:root{
  --ink:#0B1B2B;
  --hull:#12293D;
  --steel:#26445F;
  --amber:#F5A524;
  --amber-soft:#FFC85C;
  --paper:#F2F4F6;
  --mist:#C3CDD6;
  --gray:#8A98A6;
  --ok:#35C08A;
  --warn:#F0655A;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --shell:1240px;
  --gutter:24px;
  --header-h:112px;
  --step:8px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
}
body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.78;
  font-weight:400;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
img,svg,video{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,dl,dd{margin:0}
h1,h2,h3,h4{
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.24;
  color:var(--paper);
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
strong,b{font-weight:800}
hr{border:0;border-top:1px solid var(--steel);margin:0}

:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{
  outline:2px solid var(--amber);
  outline-offset:3px;
  border-radius:2px;
}

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:400;
  padding:10px 16px;
  background:var(--amber);
  color:var(--ink);
  font-weight:800;
  font-size:15px;
  border-radius:2px;
  transform:translateY(-160%);
  transition:transform 160ms var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.shell{
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
}

.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.num{font-family:var(--mono);color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:120;
  background-color:transparent;
  background-image:linear-gradient(180deg,rgba(11,27,43,.92) 0%,rgba(11,27,43,.55) 55%,rgba(11,27,43,0) 100%);
  transition:background-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header[data-scrolled="true"]{
  background-image:none;
  background-color:var(--ink);
  box-shadow:0 1px 0 var(--steel),0 10px 28px rgba(0,0,0,.28);
}

.status-strip{
  height:36px;
  overflow:hidden;
  opacity:1;
  border-bottom:1px solid rgba(38,68,95,.7);
  transition:height 220ms var(--ease),opacity 160ms linear,border-color 220ms linear;
}
.site-header[data-scrolled="true"] .status-strip{
  height:0;
  opacity:0;
  border-bottom-color:transparent;
}
.status-strip__inner{
  display:flex;
  align-items:center;
  gap:12px;
  height:36px;
}
.status-strip__dot{
  flex:0 0 auto;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 3px rgba(245,165,36,.18);
}
.status-strip__text{
  flex:1 1 auto;
  min-width:0;
  font-size:13px;
  line-height:1.4;
  color:var(--mist);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.status-strip__hint{
  flex:0 0 auto;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--gray);
}

.masthead{border-bottom:1px solid transparent}
.site-header[data-scrolled="true"] .masthead{border-bottom-color:transparent}
.masthead__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand__glyph{
  position:relative;
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  border:1px solid var(--steel);
  background:rgba(18,41,61,.72);
  border-radius:2px;
  overflow:hidden;
}
.brand__glyph::before,
.brand__glyph::after{
  content:"";
  position:absolute;
  background:var(--amber);
}
.brand__glyph::before{width:1px;height:100%;left:50%;top:0;opacity:.35}
.brand__glyph::after{height:1px;width:100%;top:50%;left:0;opacity:.35}
.brand__glyph-in{
  width:12px;
  height:12px;
  background:var(--amber);
  transition:transform 160ms var(--ease);
}
.brand:hover .brand__glyph-in{transform:scale(1.22)}
.brand__text{display:flex;flex-direction:column;gap:1px}
.brand__name{
  font-size:19px;
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.2;
  color:var(--paper);
}
.brand__tag{
  font-size:11px;
  line-height:1.4;
  letter-spacing:.16em;
  color:var(--gray);
}

.site-nav{
  display:flex;
  align-items:center;
  gap:20px;
  margin-left:auto;
  flex:1 1 auto;
  justify-content:flex-end;
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.site-nav__list a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--mist);
  border-radius:2px;
  transition:color 160ms var(--ease),background-color 160ms var(--ease);
}
.site-nav__list a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:4px;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform 160ms var(--ease);
}
.site-nav__list a:hover{color:var(--paper);background:rgba(38,68,95,.42)}
.site-nav__list a:hover::after{transform:scaleX(1)}
.site-nav__list a[aria-current="page"]{color:var(--amber-soft)}
.site-nav__list a[aria-current="page"]::after{transform:scaleX(1);background:var(--amber)}

.site-nav__cta{flex:0 0 auto;margin-left:8px}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  margin-left:auto;
  padding:9px 12px;
  border:1px solid var(--steel);
  border-radius:2px;
  background:rgba(18,41,61,.7);
  color:var(--paper);
  font-size:14px;
  font-weight:500;
  transition:border-color 160ms var(--ease),background-color 160ms var(--ease);
}
.nav-toggle:hover{border-color:var(--amber);background:rgba(38,68,95,.7)}
.nav-toggle__bars{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:18px;
  height:14px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:var(--amber);
  transition:transform 160ms var(--ease),opacity 160ms linear;
}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

.header-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  overflow:hidden;
}
.header-progress__bar{
  display:block;
  height:100%;
  width:100%;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform 90ms linear;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  font-size:15px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:.01em;
  border-radius:2px;
  border:1px solid transparent;
  transition:background-color 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease),transform 160ms var(--ease);
}
.btn--amber{background:var(--amber);color:var(--ink);border-color:var(--amber)}
.btn--amber:hover{background:var(--amber-soft);border-color:var(--amber-soft)}
.btn--amber:active{transform:translateY(1px)}
.btn--ghost{background:rgba(18,41,61,.6);color:var(--paper);border-color:var(--steel)}
.btn--ghost:hover{border-color:var(--amber);color:var(--amber-soft)}
.btn--quiet{background:transparent;color:var(--mist);border-color:transparent;padding:10px 2px;font-weight:500}
.btn--quiet:hover{color:var(--amber-soft)}

/* ---------- typography helpers ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--gray);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--amber);
}
.lede{
  font-size:19px;
  line-height:1.72;
  color:var(--mist);
  font-weight:400;
  max-width:62ch;
}
.prose{max-width:68ch}
.prose--wide{max-width:82ch}
.prose p{margin-bottom:1.2em}
.prose p:last-child{margin-bottom:0}
.prose h2{margin:1.8em 0 .6em;font-size:26px}
.prose h3{margin:1.6em 0 .5em;font-size:21px}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.2em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.4em}
.prose a{color:var(--amber-soft);border-bottom:1px solid rgba(245,165,36,.5)}
.prose a:hover{color:var(--amber)}

/* ---------- section / grid ---------- */
.section{margin:96px 0}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:20px;
  border-bottom:1px solid var(--steel);
  margin-bottom:40px;
}
.section__title{font-size:32px}
.section__lead{max-width:52ch;color:var(--mist);font-size:16px}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
.stagger-1{margin-top:0}
.stagger-2{margin-top:24px}
.stagger-3{margin-top:48px}

.hero--overlay{
  margin-top:calc(var(--header-h) * -1);
  padding-top:calc(var(--header-h) + 48px);
}

/* ---------- panels ---------- */
.panel{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  background:var(--hull);
  border:1px solid var(--steel);
  border-radius:2px;
  transition:transform 160ms var(--ease),border-color 160ms var(--ease),background-color 160ms var(--ease);
}
a.panel:hover,
.panel--link:hover{
  transform:translateY(-2px);
  border-color:var(--amber);
}
.panel__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.panel__title{font-size:21px}
.panel__meta{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--gray);
}
.panel__body{color:var(--mist);font-size:16px}
.panel--glass{
  background:rgba(18,41,61,.62);
  border-color:rgba(38,68,95,.9);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.panel--flush{padding:0;gap:0}

/* ---------- tags & dots ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  line-height:1.6;
  border:1px solid var(--steel);
  border-radius:2px;
  color:var(--mist);
  background:rgba(38,68,95,.35);
}
.tag--amber{color:var(--ink);background:var(--amber-soft);border-color:var(--amber-soft);font-weight:700}
.tag--ok{color:var(--ok);border-color:rgba(53,192,138,.5);background:rgba(53,192,138,.1)}
.tag--warn{color:var(--warn);border-color:rgba(240,101,90,.5);background:rgba(240,101,90,.1)}
.tag--quiet{color:var(--gray);border-color:var(--steel);background:transparent}

.dot{
  display:inline-block;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--gray);
  flex:0 0 auto;
}
.dot--ok{background:var(--ok);box-shadow:0 0 0 3px rgba(53,192,138,.16)}
.dot--warn{background:var(--warn);box-shadow:0 0 0 3px rgba(240,101,90,.16)}
.dot--idle{background:var(--gray)}
.dot--amber{background:var(--amber);box-shadow:0 0 0 3px rgba(245,165,36,.16)}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:28px;
  padding-left:26px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;
  top:6px;
  bottom:6px;
  width:1px;
  background:var(--steel);
}
.timeline__item{position:relative;display:flex;flex-direction:column;gap:6px}
.timeline__node{
  position:absolute;
  left:-26px;
  top:8px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--ink);
  border:1px solid var(--steel);
}
.timeline__node--current{
  background:var(--amber);
  border-color:var(--amber);
  box-shadow:0 0 0 4px rgba(245,165,36,.16);
}
.timeline__body{color:var(--mist);font-size:16px}
.timeline__meta{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--gray);
}

/* ---------- media ---------- */
.media{
  position:relative;
  display:block;
  border:1px solid var(--steel);
  border-radius:2px;
  background:var(--hull);
  overflow:hidden;
}
.media__frame{
  position:relative;
  aspect-ratio:16/10;
  background-color:var(--hull);
  background-image:
    linear-gradient(to right,rgba(38,68,95,.55) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(38,68,95,.55) 1px,transparent 1px);
  background-size:32px 32px;
  background-position:center;
}
.media__img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media__caption{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 14px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--gray);
  border-top:1px solid var(--steel);
  background:var(--hull);
}
.media--wide .media__frame{aspect-ratio:21/9}
.media--tall .media__frame{aspect-ratio:4/5}
.media--square .media__frame{aspect-ratio:1/1}

/* ---------- breadcrumbs ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:18px 0;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}
.crumbs__item{display:inline-flex;align-items:center;gap:8px}
.crumbs__item + .crumbs__item::before{
  content:"/";
  color:var(--steel);
}
.crumbs a{color:var(--mist)}
.crumbs a:hover{color:var(--amber-soft)}
.crumbs__item[aria-current="page"]{color:var(--amber-soft)}

/* ---------- reveal ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity 400ms var(--ease),transform 400ms var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  background:var(--hull);
  border-top:1px solid var(--steel);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:96px;
  height:3px;
  background:var(--amber);
}
.site-footer__top{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:56px;
  padding:72px 0 48px;
}
.site-footer__identity{display:flex;flex-direction:column;gap:16px}
.site-footer__mark{
  font-size:clamp(30px,3.4vw,44px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.1;
  color:var(--paper);
}
.site-footer__summary{
  font-size:16px;
  line-height:1.72;
  color:var(--mist);
  max-width:34ch;
}
.site-footer__stamp{
  font-size:12px;
  letter-spacing:.1em;
  color:var(--gray);
}
.site-footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:32px;
}
.footer-col{display:flex;flex-direction:column;gap:14px}
.footer-col__title{
  font-size:12px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--gray);
  font-family:var(--mono);
}
.footer-col__list{display:flex;flex-direction:column;gap:10px}
.footer-col__list a{
  position:relative;
  display:inline-block;
  font-size:15px;
  color:var(--mist);
  padding-left:0;
  transition:color 160ms var(--ease),padding-left 160ms var(--ease);
}
.footer-col__list a::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:0;
  height:1px;
  background:var(--amber);
  transition:width 160ms var(--ease);
}
.footer-col__list a:hover{color:var(--amber-soft);padding-left:14px}
.footer-col__list a:hover::before{width:10px}

.site-footer__contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:20px 32px;
  padding:32px 0;
  border-top:1px solid var(--steel);
}
.contact-line{display:flex;flex-direction:column;gap:3px;min-width:0}
.contact-line__key{
  font-size:11px;
  letter-spacing:.16em;
  color:var(--gray);
}
.contact-line__val{
  font-size:15px;
  color:var(--paper);
  word-break:break-word;
}
.site-footer__note{
  grid-column:1/-1;
  font-size:13px;
  line-height:1.7;
  color:var(--gray);
  max-width:70ch;
}
.site-footer__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:24px 0 40px;
  border-top:1px solid var(--steel);
}
.site-footer__legal-line{
  font-size:13px;
  letter-spacing:.04em;
  color:var(--gray);
  line-height:1.6;
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  font-size:13px;
  font-family:var(--mono);
  letter-spacing:.08em;
  color:var(--mist);
  border:1px solid var(--steel);
  border-radius:2px;
  transition:color 160ms var(--ease),border-color 160ms var(--ease),background-color 160ms var(--ease);
}
.to-top::before{content:"↑";color:var(--amber)}
.to-top:hover{color:var(--amber-soft);border-color:var(--amber);background:rgba(38,68,95,.5)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--gutter:20px}
  body{font-size:16px}
  .masthead__inner{min-height:64px;gap:16px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:block;
    margin:0;
    padding:8px 0 20px;
    max-height:calc(100dvh - var(--header-h));
    overflow-y:auto;
    background:rgba(18,41,61,.97);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-top:1px solid var(--steel);
    border-bottom:1px solid var(--steel);
    box-shadow:0 18px 40px rgba(0,0,0,.42);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-10px);
    transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms linear;
  }
  .site-header[data-open="true"] .site-nav,
  .site-nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translateY(0);
  }
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:0 var(--gutter);
  }
  .site-nav__list li + li{border-top:1px solid rgba(38,68,95,.6)}
  .site-nav__list a{
    display:block;
    padding:14px 2px;
    font-size:16px;
    font-weight:500;
    color:var(--paper);
  }
  .site-nav__list a::after{
    left:auto;
    right:0;
    top:50%;
    bottom:auto;
    width:14px;
    height:1px;
    transform:scaleX(0);
    transform-origin:100% 50%;
  }
  .site-nav__list a:hover{background:transparent;color:var(--amber-soft)}
  .site-nav__list a[aria-current="page"]::after{transform:scaleX(1)}
  .site-nav__cta{
    display:flex;
    margin:18px var(--gutter) 0;
    width:calc(100% - var(--gutter) * 2);
  }
  .section{margin:72px 0}
  .site-footer__top{
    grid-template-columns:1fr;
    gap:40px;
    padding:56px 0 40px;
  }
  .site-footer__summary{max-width:none}
}

@media (max-width:860px){
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-3,.col-4,.col-5{grid-column:span 3}
  .col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 6}
  .stagger-2,.stagger-3{margin-top:0}
  .section__title{font-size:26px}
  .site-footer__cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}

@media (max-width:600px){
  :root{--gutter:16px}
  body{font-size:16px;line-height:1.75}
  .status-strip{height:32px}
  .status-strip__inner{height:32px;gap:10px}
  .status-strip__hint{display:none}
  .status-strip__text{font-size:12px}
  .masthead__inner{min-height:60px}
  .brand__glyph{width:32px;height:32px}
  .brand__name{font-size:17px}
  .brand__tag{font-size:10px;letter-spacing:.12em}
  .nav-toggle__label{display:none}
  .grid-12{grid-template-columns:1fr;gap:16px}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 1}
  .section{margin:56px 0}
  .section__head{margin-bottom:28px;gap:16px}
  .panel{padding:20px}
  .lede{font-size:17px}
  .crumbs{font-size:11px}
  .site-footer__cols{grid-template-columns:1fr;gap:24px}
  .site-footer__contact{grid-template-columns:1fr;gap:16px}
  .site-footer__legal{flex-direction:column;align-items:flex-start;padding-bottom:32px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
}