:root{
  --ink-900:#06111F;
  --ink-800:#0B1B2F;
  --line:#17324D;
  --cyan:#35E6FF;
  --violet:#8A5CFF;
  --gold:#FFB547;
  --text:#EAF6FF;
  --muted:#91A9C6;
  --mint:#3DFFB0;
  --coral:#FF6B6B;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",ui-sans-serif,system-ui,sans-serif;
  --font-display:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",ui-sans-serif,system-ui,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono","JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
  --gutter:clamp(16px,4vw,40px);
  --radius:10px;
  --shadow-1:0 1px 0 rgba(255,255,255,.04),0 14px 34px rgba(2,8,16,.55);
  --rail-h:28px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg{display:block;max-width:100%}
:where(a,button,summary,input,textarea,select):focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:3px}
body{
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1100px 520px at 88% -12%,rgba(138,92,255,.16),transparent 66%),
    radial-gradient(920px 460px at 4% 2%,rgba(53,230,255,.10),transparent 62%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-sans);
  font-size:clamp(15.5px,1.05vw,17px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
#main-content{display:block;scroll-margin-top:112px}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.24;letter-spacing:.05em;color:var(--text)}
p{color:var(--muted)}
strong{color:var(--text)}
.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:var(--gutter)}
.container--narrow{max-width:840px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan)}
.section-title{font-size:clamp(22px,3.2vw,34px);letter-spacing:.07em}
.lede{max-width:62ch;font-size:clamp(16px,1.5vw,19px);line-height:1.82;color:var(--muted)}
.annotation{font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.annotation--vertical{writing-mode:vertical-rl;text-orientation:mixed;font-family:var(--font-mono);font-size:11px;letter-spacing:.32em;color:rgba(145,169,198,.72)}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--split{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--sidebar{grid-template-columns:minmax(0,1fr) minmax(250px,320px);align-items:start}
.stack{display:flex;flex-direction:column;gap:clamp(12px,1.6vw,20px)}
.cluster{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.skip-link{position:absolute;left:16px;top:-140px;z-index:300;padding:12px 18px;border-radius:8px;background:var(--cyan);color:#04121e;font-weight:700;letter-spacing:.08em;box-shadow:0 10px 26px rgba(53,230,255,.35);transition:top .22s ease}
.skip-link:focus{top:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:10px 16px;border:1px solid var(--line);border-radius:8px;background:rgba(11,27,47,.72);color:var(--text);font-size:13.5px;font-weight:600;letter-spacing:.08em;line-height:1;transition:color .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.btn:hover{border-color:rgba(53,230,255,.5);color:var(--cyan)}
.btn:active{transform:translateY(1px)}
.btn--primary{border-color:transparent;background:linear-gradient(135deg,var(--cyan),#1fb6da);color:#04121e;font-weight:700;box-shadow:0 10px 24px rgba(53,230,255,.22)}
.btn--primary:hover{color:#04121e;box-shadow:0 14px 30px rgba(53,230,255,.34);border-color:transparent}
.btn--gold{border-color:rgba(255,181,71,.5);background:rgba(255,181,71,.11);color:var(--gold)}
.btn--gold:hover{border-color:rgba(255,181,71,.8);background:rgba(255,181,71,.18);color:var(--gold)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--muted)}
.btn--ghost:hover{color:var(--cyan);border-color:rgba(53,230,255,.45);background:rgba(53,230,255,.07)}
.btn--sm{min-height:34px;padding:7px 12px;font-size:12.5px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border:1px solid var(--line);border-radius:999px;background:rgba(23,50,77,.5);font-size:12px;letter-spacing:.08em;color:var(--muted)}
.chip--gold{border-color:rgba(255,181,71,.42);background:rgba(255,181,71,.1);color:var(--gold)}
.chip--mint{border-color:rgba(61,255,176,.38);background:rgba(61,255,176,.08);color:var(--mint)}
.chip--coral{border-color:rgba(255,107,107,.42);background:rgba(255,107,107,.1);color:var(--coral)}
.tag{display:inline-flex;align-items:center;padding:3px 8px;border:1px solid rgba(138,92,255,.45);border-radius:4px;background:rgba(138,92,255,.12);font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:#c9b8ff;text-transform:uppercase}
.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(61,255,176,.16);animation:statusPulse 2.8s ease-in-out infinite}
@keyframes statusPulse{0%,100%{box-shadow:0 0 0 0 rgba(61,255,176,.34)}50%{box-shadow:0 0 0 5px rgba(61,255,176,0)}}
.site-header{position:sticky;top:0;z-index:80;border-bottom:1px solid transparent;background:linear-gradient(180deg,rgba(6,17,31,.94) 0%,rgba(6,17,31,.66) 64%,rgba(6,17,31,0) 100%);transition:background .3s ease,border-color .3s ease,box-shadow .3s ease}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(8,20,35,.975);box-shadow:0 12px 34px rgba(0,0,0,.5);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.header-rail{border-bottom:1px solid rgba(23,50,77,.55)}
.header-rail__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:6px;font-size:11.5px;letter-spacing:.14em;color:var(--muted)}
.rail-note{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:.14em;color:var(--muted)}
.rail-meta{font-size:10.5px;letter-spacing:.2em;color:rgba(145,169,198,.75);text-transform:uppercase;white-space:nowrap}
.header-bar__inner{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:clamp(14px,2vw,30px);padding-block:12px 14px}
.brand-lockup{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;flex:none;border:1px solid rgba(53,230,255,.35);border-radius:10px;background:linear-gradient(150deg,rgba(53,230,255,.22),rgba(138,92,255,.34));box-shadow:inset 0 0 0 1px rgba(234,246,255,.08);font-size:18px;font-weight:700;color:var(--text);letter-spacing:0}
.brand-text{display:flex;flex-direction:column;gap:2px;min-width:0;line-height:1.22}
.brand-name{font-family:var(--font-display);font-size:clamp(15px,1.5vw,17px);font-weight:800;letter-spacing:.1em;color:var(--text);white-space:nowrap}
.brand-sub{font-size:11px;letter-spacing:.12em;color:var(--muted);white-space:nowrap}
.header-nav{justify-self:center;min-width:0}
.nav-list{display:flex;align-items:stretch;gap:clamp(2px,.9vw,10px)}
.nav-item{display:flex}
.nav-link{position:relative;display:flex;flex-direction:column;gap:1px;padding:8px 10px 11px;border-radius:6px;color:var(--muted);transition:color .2s ease,background .2s ease}
.nav-index{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.2em;color:rgba(145,169,198,.55);transition:color .2s ease}
.nav-label{font-size:14px;font-weight:600;letter-spacing:.07em;white-space:nowrap}
.nav-link:hover{color:var(--text);background:rgba(53,230,255,.07)}
.nav-link:hover .nav-index{color:var(--cyan)}
.nav-link::after{content:"";position:absolute;left:10px;right:10px;bottom:3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--violet));transform:scaleX(0);transform-origin:left;transition:transform .26s ease}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan);background:rgba(53,230,255,.1)}
.nav-link[aria-current="page"] .nav-index{color:var(--cyan)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;justify-self:end}
.nav-toggle{display:none;align-items:center;gap:9px;padding:9px 12px;border:1px solid var(--line);border-radius:8px;background:rgba(11,27,47,.8);color:var(--text);font-size:12.5px;letter-spacing:.12em;font-weight:600}
.nav-toggle__bars{display:grid;gap:4px;place-items:center;width:16px}
.nav-toggle__bar{display:block;width:16px;height:2px;border-radius:2px;background:var(--cyan);transition:transform .22s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child{transform:translateY(-3px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}
.header-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.header-progress__bar{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--cyan),var(--violet) 62%,var(--gold));box-shadow:0 0 12px rgba(53,230,255,.5);transition:width .12s linear}
.site-footer{position:relative;margin-top:clamp(56px,8vw,110px);border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(11,27,47,.6) 0%,rgba(6,17,31,.96) 46%,var(--ink-900) 100%)}
.footer-top{padding-block:clamp(36px,5.5vw,68px) clamp(24px,3vw,36px)}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.55fr) repeat(3,minmax(0,.85fr));gap:clamp(22px,3vw,46px)}
.footer-brand{display:flex;flex-direction:column;gap:12px;min-width:0}
.footer-eyebrow{font-size:11px;letter-spacing:.2em;color:var(--cyan);text-transform:uppercase}
.footer-brand__name{font-family:var(--font-display);font-size:clamp(19px,2.2vw,26px);font-weight:800;line-height:1.3;letter-spacing:.07em;color:var(--text)}
.footer-note{max-width:46ch;font-size:13px;line-height:1.8;color:var(--muted)}
.footer-brand__actions{display:flex;flex-wrap:wrap;gap:10px;margin-block:4px}
.footer-col{display:flex;flex-direction:column;gap:12px;min-width:0}
.footer-col__title{font-family:var(--font-display);font-size:13px;font-weight:700;letter-spacing:.18em;color:var(--text);padding-bottom:10px;border-bottom:1px solid rgba(23,50,77,.9)}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-link{display:inline-block;padding:6px 0;font-size:14px;letter-spacing:.06em;color:var(--muted);transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--cyan);transform:translateX(3px)}
.footer-info{border-top:1px solid rgba(23,50,77,.7);padding-block:clamp(24px,3.4vw,40px)}
.footer-info__inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(22px,3.4vw,52px)}
.footer-contact,.footer-steps{display:flex;flex-direction:column;gap:12px;min-width:0}
.contact-list{display:flex;flex-direction:column}
.contact-item{display:grid;grid-template-columns:88px minmax(0,1fr);gap:10px;padding:9px 0;border-bottom:1px dashed rgba(23,50,77,.85);font-size:13.5px;align-items:baseline}
.contact-item:last-child{border-bottom:0}
.contact-item__key{font-size:11px;letter-spacing:.12em;color:rgba(145,169,198,.85)}
.contact-item__val{color:var(--text);word-break:break-word}
.step-list{display:flex;flex-direction:column}
.step-item{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(23,50,77,.85)}
.step-item:last-child{border-bottom:0}
.step-index{flex:none;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--gold)}
.step-text{font-size:13.5px;line-height:1.7;color:var(--muted)}
.footer-bottom{border-top:1px solid rgba(23,50,77,.7);background:rgba(6,17,31,.85)}
.footer-bottom__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;padding-block:16px 20px}
.footer-legal{display:flex;flex-wrap:wrap;gap:16px}
.legal-link{font-size:12.5px;letter-spacing:.1em;color:var(--muted);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.legal-link:hover{color:var(--cyan);border-bottom-color:rgba(53,230,255,.45)}
.footer-meta{font-size:12px;letter-spacing:.08em;color:rgba(145,169,198,.9)}
.footer-icp{font-size:11.5px;letter-spacing:.12em;color:rgba(145,169,198,.7)}
.crumbs{margin-bottom:clamp(18px,3vw,28px)}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--muted)}
.crumbs__item{display:inline-flex;align-items:center;gap:8px}
.crumbs__link{color:var(--muted);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.crumbs__link:hover{color:var(--cyan);border-bottom-color:rgba(53,230,255,.45)}
.crumbs__sep{color:rgba(23,50,77,1)}
.crumbs__current{color:var(--text)}
.panel{position:relative;padding:clamp(16px,2.2vw,26px);border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(168deg,rgba(11,27,47,.92),rgba(6,17,31,.95));box-shadow:var(--shadow-1)}
.panel--deck{border-color:rgba(53,230,255,.24);background:linear-gradient(160deg,rgba(23,50,77,.85),rgba(11,27,47,.94))}
.panel__head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid rgba(23,50,77,.9)}
.panel__title{font-size:clamp(16px,1.7vw,19px);letter-spacing:.09em}
.panel__meta{margin-left:auto;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
.panel__body{font-size:15px;line-height:1.8;color:var(--muted)}
.panel__body p+p{margin-top:12px}
.spec-panel{position:sticky;top:104px;padding:18px;border:1px solid rgba(53,230,255,.22);border-radius:var(--radius);background:linear-gradient(165deg,rgba(23,50,77,.6),rgba(6,17,31,.94));box-shadow:var(--shadow-1)}
.spec-list{display:grid}
.spec-item{display:grid;grid-template-columns:minmax(0,auto) minmax(0,1fr);gap:12px;padding:10px 0;border-bottom:1px dashed rgba(23,50,77,.9);font-size:13.5px;align-items:baseline}
.spec-item:last-child{border-bottom:0}
.spec-key{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted)}
.spec-val{color:var(--text);text-align:right;font-family:var(--font-mono);font-size:13px;letter-spacing:.04em}
.media-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.media-frame{position:relative;overflow:hidden;aspect-ratio:16/9;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(150deg,rgba(23,50,77,.7),rgba(11,27,47,.95))}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame>img{width:100%;height:100%;object-fit:cover}
.media-frame::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.34;background-image:linear-gradient(rgba(53,230,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(53,230,255,.14) 1px,transparent 1px);background-size:44px 44px}
.media-frame__tag{position:absolute;top:10px;left:10px;z-index:2}
.media-frame__caption{margin-top:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted)}
.accordion{display:grid;gap:10px}
.accordion__item{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,rgba(11,27,47,.9),rgba(6,17,31,.92));transition:border-color .22s ease,box-shadow .22s ease}
.accordion__item.is-open{border-color:rgba(53,230,255,.45);box-shadow:0 0 0 1px rgba(53,230,255,.14),var(--shadow-1)}
.accordion__trigger{display:flex;align-items:center;gap:14px;width:100%;padding:15px 18px;text-align:left;font-size:15px;font-weight:600;letter-spacing:.05em;color:var(--text);transition:background .2s ease}
.accordion__trigger:hover{background:rgba(53,230,255,.06)}
.accordion__item.is-open .accordion__trigger{color:var(--cyan)}
.accordion__icon{position:relative;flex:none;width:16px;height:16px;margin-left:auto}
.accordion__icon::before,.accordion__icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--cyan);transition:transform .26s ease,opacity .26s ease}
.accordion__icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.accordion__icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.accordion__item.is-open .accordion__icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.accordion__panel{display:grid;grid-template-rows:0fr;visibility:hidden;transition:grid-template-rows .36s cubic-bezier(.22,.61,.36,1),visibility .36s ease}
.accordion__item.is-open .accordion__panel{grid-template-rows:1fr;visibility:visible}
.accordion__inner{overflow:hidden;min-height:0;padding:0 18px;font-size:14.5px;line-height:1.85;color:var(--muted)}
.accordion__item.is-open .accordion__inner{padding-bottom:18px}
html[data-reveal="on"] [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s cubic-bezier(.22,.61,.36,1)}
html[data-reveal="on"] [data-reveal].is-visible{opacity:1;transform:none}
@media (max-width:1180px){
  .header-actions .btn--ghost{display:none}
}
@media (max-width:980px){
  .header-rail{display:none}
  .header-bar__inner{grid-template-columns:minmax(0,1fr) auto;gap:12px;padding-block:10px 12px}
  .header-nav{position:absolute;left:0;right:0;top:100%;display:none;z-index:90;max-height:calc(100vh - 88px);overflow-y:auto;padding:10px var(--gutter) 18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(7,18,32,.985);box-shadow:0 26px 46px rgba(0,0,0,.6)}
  .site-header[data-open="true"]{background:rgba(8,20,35,.98);border-bottom-color:var(--line)}
  .site-header[data-open="true"] .header-nav{display:block}
  .nav-list{flex-direction:column;gap:0}
  .nav-link{flex-direction:row;align-items:baseline;gap:12px;padding:13px 8px;border-radius:0;border-bottom:1px solid rgba(23,50,77,.75)}
  .nav-link::after{left:8px;right:8px;bottom:6px}
  .nav-index{font-size:10.5px}
  .nav-label{font-size:15px}
  .nav-toggle{display:inline-flex}
  .grid--sidebar{grid-template-columns:minmax(0,1fr)}
  .spec-panel{position:static;top:auto}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-info__inner{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:760px){
  .grid--split{grid-template-columns:minmax(0,1fr)}
  .brand-sub{display:none}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom__inner{flex-direction:column;align-items:flex-start;gap:10px}
  .contact-item{grid-template-columns:76px minmax(0,1fr)}
  .footer-brand__actions{width:100%}
}
@media (max-width:460px){
  .header-actions .btn--primary{padding-inline:12px;font-size:12.5px}
  .nav-toggle__label{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  html[data-reveal="on"] [data-reveal]{opacity:1;transform:none}
}