:root{--bg:#05070f;--bg2:#0a1022;--line:rgba(120,170,255,.14);--tx:#e8eefc;--mut:#8ea2c8;--c1:#5ee7ff;--c2:#7b6cff}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{background:radial-gradient(1200px 600px at 80% -10%,rgba(123,108,255,.18),transparent 60%),radial-gradient(900px 500px at 0% 10%,rgba(94,231,255,.10),transparent 60%),var(--bg);color:var(--tx);font:16px/1.8 "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.top{position:sticky;top:0;z-index:9;background:rgba(5,7,15,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px}.brand b{display:block;font-size:18px;letter-spacing:2px}.brand small{display:block;font-size:11px;color:var(--mut);letter-spacing:1.5px;line-height:1}
.nav{display:flex;gap:26px;font-size:15px}.nav a{color:var(--mut);transition:.2s}.nav a:hover,.nav a.on{color:var(--tx)}.nav a.on{text-shadow:0 0 14px var(--c1)}
.menu{display:none;background:none;border:1px solid var(--line);color:var(--tx);font-size:20px;border-radius:8px;padding:2px 10px}
.crumb{font-size:13px;color:var(--mut);padding-top:18px}.crumb a:hover{color:var(--c1)}
.hero{padding:90px 0 60px}.hgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{color:var(--c1);letter-spacing:4px;font-size:13px;margin-bottom:16px}
h1{font-size:clamp(34px,5vw,60px);line-height:1.2;font-weight:700;letter-spacing:1px}
.grad{background:linear-gradient(90deg,var(--c1),var(--c2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--mut);font-size:18px;margin:22px 0 0;max-width:720px}
.btns{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 30px;border-radius:999px;background:linear-gradient(90deg,var(--c1),var(--c2));color:#05070f;font-weight:600;box-shadow:0 0 30px rgba(94,231,255,.35);transition:.25s}.btn:hover{transform:translateY(-2px);box-shadow:0 0 44px rgba(123,108,255,.55)}
.btn.ghost{background:transparent;color:var(--tx);border:1px solid var(--line);box-shadow:none}.btn.ghost:hover{border-color:var(--c1)}
.hero-art{width:100%;filter:drop-shadow(0 0 40px rgba(94,231,255,.25))}
.beams path{stroke-dasharray:8 10;animation:flow 2.4s linear infinite}@keyframes flow{to{stroke-dashoffset:-36}}
.sec{padding:70px 24px}.st{font-size:clamp(26px,3vw,36px);font-weight:600;margin-bottom:12px}.st:after{content:"";display:block;width:48px;height:3px;margin-top:14px;background:linear-gradient(90deg,var(--c1),var(--c2));border-radius:2px}
.sd{color:var(--mut);margin-bottom:34px}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pcard,.card{position:relative;background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.01));border:1px solid var(--line);border-radius:18px;padding:28px;transition:.3s}
.pcard:hover,.card:hover{border-color:rgba(94,231,255,.5);transform:translateY(-4px);box-shadow:0 20px 50px -20px rgba(94,231,255,.35)}
.tag{font-size:30px;font-weight:700;letter-spacing:2px}.pcard .tag{background:linear-gradient(90deg,var(--c1),var(--c2));-webkit-background-clip:text;background-clip:text;color:transparent}
.pcard h3,.card h3{font-size:18px;margin:10px 0 8px}.pcard p,.card p{color:var(--mut);font-size:14.5px}.more{display:block;margin-top:16px;color:var(--c1);font-size:14px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:30px}
.ico{width:44px;height:44px;fill:none;stroke:var(--c1);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 8px rgba(94,231,255,.5))}
.also{margin-top:28px;padding:24px 28px;border-left:3px solid var(--c2);background:rgba(123,108,255,.06);border-radius:0 14px 14px 0}.also h3{margin-bottom:6px}.also p{color:var(--mut)}.also small{display:block;margin-top:6px}
.about p{color:var(--mut);max-width:820px;margin:20px 0 28px}
.cta{text-align:center;margin:60px auto 90px;padding:70px 24px;border:1px solid var(--line);border-radius:26px;background:radial-gradient(600px 200px at 50% 0,rgba(94,231,255,.15),transparent),var(--bg2)}.cta p{color:var(--mut);margin:14px 0 30px}
.phero{padding:70px 24px 20px}
.prose{color:#c3d0ea;max-width:900px;font-size:17px;margin-top:18px}
.tbl{overflow-x:auto;margin-top:24px;border:1px solid var(--line);border-radius:16px}
table{width:100%;border-collapse:collapse;font-size:15px}caption{text-align:left;padding:16px 20px;color:var(--mut);font-size:13px}
th,td{padding:14px 20px;border-top:1px solid var(--line);text-align:left;vertical-align:top}tbody th{color:var(--c1);font-weight:500;white-space:nowrap;width:28%}thead th{background:rgba(94,231,255,.06)}
.note{color:var(--mut);font-size:13px;margin-top:14px}
.faq{margin-top:24px}details{border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin-bottom:14px;background:rgba(255,255,255,.02)}summary{cursor:pointer;font-weight:600}details p{color:var(--mut);margin-top:10px}
.path{width:100%;height:auto}
.foot{border-top:1px solid var(--line);background:#04060c;padding-top:50px;color:var(--mut);font-size:14px}.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.foot h3{color:var(--tx);font-size:15px;margin-bottom:10px}.foot .fgrid a:not(.brand){display:block;line-height:2}.foot p{margin-top:14px}.foot a:hover{color:var(--c1)}
.legal{border-top:1px solid var(--line);margin-top:40px;padding:20px 24px;font-size:13px}
.nf{text-align:center;padding:160px 24px}.nf h1{font-size:120px}.nf .btn{margin-top:30px}.nf .lead{margin:10px auto}
@media(max-width:960px){.hgrid{grid-template-columns:1fr}.pgrid{grid-template-columns:repeat(2,1fr)}.menu{display:block}.nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;background:#060a16;border-bottom:1px solid var(--line)}.nav.open{display:flex}.nav a{padding:14px 24px}}
@media(max-width:600px){.pgrid,.fgrid{grid-template-columns:1fr}.hero{padding:50px 0 30px}.sec{padding:50px 24px}.lead{font-size:16px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/*hs*/
.nav{gap:18px;font-size:14.5px}.fgrid{grid-template-columns:1.6fr 1fr 1fr 1fr}.pgrid.g3{grid-template-columns:repeat(3,1fr)}.pgrid.g2{grid-template-columns:repeat(2,1fr)}
.zlist{list-style:none;padding:0;margin-top:22px;display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:12px}.zlist a{display:block;padding:14px 18px;border:1px solid var(--line);border-radius:12px;color:#c3d0ea;transition:.2s}.zlist a:hover{border-color:var(--c1);color:var(--tx)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.chip{padding:6px 16px;border:1px solid var(--line);border-radius:999px;color:var(--mut);font-size:14px}.chip:hover{color:var(--c1);border-color:var(--c1)}
.art{max-width:980px}.art .phero{padding-left:0;padding-right:0}.meta{color:var(--mut);font-size:13px;margin-top:16px}.defn{margin-top:10px;padding:20px 24px;border-left:3px solid var(--c1);background:rgba(94,231,255,.06);border-radius:0 14px 14px 0;color:#d6e2f7}.toc{margin-top:24px;padding:18px 24px;border:1px solid var(--line);border-radius:14px;color:var(--mut);font-size:14.5px}.toc ol{margin:8px 0 0 20px}
.art-body{max-width:none}.art-body h2{font-size:26px;margin:44px 0 12px;color:var(--tx)}.art-body h3{font-size:19px;margin:26px 0 8px;color:var(--c1);font-weight:600}.art-body p{margin-top:12px}.art-body ul{margin:12px 0 0 22px}.art-body li{margin-top:6px}.art-body a,.prose a,.note a{color:var(--c1);border-bottom:1px dashed rgba(94,231,255,.4)}.art .sec{padding:50px 0}
.tbl table:has(thead){min-width:720px}.tbl table:has(thead) tbody th{width:auto;min-width:150px;white-space:normal}caption{white-space:normal}
@media(max-width:600px){th,td{padding:10px 12px;font-size:14px}tbody th{white-space:normal;width:34%}.tbl table:has(thead){min-width:640px}.btns .btn{text-align:center}.hero-art{max-width:340px;margin:0 auto}}
@media(max-width:960px){.pgrid.g3{grid-template-columns:repeat(2,1fr)}.fgrid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.pgrid.g3,.pgrid.g2,.fgrid{grid-template-columns:1fr}.zlist{grid-template-columns:1fr}}