*,*::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;}
img,svg{display:block;max-width:100%;height:auto;}
a{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-weight:800;line-height:1.15;}

:root{
  --night:#06131F;
  --blue-deep:#0B2E59;
  --blue-stand:#1467C4;
  --teal:#0B5563;
  --lime:#C9FF3D;
  --orange:#FF7A2F;
  --paper:#F3EFE4;
  --mist:#9EB3C7;
  --info:#8CC8FF;
  --white:#FFFFFF;
  --ink:#15222E;

  --font-display:"Archivo Black","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell-max:1280px;
  --gutter:clamp(16px,4vw,40px);
  --radius:2px;
  --line:rgba(158,179,199,.18);
  --line-strong:rgba(158,179,199,.34);
  --ease:cubic-bezier(.22,.61,.36,1);
}

body{
  min-height:100vh;
  background-color:var(--night);
  background-image:
    radial-gradient(900px 520px at 82% -6%, rgba(20,103,196,.26), transparent 62%),
    radial-gradient(680px 460px at 4% 18%, rgba(11,85,99,.34), transparent 66%);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}

:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:2px;}

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:300;
  padding:10px 18px;
  border-radius:var(--radius);
  background:var(--lime);
  color:#0A1A05;
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:none;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(6,19,31,.9);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  backdrop-filter:blur(14px) saturate(130%);
  border-bottom:1px solid var(--line);
  transition:background-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-condensed{
  background:rgba(6,19,31,.975);
  box-shadow:0 14px 34px rgba(0,0,0,.42);
}
.site-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  height:2px;
  width:0;
  background:linear-gradient(90deg,var(--blue-stand) 0%,var(--info) 46%,var(--lime) 100%);
  transition:width .12s linear;
  pointer-events:none;
}
.header-inner{
  position:relative;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(12px,2vw,28px);
  transition:height .22s var(--ease);
}
.site-header.is-condensed .header-inner{height:60px;}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  color:var(--white);
  text-decoration:none;
}
.brand-mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  border-radius:var(--radius);
  background:var(--lime);
  color:#0A1A05;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.05em;
  transform:rotate(-4deg);
  box-shadow:2px 2px 0 rgba(20,103,196,.95);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(0deg) translateY(-1px);box-shadow:3px 5px 0 rgba(201,255,61,.3);}
.brand-text{display:flex;flex-direction:column;gap:2px;line-height:1.12;}
.brand-name{font-family:var(--font-display);font-size:15px;letter-spacing:-.01em;}
.brand-tag{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.06em;
  color:var(--mist);
  white-space:nowrap;
  max-height:16px;
  overflow:hidden;
  transition:opacity .2s var(--ease),max-height .2s var(--ease);
}
.site-header.is-condensed .brand-tag{opacity:0;max-height:0;}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:9px 12px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime);}
.nav-toggle-bars{display:grid;gap:4px;width:16px;}
.nav-toggle-bars span{display:block;height:2px;background:currentColor;transition:transform .2s var(--ease);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:first-child{transform:translateY(3px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:last-child{transform:translateY(-3px) rotate(-45deg);}
.nav-toggle-label{line-height:1;}

.site-nav{
  display:flex;
  flex:1 1 auto;
  min-width:0;
  align-items:center;
  justify-content:flex-end;
  gap:clamp(14px,2.2vw,30px);
}
.nav-list{display:flex;align-items:center;gap:clamp(6px,1.2vw,18px);counter-reset:navi;}
.nav-list a{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:9px 2px;
  color:var(--mist);
  font-size:14px;
  font-weight:500;
  letter-spacing:.02em;
  text-decoration:none;
  transition:color .18s var(--ease);
}
.nav-list a::before{
  counter-increment:navi;
  content:counter(navi,decimal-leading-zero);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.06em;
  color:rgba(140,200,255,.55);
  transform:translateY(-4px);
  transition:color .18s var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:2px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-list a:hover{color:var(--white);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a[aria-current="page"]{color:var(--lime);}
.nav-list a[aria-current="page"]::before{color:var(--lime);}
.nav-list a[aria-current="page"]::after{transform:scaleX(1);}

.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.status-pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 11px;
  border:1px solid rgba(201,255,61,.35);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--lime);
  white-space:nowrap;
}
.status-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(201,255,61,.18);
  animation:pulse 2.6s ease-in-out infinite;
}
.status-text{line-height:1;}
@keyframes pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 3px rgba(201,255,61,.18);}
  50%{opacity:.55;box-shadow:0 0 0 7px rgba(201,255,61,.05);}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  border:1px solid transparent;
  border-radius:var(--radius);
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn--sm{padding:9px 14px;font-size:13px;}
.btn--primary{background:var(--orange);color:#180800;}
.btn--primary:hover{background:#FF9152;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,47,.28);}
.btn--ghost{border-color:var(--line-strong);color:var(--paper);background:transparent;}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn--lime{background:var(--lime);color:#0A1A05;}
.btn--lime:hover{background:#D9FF74;transform:translateY(-1px);}

/* ---------- layout ---------- */
.container{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(44px,7vw,96px);}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:clamp(24px,3.4vw,46px);
}
.section-index{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--lime);
}
.section-index::before{content:"";display:inline-block;width:26px;height:2px;background:var(--lime);}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(1.8rem,3.6vw,3rem);
  line-height:1.08;
  letter-spacing:-.01em;
  color:var(--white);
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--info);
}
.lede{
  max-width:60ch;
  font-size:clamp(1rem,1.35vw,1.125rem);
  line-height:1.8;
  color:var(--mist);
}

.grid{display:grid;gap:clamp(16px,2.4vw,32px);}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));}
.grid--57{grid-template-columns:minmax(0,5fr) minmax(0,7fr);}
.grid--75{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
@media (max-width:820px){
  .grid--57,.grid--75{grid-template-columns:minmax(0,1fr);}
}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:18px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--mist);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:rgba(158,179,199,.5);}
.breadcrumb a{color:var(--mist);text-decoration:none;transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb [aria-current="page"]{color:var(--paper);}

/* ---------- prose and panels ---------- */
.prose{max-width:68ch;font-size:17px;line-height:1.78;color:#D6E1EC;}
.prose>*+*{margin-top:1.1em;}
.prose h2{font-family:var(--font-display);font-size:clamp(1.3rem,2.4vw,1.75rem);color:var(--white);letter-spacing:-.01em;}
.prose h3{font-size:1.125rem;color:var(--paper);}
.prose ul{list-style:disc;padding-left:1.2em;}
.prose li+li{margin-top:.4em;}
.prose a{color:var(--info);text-decoration:underline;text-underline-offset:3px;}

.paper{
  background:var(--paper);
  color:var(--ink);
  border-radius:var(--radius);
  padding:clamp(20px,3vw,40px);
}
.paper h2,.paper h3{color:var(--blue-deep);}
.paper a{color:#0B4E9B;}
.prose--paper{
  max-width:74ch;
  background:var(--paper);
  color:var(--ink);
  border-radius:var(--radius);
  padding:clamp(20px,3vw,40px);
}
.prose--paper h2,.prose--paper h3{color:var(--blue-deep);}
.prose--paper a{color:#0B4E9B;}

/* ---------- cards ---------- */
.card{
  position:relative;
  background:rgba(11,46,89,.42);
  border-left:2px solid var(--blue-stand);
  border-radius:0 var(--radius) var(--radius) 0;
  padding:clamp(18px,2.4vw,28px);
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{background:rgba(20,103,196,.28);border-left-color:var(--lime);}
.card--offset{transform:translateY(14px);}
.panel{
  background:rgba(11,85,99,.28);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.6vw,32px);
}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(11,46,89,.4);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.5;
}
.tag--lime{color:var(--lime);border-color:rgba(201,255,61,.45);background:rgba(201,255,61,.08);}
.tag--orange{color:var(--orange);border-color:rgba(255,122,47,.45);background:rgba(255,122,47,.1);}

/* ---------- scoreboard numbers ---------- */
.score{
  display:block;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  line-height:.92;
  letter-spacing:-.02em;
  color:var(--lime);
}
.score--xl{font-size:clamp(3.2rem,9vw,7rem);}

/* ---------- filters ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.filter-btn{
  padding:8px 15px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:transparent;
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  line-height:1.4;
  cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.filter-btn:hover{color:var(--white);border-color:var(--info);}
.filter-btn[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);color:#0A1A05;}

/* ---------- media ---------- */
.media{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius);
  background:linear-gradient(145deg,var(--blue-deep) 0%,var(--teal) 100%);
}
.media img{width:100%;height:100%;object-fit:cover;}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,19,31,0) 42%,rgba(6,19,31,.66) 100%);
  pointer-events:none;
}
.media--wide{aspect-ratio:16/9;}
.media--tall{aspect-ratio:3/4;}
.media--square{aspect-ratio:1/1;}
.media--slant{clip-path:polygon(0 0,100% 0,100% calc(100% - 2rem),0 100%);}

/* ---------- link arrow ---------- */
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding-bottom:3px;
  border-bottom:1px solid rgba(140,200,255,.35);
  color:var(--info);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  text-decoration:none;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.link-arrow::after{content:"→";transition:transform .18s var(--ease);}
.link-arrow:hover{color:var(--lime);border-color:var(--lime);}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- reveal ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.js [data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,120px);
  overflow:hidden;
  background:linear-gradient(174deg,#06131F 0%,#0B2E59 48%,#08243F 100%);
  color:var(--mist);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:5px;
  background:linear-gradient(90deg,var(--blue-stand) 0%,var(--teal) 44%,var(--lime) 100%);
}
.site-footer::after{
  content:"";
  position:absolute;
  top:-60px;
  right:-80px;
  width:400px;
  height:400px;
  background:radial-gradient(circle at center,rgba(201,255,61,.13),transparent 66%);
  pointer-events:none;
}
.footer-inner{
  position:relative;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:clamp(44px,6vw,78px) var(--gutter) 26px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(28px,4vw,56px);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.footer-mark{
  display:inline-grid;
  place-items:center;
  padding:8px 14px;
  border:1px solid rgba(201,255,61,.4);
  border-radius:var(--radius);
  background:rgba(201,255,61,.1);
  color:var(--lime);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  transform:rotate(-3deg);
}
.footer-brand-name{
  font-family:var(--font-display);
  font-size:clamp(1.25rem,2.4vw,1.65rem);
  color:var(--white);
  letter-spacing:-.01em;
}
.footer-brand-desc{max-width:32ch;font-size:14px;line-height:1.75;color:var(--mist);}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(165px,1fr));
  gap:clamp(22px,3vw,40px);
}
.footer-col-title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--info);
}
.footer-list{display:grid;gap:10px;}
.footer-list a{
  display:inline-block;
  color:var(--mist);
  font-size:14px;
  text-decoration:none;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-list a:hover{color:var(--lime);transform:translateX(2px);}
.footer-contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:16px 28px;
  margin-top:clamp(30px,4vw,50px);
  padding-top:clamp(20px,3vw,28px);
  border-top:1px solid var(--line);
}
.footer-contact-item{display:flex;flex-direction:column;gap:3px;}
.footer-contact-label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  color:rgba(140,200,255,.82);
}
.footer-contact-value{font-size:13.5px;color:var(--paper);word-break:break-word;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  margin-top:clamp(24px,3vw,36px);
  padding-top:20px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:rgba(158,179,199,.8);
}
.footer-copy,.footer-icp{line-height:1.6;}
.footer-note{
  max-width:82ch;
  margin-top:14px;
  font-size:12.5px;
  line-height:1.75;
  color:rgba(158,179,199,.72);
}

/* ---------- responsive header / footer ---------- */
@media (min-width:901px){
  .nav-toggle{display:none;}
  .footer-top{grid-template-columns:minmax(0,1.05fr) minmax(0,2fr);}
}
@media (max-width:900px){
  .header-inner{height:64px;}
  .site-header.is-condensed .header-inner{height:56px;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
    padding:6px var(--gutter) 22px;
    background:linear-gradient(180deg,rgba(11,46,89,.99) 0%,rgba(6,19,31,.995) 100%);
    border-bottom:1px solid var(--line-strong);
    box-shadow:0 26px 50px rgba(0,0,0,.46);
  }
  .site-nav[data-open="true"]{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;margin-top:6px;}
  .nav-list a{
    padding:14px 0;
    font-size:15px;
    border-bottom:1px solid var(--line);
  }
  .nav-list a::after{display:none;}
  .nav-list a[aria-current="page"]{
    padding-left:12px;
    box-shadow:inset 3px 0 0 var(--lime);
  }
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:20px;}
  .nav-actions .btn{width:100%;}
  .status-pill{align-self:flex-start;}
  .card--offset{transform:none;}
}
@media (max-width:420px){
  .brand-tag{display:none;}
  .brand-name{font-size:14px;}
  .nav-toggle-label{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;
  }
  .status-dot{animation:none;}
  .js [data-reveal]{opacity:1;transform:none;}
  .card--offset{transform:none;}
}