:root{
  --bg:#0A1120;
  --bg-2:#121C2E;
  --line:#223047;
  --line-soft:rgba(34,48,71,.62);
  --glass:rgba(169,187,214,.10);
  --glass-strong:rgba(169,187,214,.16);
  --red:#FF4E2B;
  --red-soft:#FF8A5C;
  --cyan:#35F2D0;
  --ink:#E8EEF7;
  --muted:#94A3B8;
  --paper:#EDE9E1;
  --rail-w:88px;
  --bar-h:60px;
  --shell:1240px;
  --radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","HarmonyOS Sans",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","HarmonyOS Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}
::selection{background:var(--red);color:#fff}

body{
  margin:0;
  padding-left:var(--rail-w);
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  min-height:100vh;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.06;letter-spacing:-.01em;font-stretch:condensed}
h1{font-size:clamp(38px,6vw,72px)}
h2{font-size:clamp(26px,3.4vw,40px)}
h3{font-size:clamp(20px,2.2vw,27px)}
h4{font-size:clamp(17px,1.5vw,20px);font-weight:800}
p{max-width:72ch}

.mono{font-family:var(--font-mono);font-size:12.5px;font-weight:500;letter-spacing:.08em;font-variant-numeric:tabular-nums}
.num{font-family:var(--font-mono);font-weight:500;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--red);color:#fff;padding:12px 20px;font-weight:700;font-size:14px}
.skip-link:focus{left:12px;top:12px}

/* ===== shell ===== */
.wrap{width:min(100% - 36px,var(--shell));margin-inline:auto}
.stack{display:flex;flex-direction:column;gap:12px}
.rule{height:1px;border:0;background:var(--line);margin:0}

/* ===== header / rail ===== */
.site-header{position:fixed;top:0;right:auto;bottom:0;left:0;width:var(--rail-w);z-index:60}
.rail{
  position:relative;
  height:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:16px;
  padding:22px 10px 18px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-right:1px solid var(--line);
}
.rail::before{content:"";position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,var(--red),rgba(255,78,43,0) 78%)}

.brand{display:flex;flex-direction:column;align-items:center;gap:12px;color:var(--ink);min-width:0}
.brand__glyph{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);background:rgba(18,28,46,.72)}
.brand__type{display:flex;flex-direction:column;align-items:center;gap:6px}
.brand__name{writing-mode:vertical-rl;text-orientation:mixed;font-family:var(--font-display);font-weight:900;font-size:15px;letter-spacing:.24em;line-height:1;white-space:nowrap}
.brand__tag{display:none;font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:var(--muted)}

.nav-toggle{display:none;align-items:center;gap:9px;padding:8px 11px;border:1px solid var(--line);color:var(--muted);font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;border-radius:var(--radius);transition:color .2s var(--ease),border-color .2s var(--ease)}
.nav-toggle:hover{color:var(--ink);border-color:var(--red-soft)}
.nav-toggle__box{display:flex;flex-direction:column;gap:4px;width:18px}
.nav-toggle__bar{display:block;height:1.5px;width:100%;background:currentColor;transition:transform .26s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
.nav-toggle__text{line-height:1}

.site-nav{width:100%;flex:1 1 auto;display:flex;flex-direction:column;align-items:center;gap:4px;overflow-y:auto;overflow-x:hidden;scrollbar-width:none}
.site-nav::-webkit-scrollbar{display:none}
.site-nav__hint{writing-mode:vertical-rl;text-orientation:upright;font-family:var(--font-mono);font-size:9px;letter-spacing:.32em;color:var(--line);margin-bottom:4px}
.site-nav__list{display:flex;flex-direction:column;align-items:center;gap:2px;width:100%}
.site-nav__item{width:100%;display:flex;justify-content:center}
.site-nav__link{position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;width:100%;padding:12px 4px;color:var(--muted);transition:color .22s var(--ease),background .22s var(--ease)}
.site-nav__link::before{content:"";position:absolute;left:0;top:12%;bottom:12%;width:2px;background:transparent;transition:background .22s var(--ease)}
.site-nav__link:hover{color:var(--ink);background:rgba(169,187,214,.06)}
.site-nav__link[aria-current="page"]{color:#fff;background:rgba(255,78,43,.10)}
.site-nav__link[aria-current="page"]::before{background:var(--red)}
.site-nav__num{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.08em;color:var(--line);transition:color .22s var(--ease)}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--cyan)}
.site-nav__label{writing-mode:vertical-rl;text-orientation:mixed;font-size:13px;font-weight:500;letter-spacing:.22em}

.rail-cta{display:flex;flex-direction:column;align-items:center;gap:9px;width:100%;padding:14px 6px;background:var(--red);color:#fff;transition:background .2s var(--ease),transform .2s var(--ease)}
.rail-cta:hover{background:var(--red-soft)}
.rail-cta__dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:0 0 auto;animation:pulse 2.6s var(--ease) infinite}
.rail-cta__label{writing-mode:vertical-rl;font-family:var(--font-display);font-size:13px;font-weight:900;letter-spacing:.2em}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(53,242,208,.55)}
  70%{box-shadow:0 0 0 9px rgba(53,242,208,0)}
  100%{box-shadow:0 0 0 0 rgba(53,242,208,0)}
}

.back-entry{position:fixed;right:18px;bottom:18px;z-index:65;display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:999px;background:var(--red);color:#fff;font-size:13.5px;font-weight:800;letter-spacing:.02em;box-shadow:0 12px 32px rgba(255,78,43,.30);transition:transform .2s var(--ease),background .2s var(--ease)}
.back-entry:hover{background:var(--red-soft);transform:translateY(-2px)}
.back-entry[hidden]{display:none}

.scroll-progress{position:fixed;top:0;left:var(--rail-w);height:2px;width:0;z-index:70;pointer-events:none;background:linear-gradient(90deg,var(--red),var(--red-soft) 55%,var(--cyan));transition:width .1s linear}

/* ===== breadcrumbs ===== */
.crumbs{padding:22px 0 0}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted)}
.crumbs__item{display:flex;align-items:center;gap:8px}
.crumbs__sep{color:var(--line)}
.crumbs__link:hover{color:var(--cyan)}
.crumbs__current{color:var(--ink)}

/* ===== sections ===== */
.section{padding:clamp(48px,7vw,104px) 0}
.section--tight{padding:clamp(30px,4vw,56px) 0}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;padding-bottom:20px;margin-bottom:34px;border-bottom:1px solid var(--line)}
.section__title{margin-top:6px}
.section__lede{color:var(--muted);font-size:16px;max-width:62ch;margin-top:10px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.18em;color:var(--cyan);text-transform:uppercase}
.eyebrow::before{content:"";width:14px;height:1px;background:var(--cyan);display:block}

/* ===== grid ===== */
.grid{display:grid;gap:18px}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}

/* ===== cards ===== */
.card{position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 24px;transition:transform .26s var(--ease),border-color .26s var(--ease)}
.card:hover{border-color:rgba(255,78,43,.42);transform:translateY(-3px)}
.card--glass{background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-color:var(--glass-strong)}
.card--paper{background:var(--paper);color:#0A1120;border-color:var(--paper)}
.card--paper .card__meta,.card--paper .card__text{color:#4A5364}
.card__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}
.card__title{font-family:var(--font-display);font-weight:900;font-size:21px;line-height:1.2;margin-bottom:8px}
.card__text{color:var(--muted);font-size:15.5px;line-height:1.72}

.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 8px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.08em;color:var(--muted);white-space:nowrap}
.tag--cyan{border-color:rgba(53,242,208,.34);color:var(--cyan);background:rgba(53,242,208,.08)}
.tag--red{border-color:rgba(255,78,43,.42);color:var(--red-soft);background:rgba(255,78,43,.10)}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 22px;border:1px solid transparent;border-radius:var(--radius);font-size:15px;font-weight:700;line-height:1;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--red);color:#fff}
.btn--primary:hover{background:var(--red-soft)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:var(--red);color:var(--red-soft)}

.copy-btn{margin-left:auto;padding:4px 9px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;color:var(--muted);transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.copy-btn:hover{color:var(--ink);border-color:var(--red);background:rgba(255,78,43,.12)}
.copy-btn.is-copied{color:var(--cyan);border-color:var(--cyan);background:rgba(53,242,208,.10)}

/* ===== filter ===== */
.filter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.filter__btn{padding:8px 14px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--muted);transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.filter__btn:hover{color:var(--ink);border-color:var(--red-soft)}
.filter__btn[aria-pressed="true"]{background:var(--red);border-color:var(--red);color:#fff}
[data-filter-item][hidden]{display:none!important}
[data-filter-item].is-enter{animation:filterIn .34s var(--ease) both}
@keyframes filterIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ===== reveal ===== */
html.has-js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:var(--reveal-delay,0s)}
html.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ===== media placeholders ===== */
.media{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:
  radial-gradient(120% 100% at 10% 0%,rgba(255,78,43,.16),transparent 56%),
  linear-gradient(140deg,#121C2E 0%,#0A1120 62%,#0A1120 100%)}
.media::before{content:"";position:absolute;inset:0;background-image:
  linear-gradient(rgba(34,48,71,.85) 1px,transparent 1px),
  linear-gradient(90deg,rgba(34,48,71,.85) 1px,transparent 1px);
  background-size:34px 34px;opacity:.55;pointer-events:none}
.media::after{content:"";position:absolute;left:-12%;bottom:14%;width:124%;height:1px;background:linear-gradient(90deg,transparent,rgba(53,242,208,.85),transparent);transform:rotate(-13deg);opacity:.65;pointer-events:none}
.media>*{position:relative;z-index:1}
.media img,.media svg{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:16/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media--auto{min-height:180px}
.media__label{position:absolute;left:14px;bottom:12px;z-index:2;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--muted)}

/* ===== footer ===== */
.site-footer{position:relative;margin-top:clamp(40px,6vw,96px);border-top:1px solid var(--line);background:linear-gradient(180deg,#0A1120 0%,#0C1424 55%,#0A1120 100%)}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;width:180px;height:2px;background:linear-gradient(90deg,var(--red),rgba(255,78,43,0))}
.site-footer .wrap{padding:64px 0 26px}
.site-footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px 32px}
.site-footer__brand{min-width:0}
.site-footer__name{font-family:var(--font-display);font-weight:900;font-size:26px;letter-spacing:.02em;color:var(--ink);line-height:1.1}
.site-footer__line{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.75;max-width:40ch}
.site-footer__mark{margin-top:16px;color:var(--line);letter-spacing:.14em}
.site-footer__title{font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.18em;color:var(--cyan);text-transform:uppercase;margin-bottom:14px}
.site-footer__list{display:flex;flex-direction:column;gap:9px}
.site-footer__list a{color:var(--muted);font-size:15px;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.site-footer__list a:hover{color:var(--ink);padding-left:4px}
.site-footer__contact{grid-column:1 / -1;border-top:1px solid var(--line);padding-top:28px}
.site-footer__rows{display:grid;grid-template-columns:1fr;gap:0}
.site-footer__row{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;padding:12px 0;border-bottom:1px dashed var(--line-soft);max-width:none}
.site-footer__key{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--muted);min-width:48px}
.site-footer__val{font-size:15px;color:var(--ink);word-break:break-all}
.site-footer__note{margin-top:16px;color:var(--muted);font-size:14px;max-width:70ch}
.site-footer__base{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:40px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.site-footer__legal{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--muted)}
.site-footer__links{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em}
.site-footer__links a:hover{color:var(--cyan)}
.site-footer__links span{color:var(--line)}

/* ===== tablet ===== */
@media (min-width:900px) and (max-width:1100px){
  :root{--rail-w:74px}
  .site-nav__label{font-size:12px}
}
@media (max-width:1023px){
  .site-footer__grid{grid-template-columns:1fr 1fr}
  .site-footer__brand{grid-column:1 / -1}
}
@media (min-width:900px){
  .wrap{width:min(100% - 72px,var(--shell))}
  .site-footer__rows{grid-template-columns:repeat(3,minmax(0,1fr));gap:0 28px}
}

/* ===== mobile / top bar ===== */
@media (max-width:899px){
  :root{--bar-h:60px}
  body{padding-left:0;padding-top:var(--bar-h)}
  .site-header{position:fixed;top:0;right:0;bottom:auto;left:0;width:100%;height:var(--bar-h)}
  .rail{height:var(--bar-h);flex-direction:row;align-items:center;justify-content:space-between;gap:10px;padding:0 14px;border-right:0;border-bottom:1px solid var(--line);background:rgba(10,17,32,.88)}
  .rail::before{background:linear-gradient(90deg,var(--red),rgba(255,78,43,.15) 60%,transparent)}
  .brand{flex-direction:row;gap:10px;order:1;flex:1 1 auto;overflow:hidden}
  .brand__glyph{width:34px;height:34px;flex:0 0 auto}
  .brand__glyph svg{width:22px;height:22px}
  .brand__type{align-items:flex-start;gap:1px}
  .brand__name{writing-mode:horizontal-tb;font-size:16px;letter-spacing:.05em;white-space:nowrap}
  .brand__tag{display:none}
  .nav-toggle{order:3;display:inline-flex;flex:0 0 auto}
  .rail-cta{order:2;flex-direction:row;gap:7px;width:auto;padding:8px 12px;flex:0 0 auto}
  .rail-cta__label{writing-mode:horizontal-tb;font-family:var(--font-body);font-size:12.5px;font-weight:800;letter-spacing:.04em}
  .site-nav{position:absolute;top:100%;left:0;right:0;width:100%;align-items:stretch;gap:0;
    max-height:0;opacity:0;visibility:hidden;overflow:hidden;
    background:rgba(10,17,32,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    transition:max-height .34s var(--ease),opacity .24s var(--ease),visibility .34s var(--ease)}
  .site-nav[data-open]{max-height:min(76vh,580px);opacity:1;visibility:visible;overflow-y:auto;padding:8px 0 18px}
  .site-nav__hint{display:block;writing-mode:horizontal-tb;padding:4px 24px 10px;letter-spacing:.3em}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;padding:0 12px}
  .site-nav__item{width:100%}
  .site-nav__link{flex-direction:row;align-items:center;justify-content:flex-start;gap:14px;padding:14px 12px;width:100%;border-bottom:1px solid var(--line-soft)}
  .site-nav__link::before{left:0;top:0;bottom:0;width:3px}
  .site-nav__label{writing-mode:horizontal-tb;font-size:15.5px;letter-spacing:.1em}
  .site-nav__num{font-size:11px;min-width:24px}
  .scroll-progress{left:0}
  .back-entry{right:14px;bottom:14px;padding:10px 15px;font-size:13px}
}

@media (max-width:599px){
  body{font-size:16px}
  .site-footer__grid{grid-template-columns:1fr;gap:28px}
  .site-footer .wrap{padding:48px 0 22px}
  .site-footer__base{justify-content:flex-start;gap:8px}
  .brand__tag{display:none}
  .rail-cta{padding:8px 10px}
  .rail-cta__label{font-size:12px}
}
@media (min-width:560px) and (max-width:899px){
  .brand__tag{display:block}
}

@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.has-js [data-reveal]{opacity:1!important;transform:none!important}
  [data-filter-item].is-enter{animation:none!important}
  .rail-cta__dot{animation:none!important}
}