,rgba(124,92,255,.18),transparent 60%),linear-gradient(180deg,var(--bg),var(--bg2))}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,255,.1);border:1px solid rgba(0,229,255,.3);color:var(--primary);padding:8px 16px;border-radius:40px;font-size:14px;margin-bottom:22px}
.hero h1{font-family:var(--serif);font-size:56px;font-weight:800;line-height:1.15;margin-bottom:22px}
.hero h1 span{background:linear-gradient(135deg,var(--primary),var(--primary2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:19px;color:var(--muted);margin-bottom:34px;max-width:520px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap}
.stat b{display:block;font-size:30px;font-family:var(--serif);color:var(--text)}
.stat span{font-size:13px;color:var(--muted)}
.simulator{position:relative;border-radius:22px;background:linear-gradient(160deg,#0e1630,#16234a);border:1px solid var(--line);padding:20px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.sim-head{display:flex;align-items:center;gap:8px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px}
.dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.sim-title{margin-left:10px;font-size:14px;color:var(--muted)}
.sim-body{display:flex;flex-direction:column;gap:14px}
.sim-row{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:14px;padding:14px 18px}
.sim-node{display:flex;align-items:center;gap:10px;font-size:14px}
.sim-node .ico{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:rgba(0,229,255,.12);color:var(--primary)}
.sim-ping{font-size:14px;color:var(--green);font-weight:600}
.sim-speed{font-family:var(--serif);font-size:34px;font-weight:800;color:var(--primary);text-align:center;padding:10px 0}
.sim-bar{height:8px;border-radius:6px;background:rgba(255,255,255,.06);overflow:hidden}
.sim-bar i{display:block;height:100%;width:78%;background:linear-gradient(90deg,var(--primary),var(--green));border-radius:6px;animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{width:64%}50%{width:88%}}
.features{background:var(--bg)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:.35s;position:relative;overflow:hidden}
.fcard::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:.35s}
.fcard:hover{transform:translateY(-8px);border-color:rgba(0,229,255,.4);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.fcard:hover::before{opacity:1}
.fcard .ic{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;background:rgba(0,229,255,.1);color:var(--primary);margin-bottom:20px}
.fcard h3{font-family:var(--serif);font-size:21px;margin-bottom:12px}
.fcard p{color:var(--muted);font-size:15px}
.notice{background:linear-gradient(135deg,rgba(124,92,255,.12),rgba(0,229,255,.08));border:1px solid var(--line);border-radius:var(--radius)}
.notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.notice h3{font-family:var(--serif);font-size:26px;margin-bottom:12px}
.notice p{color:var(--muted);font-size:15px}
.trust{background:var(--bg2)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tcard{text-align:center;padding:30px 20px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.tcard b{display:block;font-family:var(--serif);font-size:34px;color:var(--primary);margin-bottom:8px}
.tcard span{font-size:14px;color:var(--muted)}
.scene{background:var(--bg)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scard{border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--line);transition:.35s}
.scard:hover{transform:translateY(-8px);border-color:rgba(0,229,255,.4)}
.scard .cover{height:160px;background:linear-gradient(135deg,rgba(0,229,255,.2),rgba(124,92,255,.2));display:flex;align-items:center;justify-content:center;font-size:46px}
.scard .body{padding:22px}
.scard h3{font-family:var(--serif);font-size:19px;margin-bottom:8px}
.scard p{color:var(--muted);font-size:14px}
.news{background:var(--bg2)}
.tabs{display:flex;justify-content:center;gap:12px;margin-bottom:36px;flex-wrap:wrap}
.tab{padding:10px 24px;border-radius:40px;background:var(--card);border:1px solid var(--line);color:var(--muted);cursor:pointer;font-size:15px;transition:.3s}
.tab.active,.tab:hover{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#04202a;border-color:transparent}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ncard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.ncard:hover{transform:translateY(-8px);border-color:rgba(0,229,255,.4);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.ncard .thumb{height:170px;overflow:hidden}
.ncard .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.ncard:hover .thumb img{transform:scale(1.08)}
.ncard .body{padding:22px;display:flex;flex-direction:column;flex:1}
.ncard .meta{font-size:13px;color:var(--muted);margin-bottom:10px}
.ncard h3{font-family:var(--serif);font-size:18px;line-height:1.45;margin-bottom:10px}
.ncard h3 a:hover{color:var(--primary)}
.ncard p{color:var(--muted);font-size:14px;flex:1}
.ncard .more{color:var(--primary);font-size:14px;font-weight:600;margin-top:14px}
.download{background:radial-gradient(900px 500px at 50% 0,rgba(0,229,255,.14),transparent 60%),var(--bg)}
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.dlcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 20px;text-align:center;transition:.35s}
.dlcard:hover{transform:translateY(-8px);border-color:rgba(0,229,255,.4)}
.dlcard .ic{width:60px;height:60px;margin:0 auto 16px;border-radius:16px;display:flex;align-items:center;justify-content:center;background:rgba(0,229,255,.1);color:var(--primary);font-size:26px}
.dlcard h3{font-family:var(--serif);font-size:18px;margin-bottom:6px}
.dlcard span{font-size:13px;color:var(--muted);display:block;margin-bottom:18px}
.faq{background:var(--bg2)}
.faq-list{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%;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;background:none;border:none;color:var(--text);font-size:17px;font-weight:600;cursor:pointer;text-align:left;font-family:var(--sans)}
.faq-q .ic{transition:.3s;color:var(--primary);flex-shrink:0;margin-left:12px}
.faq-item.open .faq-q .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-a-inner ol{padding-left:20px;margin-top:10px}
.faq-a-inner li{margin-bottom:8px}
.cta{background:linear-gradient(135deg,#0e1630,#1c1b4b);text-align:center;border-radius:28px;padding:70px 40px;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(500px 300px at 50% 0,rgba(0,229,255,.2),transparent 60%)}
.cta h2{font-family:var(--serif);font-size:40px;margin-bottom:16px;position:relative}
.cta p{color:var(--muted);margin-bottom:32px;position:relative}
.cta .btn{position:relative}
footer{background:#070b16;border-top:1px solid var(--line);padding:60px 0 30px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
.foot-grid h4{font-size:16px;margin-bottom:16px}
.foot-grid a{display:block;color:var(--muted);font-size:14px;margin-bottom:10px;transition:.25s}
.foot-grid a:hover{color:var(--primary)}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;text-align:center;color:var(--muted);font-size:13px}
.page-hero{padding:150px 0 60px;background:radial-gradient(800px 400px at 50% -10%,rgba(0,229,255,.14),transparent 60%),linear-gradient(180deg,var(--bg),var(--bg2));text-align:center}
.page-hero h1{font-family:var(--serif);font-size:44px;margin-bottom:14px}
.breadcrumb{display:flex;justify-content:center;gap:8px;color:var(--muted);font-size:14px}
.breadcrumb a:hover{color:var(--primary)}
.article{max-width:820px;margin:0 auto;padding:40px 24px 90px}
.article .a-meta{display:flex;gap:18px;color:var(--muted);font-size:14px;margin-bottom:24px;flex-wrap:wrap}
.article h2{font-family:var(--serif);font-size:28px;margin:34px 0 16px;line-height:1.35}
.article p{color:#c7d2ea;margin-bottom:18px;font-size:16.5px;text-align:justify}
.article figure{margin:26px 0}
.article figure img{border-radius:14px;width:100%}
.article figure figcaption{color:var(--muted);font-size:13px;text-align:center;margin-top:8px}
.article blockquote{border-left:3px solid var(--primary);padding:14px 20px;background:rgba(0,229,255,.06);border-radius:0 12px 12px 0;margin:24px 0;color:var(--text)}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:50px;flex-wrap:wrap}
.pager a{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 22px;transition:.3s;max-width:48%}
.pager a:hover{border-color:var(--primary)}
.pager .lbl{font-size:12px;color:var(--muted);display:block;margin-bottom:4px}
.pager .t{font-weight:600;font-size:15px}
.back-list{display:inline-block;margin-top:36px;color:var(--primary);font-weight:600}
.sitemap{max-width:820px;margin:0 auto;padding:30px 24px 90px}
.sitemap h2{font-family:var(--serif);font-size:22px;margin:30px 0 14px;color:var(--primary)}
.sitemap ul{padding-left:0}
.sitemap li{margin-bottom:10px}
.sitemap a{color:var(--muted)}
.sitemap a:hover{color:var(--primary)}
.notfound{min-height:80vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}
.notfound .code{font-family:var(--serif);font-size:120px;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.notfound h1{font-family:var(--serif);font-size:30px;margin:20px 0 12px}
.notfound p{color:var(--muted);margin-bottom:28px}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
@media(max-width:992px){.hero-grid{grid-template-columns:1fr}.features-grid{grid-template-columns:repeat(2,1fr)}.trust-grid{grid-template-columns:repeat(2,1fr)}.scene-grid{grid-template-columns:repeat(2,1fr)}.news-grid{grid-template-columns:repeat(2,1fr)}.dl-grid{grid-template-columns:repeat(3,1fr)}.foot-grid{grid-template-columns:1fr 1fr}.hero h1{font-size:42px}.nav-links{display:none}.hamburger{display:flex}}
@media(max-width:768px){.features-grid{grid-template-columns:1fr}.scene-grid{grid-template-columns:1fr}.news-grid{grid-template-columns:1fr}.dl-grid{grid-template-columns:repeat(2,1fr)}.notice-grid{grid-template-columns:1fr}.sec-title{font-size:32px}.hero{padding:140px 0 70px}.hero h1{font-size:34px}}
@media(max-width:480px){.trust-grid{grid-template-columns:1fr}.dl-grid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}.hero-stats{flex-direction:column;gap:14px}.hero h1{font-size:30px}.sec-title{font-size:28px}}