*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dt,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,picture,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:root{
  --ink-blue:#0A1A2F;
  --deep-blue:#10294A;
  --orbit:#1E4560;
  --paper:#F5F1E8;
  --ink:#0B0E13;
  --cyan:#35F2D6;
  --amber:#FF8A3D;
  --mist:#A9BDD6;
  --violet:#9B8CFF;
  --mute:#6E7C8C;
  --cyan-ink:#0E7C6B;
  --font-sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,monospace;
  --step-xs:12px;
  --step-sm:13px;
  --step-md:15px;
  --step-lg:18px;
  --step-xl:24px;
  --step-2xl:32px;
  --step-3xl:48px;
  --step-4xl:72px;
  --step-5xl:112px;
  --bar-h:56px;
  --rail:0px;
  --maxw:1340px;
  --gut:clamp(20px,6vw,96px);
  --edge:1px solid var(--orbit);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:26px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:420ms;
}
body{
  min-height:100vh;
  background:var(--ink-blue);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:clamp(16px,0.28vw + 15px,18px);
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  padding-top:var(--bar-h);
  padding-left:var(--rail);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
::selection{background:var(--cyan);color:var(--ink)}
.display{font-size:clamp(48px,7.5vw,112px);font-weight:900;line-height:.98;letter-spacing:-.02em}
.display--xl{font-size:clamp(56px,9vw,148px)}
.display--sm{font-size:clamp(32px,4.4vw,64px)}
.eyebrow{display:block;font-size:var(--step-xs);font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.lede{font-size:clamp(17px,1vw + 14px,20px);line-height:1.7;color:var(--mist);max-width:36em}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.muted{color:var(--mist)}
.faint{color:var(--mute)}
.shell{width:100%;max-width:calc(var(--maxw) + 2 * var(--gut));margin-inline:auto;padding-inline:var(--gut)}
.stage{padding-block:clamp(64px,9vw,150px)}
.stage--tight{padding-block:clamp(36px,5vw,74px)}
.stage--paper{background:var(--paper);color:var(--ink)}
.stage--paper .lede{color:#39414d}
.stage--paper .eyebrow{color:var(--cyan-ink)}
.stage--paper .muted{color:#4b545f}
.stage--paper .faint{color:#6b7480}
.stage--paper :focus-visible,.panel--paper :focus-visible{outline-color:var(--cyan-ink)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1px solid var(--orbit);
  font-size:var(--step-md);font-weight:600;letter-spacing:.06em;color:var(--paper);
  background:transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease)
}
.btn:hover{border-color:var(--cyan);color:var(--cyan)}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.btn--primary:hover{background:#68f9e2;border-color:#68f9e2;color:var(--ink)}
.btn--ghost{border-color:rgba(169,189,214,.4);color:var(--mist)}
.btn--ghost:hover{border-color:var(--mist);color:var(--paper)}
.btn--sm{padding:9px 18px;font-size:var(--step-xs);letter-spacing:.12em}
.stage--paper .btn{border-color:rgba(30,69,96,.45);color:var(--ink)}
.stage--paper .btn:hover{border-color:var(--cyan-ink);color:var(--cyan-ink)}
.stage--paper .btn--primary{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.stage--paper .btn--primary:hover{background:#1c2430;border-color:#1c2430;color:var(--paper)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;border:var(--edge);
  font-size:var(--step-xs);letter-spacing:.14em;color:var(--mist);white-space:nowrap
}
.tag--cyan{color:var(--cyan);border-color:rgba(53,242,214,.45)}
.tag--amber{color:var(--amber);border-color:rgba(255,138,61,.45)}
.tag--violet{color:var(--violet);border-color:rgba(155,140,255,.45)}
.panel{
  position:relative;
  background:linear-gradient(180deg,var(--deep-blue) 0%,#0c2138 100%);
  border:var(--edge);border-radius:var(--r-lg);
  padding:clamp(22px,3vw,36px)
}
.panel--paper{background:var(--paper);color:var(--ink);border-color:rgba(30,69,96,.35)}
.panel__head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 18px;margin-bottom:clamp(16px,2vw,26px)}
.panel__title{font-size:var(--step-xl);font-weight:800;letter-spacing:-.01em}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px}
.filter-chip{
  padding:9px 17px;border-radius:999px;border:1px solid var(--orbit);
  font-size:var(--step-xs);letter-spacing:.12em;color:var(--mist);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease)
}
.filter-chip:hover{border-color:var(--cyan);color:var(--paper)}
.filter-chip[aria-pressed="true"],.filter-chip.is-active{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}
.stage--paper .filter-chip{border-color:rgba(30,69,96,.4);color:#4b545f}
.stage--paper .filter-chip[aria-pressed="true"],.stage--paper .filter-chip.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;font-size:var(--step-xs);letter-spacing:.14em;color:var(--mist)}
.crumb__item{display:inline-flex;align-items:center}
.crumb__item + .crumb__item::before{content:"/";margin:0 10px;color:var(--orbit)}
.crumb__link{transition:color var(--dur) var(--ease)}
.crumb__link:hover{color:var(--cyan)}
.media-frame{
  position:relative;width:100%;overflow:hidden;
  border:var(--edge);border-radius:var(--r-lg);
  background:radial-gradient(120% 90% at 50% 0%,rgba(53,242,214,.14),transparent 62%),linear-gradient(180deg,#10294A,#0A1A2F);
  aspect-ratio:16/9
}
.media-frame img,.media-frame picture,.media-frame svg{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}
.media-frame--plot::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--orbit) 1px,transparent 1px),linear-gradient(90deg,var(--orbit) 1px,transparent 1px);
  background-size:44px 44px;opacity:.3
}
.media-frame__note{
  position:absolute;left:16px;bottom:14px;z-index:2;
  padding:6px 13px;border-radius:999px;
  background:rgba(10,26,47,.82);border:var(--edge);
  font-size:var(--step-xs);letter-spacing:.12em;color:var(--mist)
}
.compare-grid{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr))}
[data-compare][data-cols="3"] .compare-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
html:not(.js-on) .reveal{opacity:1;transform:none}
.is-filtered-out{display:none !important}
.site-head{position:relative;z-index:120}
.skip-link{
  position:fixed;left:16px;top:-72px;z-index:200;
  padding:10px 20px;border-radius:999px;
  background:var(--cyan);color:var(--ink);
  font-size:var(--step-sm);font-weight:700;letter-spacing:.1em;
  transition:top var(--dur) var(--ease)
}
.skip-link:focus{top:10px}
.sky-bar{
  position:fixed;top:0;left:0;right:0;z-index:110;height:var(--bar-h);
  background:rgba(10,26,47,.94);
  border-bottom:var(--edge);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px)
}
.sky-bar__inner{height:100%;display:flex;align-items:center;gap:clamp(14px,2.4vw,34px);padding-inline:clamp(16px,3vw,34px)}
.sky-bar__brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-size:var(--step-md);font-weight:800;letter-spacing:.06em;color:var(--paper)}
.sky-bar__mark{width:13px;height:13px;border-radius:50%;border:2px solid var(--cyan);box-shadow:0 0 0 4px rgba(53,242,214,.14)}
.sky-bar__tag{
  font-size:var(--step-xs);letter-spacing:.14em;color:var(--mist);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0
}
.sky-bar__side{margin-left:auto;display:flex;align-items:center;gap:12px}
.sky-bar__feedback{
  padding:8px 16px;border-radius:999px;border:var(--edge);
  font-size:var(--step-xs);letter-spacing:.14em;color:var(--mist);white-space:nowrap;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease)
}
.sky-bar__feedback:hover{color:var(--cyan);border-color:var(--cyan)}
.read-rail{position:fixed;left:0;right:0;top:var(--bar-h);height:2px;z-index:115;pointer-events:none}
.read-rail__fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--amber));transition:width 140ms linear}
.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 16px;border-radius:999px;border:1px solid var(--orbit);
  font-size:var(--step-xs);letter-spacing:.14em;color:var(--paper);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease)
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:2px;background:currentColor;transition:background var(--dur) var(--ease)}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
  transition:transform var(--dur) var(--ease)
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}
.orbit-nav{
  position:fixed;left:0;right:0;top:var(--bar-h);bottom:0;z-index:100;
  display:flex;flex-direction:column;justify-content:space-between;gap:32px;
  padding:28px var(--gut) 26px;
  background:linear-gradient(180deg,#0b1c31 0%,#0A1A2F 100%);
  border-top:var(--edge);
  overflow-y:auto;
  opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-12px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) linear
}
.orbit-nav[data-open]{opacity:1;visibility:visible;pointer-events:auto;transform:none}
body[data-nav-open]{overflow:hidden}
.track-list{display:flex;flex-direction:column;gap:2px}
.track-node{position:relative}
.track-link{
  position:relative;display:flex;align-items:baseline;gap:12px;
  padding:14px 12px;border-radius:var(--r-sm);border:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease)
}
.track-link::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;border-radius:2px;
  background:var(--cyan);opacity:0;transform:scaleY(.4);transform-origin:top;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease)
}
.track-link__no{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:var(--step-xs);letter-spacing:.12em;color:var(--mute)}
.track-link__label{font-size:var(--step-lg);font-weight:600;color:var(--mist);transition:color var(--dur) var(--ease)}
.track-link:hover{background:rgba(30,69,96,.42)}
.track-link:hover .track-link__label{color:var(--paper)}
.track-link[aria-current="page"]{background:linear-gradient(90deg,rgba(53,242,214,.16),rgba(53,242,214,0));border-color:rgba(53,242,214,.35)}
.track-link[aria-current="page"]::before{opacity:1;transform:scaleY(1)}
.track-link[aria-current="page"] .track-link__label{color:var(--paper)}
.track-link[aria-current="page"] .track-link__no{color:var(--cyan)}
.orbit-nav__foot{display:flex;flex-direction:column;gap:20px}
.track-cta{
  display:flex;align-items:center;justify-content:center;text-align:center;
  width:100%;padding:14px 12px;border-radius:999px;
  background:var(--cyan);color:var(--ink);
  font-size:var(--step-md);font-weight:700;letter-spacing:.08em;line-height:1.4;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease)
}
.track-cta:hover{background:#68f9e2}
.track-cta:active{transform:translateY(1px)}
.path-strip{display:grid;gap:10px}
.path-strip__label{font-size:var(--step-xs);letter-spacing:.16em;color:var(--mute);text-transform:uppercase}
.path-chip{
  display:flex;align-items:center;gap:12px;
  padding:13px 16px;border:var(--edge);border-radius:var(--r-md);
  font-size:var(--step-md);color:var(--mist);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease)
}
.path-chip::before{content:attr(data-step);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:var(--step-xs);letter-spacing:.1em;color:var(--cyan)}
.path-chip:hover{border-color:var(--cyan);color:var(--paper)}
.path-chip[aria-current="page"]{border-color:rgba(53,242,214,.5);background:rgba(53,242,214,.08);color:var(--paper)}
.site-foot{
  background:linear-gradient(180deg,#08182a 0%,#0A1A2F 72%);
  border-top:var(--edge);
  padding:clamp(52px,7vw,104px) 0 30px
}
.foot-inner{width:100%;max-width:calc(var(--maxw) + 2 * var(--gut));margin-inline:auto;padding-inline:var(--gut)}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(2,minmax(0,1fr)) minmax(0,1.2fr);gap:clamp(26px,3.4vw,56px)}
.foot-col{display:flex;flex-direction:column;gap:16px;min-width:0}
.foot-brand{display:inline-flex;align-items:center;gap:11px;font-size:var(--step-lg);font-weight:800;letter-spacing:.06em;color:var(--paper)}
.foot-brand__mark{width:11px;height:11px;border-radius:2px;background:var(--cyan);box-shadow:0 0 0 4px rgba(53,242,214,.14);transform:rotate(45deg)}
.foot-tag{font-size:var(--step-md);line-height:1.8;color:var(--mist);max-width:22em}
.foot-title{font-size:var(--step-xs);font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--mist)}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{
  display:inline-block;font-size:var(--step-md);color:var(--paper);opacity:.82;
  transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease),padding-left var(--dur) var(--ease)
}
.foot-links a:hover{color:var(--cyan);opacity:1;padding-left:6px}
.foot-links a[aria-current="page"]{color:var(--cyan);opacity:1}
.foot-contact{display:flex;flex-direction:column;gap:14px}
.foot-row{display:flex;flex-direction:column;gap:3px}
.foot-k{font-size:var(--step-xs);letter-spacing:.14em;color:var(--mute)}
.foot-v{font-family:var(--font-mono);font-size:var(--step-sm);line-height:1.7;color:var(--paper);word-break:break-word}
.foot-note{font-size:var(--step-sm);line-height:1.8;color:var(--mist);max-width:30em}
.foot-base{
  margin-top:clamp(36px,5vw,64px);padding-top:22px;
  border-top:1px solid rgba(30,69,96,.75);
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
  font-size:var(--step-xs);letter-spacing:.1em;color:var(--mute)
}
.foot-base__meta{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
@media (min-width:1080px){
  :root{--rail:118px}
  .nav-toggle{display:none}
  .orbit-nav{
    left:0;right:auto;width:var(--rail);border-top:0;border-right:var(--edge);
    padding:26px 12px 22px;overflow:visible;
    opacity:1;visibility:visible;pointer-events:auto;transform:none
  }
  .track-link{flex-direction:column;align-items:flex-start;gap:2px;padding:11px 10px}
  .track-link__label{font-size:var(--step-sm);letter-spacing:.04em}
  .track-link__no{font-size:11px}
  .track-cta{font-size:11px;padding:12px 8px;letter-spacing:.06em}
  .path-strip{display:none}
}
@media (max-width:1079px){
  .nav-toggle{display:inline-flex}
  .sky-bar__tag{display:none}
}
@media (max-width:1024px){
  .grid-12{grid-template-columns:repeat(8,minmax(0,1fr))}
  .span-5,.span-6,.span-7,.span-8,.span-12{grid-column:1 / -1}
  .span-4{grid-column:span 4}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare-grid{grid-template-columns:1fr}
  [data-compare][data-cols="3"] .compare-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .grid-12{grid-template-columns:repeat(4,minmax(0,1fr))}
  .grid-12 > *{grid-column:1 / -1}
  .foot-grid{grid-template-columns:1fr}
  .sky-bar__feedback{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .read-rail__fill{transition:none}
}