:root{
  --bg:#050c18;--bg2:#0d2038;--panel:rgba(120,150,195,.10);--panel-2:rgba(120,150,195,.18);
  --line:rgba(150,175,215,.34);--line-hot:#cfe0ff;--text:#f2f5fa;--muted:#a6b3c7;--dot:#a9c4f5;
  --red:#d8344c;--gap:clamp(14px,1.8vh,22px);--radius:18px;
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{height:100%}
body{margin:0;min-height:100%;display:flex;flex-direction:column;color:var(--text);font-family:var(--font);
  background:
    radial-gradient(900px 520px at 50% 46%,rgba(62,104,178,.30),transparent 70%),
    radial-gradient(1200px 600px at 50% 112%,rgba(40,70,125,.34),transparent 70%),
    linear-gradient(180deg,var(--bg2),var(--bg) 62%);
  background-color:var(--bg);-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:2px solid var(--line-hot);outline-offset:3px;border-radius:6px}

.top{display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:min(1480px,100%);margin:0 auto;padding:22px clamp(16px,3vw,40px) 0}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{height:26px;width:auto;display:block}
.brand span{font-size:12px;font-weight:600;letter-spacing:.34em;color:var(--dot);padding-left:12px;border-left:1px solid var(--line)}
.call{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:14px;color:var(--muted);white-space:nowrap}
.call b{color:var(--text);font-weight:600}
.call svg{width:16px;height:16px;stroke:var(--dot)}

.intro{text-align:center;padding:clamp(18px,3.2vh,36px) 16px clamp(10px,2vh,22px)}
.intro h1{margin:0;font-weight:600;font-size:clamp(28px,3.5vw,46px);letter-spacing:-.02em;line-height:1.12}
.intro p{margin:10px auto 0;max-width:56ch;color:var(--muted);font-size:clamp(15px,1.2vw,17px);line-height:1.5}

.stage{position:relative;flex:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.82fr) minmax(0,1fr);
  align-items:center;gap:clamp(30px,5vw,92px);width:min(1480px,100%);margin:0 auto;padding:8px clamp(16px,3vw,40px) 26px}
.col{display:flex;flex-direction:column;gap:var(--gap);position:relative;z-index:2}
.links{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1;overflow:visible}
.links path{fill:none;stroke:var(--line);stroke-width:1.2;stroke-dasharray:3 5;transition:stroke .25s}
.links circle{fill:var(--dot);transition:fill .25s,r .25s}
.links circle.halo{fill:rgba(169,196,245,.22)}
.links g.on path{stroke:var(--line-hot)}
.links g.on circle{fill:#fff}

.card{min-height:94px;display:grid;grid-template-columns:124px minmax(0,1fr) 18px;align-items:center;gap:16px;text-decoration:none;
  padding:14px 18px 14px 14px;border-radius:var(--radius);border:1px solid rgba(150,175,215,.26);
  background:linear-gradient(135deg,var(--panel-2),var(--panel));
  transition:transform .22s ease,border-color .22s ease,background .22s ease}
.card:hover,.card:focus-visible{border-color:var(--line-hot);transform:translateY(-2px);
  background:linear-gradient(135deg,rgba(135,170,230,.30),rgba(120,150,195,.14))}
.icon{width:124px;height:66px;padding:0 12px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(155deg,#0d2038,#050c18);border:1px solid rgba(150,175,215,.24)}
.icon img{display:block;max-width:100%;max-height:40px;width:auto;height:auto}
.icon b{font-size:17px;font-weight:700;letter-spacing:-.02em;color:#fff;white-space:nowrap}
.card h2{margin:0;font-size:18px;font-weight:600;letter-spacing:-.005em}
.card p{margin:3px 0 0;color:var(--muted);font-size:14px;line-height:1.35}
.card .url{display:block;margin-top:4px;font-size:12.5px;color:var(--dot)}
.go{width:18px;height:18px;stroke:var(--muted);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s,stroke .22s}
.card:hover .go,.card:focus-visible .go{stroke:#fff;transform:translate(2px,-2px)}

.hub{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;text-align:center}
.orb{position:relative;width:min(100%,clamp(220px,25vw,340px));aspect-ratio:1;display:grid;place-items:center}
.orb::before{content:"";position:absolute;inset:12%;border-radius:50%;
  background:radial-gradient(circle,rgba(112,156,235,.40),rgba(40,70,125,.10) 62%,transparent 72%);filter:blur(4px)}
.ring{position:absolute;inset:0;width:100%;height:100%;fill:none}
.ring.a{animation:spin 70s linear infinite}
.ring.b{animation:spin 110s linear infinite reverse}
.core{position:relative;width:42%;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 32% 26%,#2a4771,#0e1b30 68%);border:1px solid rgba(190,212,250,.42);
  box-shadow:0 18px 50px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.14)}
.core svg{width:56%;height:56%}
.hubtext{min-height:66px;margin-top:6px}
.hubtext strong{display:block;font-size:clamp(19px,1.7vw,24px);font-weight:600;letter-spacing:-.01em}
.hubtext span{display:block;margin-top:4px;color:var(--muted);font-size:14.5px;line-height:1.4}

.foot{border-top:1px solid rgba(150,175,215,.16);margin-top:auto}
.foot div{display:flex;flex-wrap:wrap;gap:8px 26px;align-items:center;justify-content:space-between;
  width:min(1480px,100%);margin:0 auto;padding:16px clamp(16px,3vw,40px);color:var(--muted);font-size:13.5px}
.foot nav{display:flex;gap:22px}
.foot a{text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline}

@keyframes spin{to{transform:rotate(360deg)}}
@keyframes rise{from{transform:translateY(8px)}to{transform:none}}
.card{animation:rise .6s ease both}
.col .card:nth-child(2){animation-delay:.07s}.col .card:nth-child(3){animation-delay:.14s}.col .card:nth-child(4){animation-delay:.21s}

@media (max-width:1120px){
  .stage{grid-template-columns:1fr 1fr;gap:var(--gap);padding-top:0}
  .hub{grid-column:1/-1;grid-row:1}
  .orb{width:190px}
  .links{display:none}
  .hubtext{min-height:0;margin-bottom:10px}
}
@media (max-width:680px){
  .stage{grid-template-columns:minmax(0,1fr)}
  .call span,.call b{display:none}
  .call{width:42px;height:42px;justify-content:center;border:1px solid var(--line);border-radius:50%}
  .brand{min-width:0;gap:9px}
  .brand img{height:auto;width:min(46vw,190px)}
  .brand span{font-size:11px;letter-spacing:.2em;padding-left:9px}
  .orb{width:128px}
  .hubtext{margin-top:0}
  .hubtext strong{font-size:18px}
  .card{grid-template-columns:104px minmax(0,1fr) 18px;gap:12px;padding:10px 12px 10px 10px}
  .icon{width:104px;height:58px;padding:0 9px}
  .icon b{font-size:15px}
  .foot div{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before{animation:none!important;transition:none!important}
}
main{display:contents}
.txt{min-width:0}