:root{
  --ink:#0B241D;
  --ink-2:#12362B;
  --moss:#4F6B4A;
  --stone:#8A8B80;
  --paper:#F4EEDF;
  --paper-2:#D8D2C4;
  --ember:#F04E2F;
  --gold:#E8B45A;
  --clay:#B45A3C;
  --text:#101512;
  --rail:252px;
  --font-display:"Source Han Sans Heavy","Alibaba PuHuiTi 115","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Roboto Mono","SFMono-Regular",ui-monospace,monospace;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --line:rgba(138,139,128,.35);
  --line-soft:rgba(244,238,223,.14);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px;}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dd{margin:0;}
ul,ol{list-style:none;padding:0;}
img,svg{max-width:100%;}
button{font:inherit;color:inherit;}

html{text-rendering:optimizeLegibility;}
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.78;
  letter-spacing:.01em;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(circle at 16% -8%, rgba(79,107,74,.34), transparent 52%),
    radial-gradient(circle at 92% 4%, rgba(180,90,60,.16), transparent 44%),
    repeating-linear-gradient(90deg, rgba(244,238,223,.026) 0 1px, transparent 1px 68px);
  min-height:100vh;
  padding-left:0;
  -webkit-font-smoothing:antialiased;
}
main{display:block;}
p{color:inherit;}
a{color:inherit;}

:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:2px;}
#main-content:focus{outline:none;}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  transform:translateY(-180%);
  background:var(--gold);color:#17100D;
  padding:10px 16px;font-weight:700;font-size:14px;text-decoration:none;
  border:2px solid #17100D;border-radius:2px;
  transition:transform .2s ease;
}
.skip-link:focus{transform:translateY(0);}

/* ---------- header: tactical rail ---------- */
.site-header{
  position:fixed;top:0;left:0;bottom:0;z-index:60;
  width:var(--rail);
  display:flex;flex-direction:column;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(circle at 0% 0%, rgba(240,78,47,.18), transparent 46%),
    repeating-linear-gradient(180deg, rgba(244,238,223,.045) 0 1px, transparent 1px 40px);
  border-right:1px solid var(--line-soft);
  overflow-y:auto;overscroll-behavior:contain;
}
.site-header__progress{
  position:fixed;top:0;left:var(--rail);right:0;height:3px;z-index:70;
  background:rgba(244,238,223,.10);pointer-events:none;
}
.site-header__progress-bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--ember),var(--gold));
  transition:transform .12s linear;
}
.site-header__frame{
  position:relative;flex:1 1 auto;min-height:100%;
  display:flex;flex-direction:column;gap:18px;
  padding:26px 20px 28px;
}
.brand{
  display:grid;gap:5px;
  text-decoration:none;color:var(--paper);
  padding-bottom:18px;
  border-bottom:2px solid rgba(240,78,47,.55);
}
.brand__mark{
  font-family:var(--font-num);font-size:11px;letter-spacing:.3em;
  color:var(--gold);
}
.brand__name{
  font-family:var(--font-display);font-weight:900;
  font-size:22px;line-height:1.08;letter-spacing:-.01em;
}
.brand__tagline{font-size:12.5px;color:rgba(244,238,223,.62);letter-spacing:.02em;}
.brand:hover .brand__name{color:var(--gold);}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:9px 12px;cursor:pointer;
  background:transparent;color:var(--paper);
  border:1px solid rgba(244,238,223,.4);
  font-family:var(--font-num);letter-spacing:.14em;
}
.nav-toggle:hover{border-color:var(--ember);color:var(--gold);}
.nav-toggle__bars{display:grid;gap:4px;width:18px;}
.nav-toggle__bars span{display:block;height:2px;background:currentColor;transition:transform .22s ease;}
.nav-toggle__label{font-size:12px;}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(3px) rotate(45deg);}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(2){transform:translateY(-3px) rotate(-45deg);}

.primary-nav{margin-top:2px;}
.nav-eyebrow{
  font-family:var(--font-num);font-size:10.5px;letter-spacing:.28em;
  color:var(--stone);margin-bottom:10px;
}
.nav-list{display:flex;flex-direction:column;}
.nav-item{border-top:1px solid rgba(138,139,128,.22);}
.nav-item:last-child{border-bottom:1px solid rgba(138,139,128,.22);}
.nav-link{
  position:relative;
  display:grid;grid-template-columns:26px 1fr;align-items:baseline;gap:8px;
  padding:11px 6px 11px 4px;
  font-size:15px;font-weight:500;text-decoration:none;
  color:rgba(244,238,223,.82);
  transition:color .2s ease,padding-left .2s ease,background-color .2s ease;
}
.nav-link::before{
  content:"";position:absolute;left:-20px;top:6px;bottom:6px;width:3px;
  background:var(--ember);opacity:0;transform:scaleY(.35);
  transition:opacity .2s ease,transform .2s ease;
}
.nav-link__index{
  font-family:var(--font-num);font-size:11px;letter-spacing:.08em;color:var(--stone);
}
.nav-link:hover{color:var(--paper);padding-left:10px;background:rgba(79,107,74,.18);}
.nav-link:hover::before{opacity:.55;transform:scaleY(1);}
.nav-link[aria-current="page"]{
  color:var(--paper);
  background:linear-gradient(90deg,rgba(240,78,47,.20),rgba(240,78,47,0) 78%);
}
.nav-link[aria-current="page"]::before{opacity:1;transform:scaleY(1);}
.nav-link[aria-current="page"] .nav-link__index{color:var(--ember);}
.nav-link[aria-current="page"] .nav-link__text{text-decoration:underline;text-decoration-color:var(--gold);text-underline-offset:5px;text-decoration-thickness:2px;}

.header-meta{
  margin-top:auto;display:grid;gap:12px;padding-top:20px;
  border-top:1px dashed rgba(138,139,128,.45);
}
.header-meta__note{font-size:12px;line-height:1.6;color:rgba(244,238,223,.55);}
.site-header .btn{width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-weight:700;font-size:14px;letter-spacing:.02em;
  padding:12px 18px;border:1px solid transparent;border-radius:2px;
  text-decoration:none;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn--ember{background:var(--ember);color:#17100D;box-shadow:4px 4px 0 rgba(11,36,29,.9);}
.btn--ember:hover{background:#FF6444;transform:translate(-1px,-1px);box-shadow:6px 6px 0 rgba(11,36,29,.85);}
.btn--gold{background:var(--gold);color:#1A1207;box-shadow:4px 4px 0 rgba(11,36,29,.85);}
.btn--gold:hover{background:#F5C577;transform:translate(-1px,-1px);}
.btn--ghost{background:transparent;color:var(--paper);border-color:rgba(244,238,223,.42);}
.btn--ghost:hover{border-color:var(--ember);color:var(--gold);background:rgba(240,78,47,.10);}

/* ---------- footer: folder back ---------- */
.site-footer{
  position:relative;
  border-top:1px solid rgba(232,180,90,.3);
  background-color:var(--ink);
  background-image:
    radial-gradient(circle at 84% 120%, rgba(79,107,74,.34), transparent 55%),
    repeating-linear-gradient(180deg, rgba(244,238,223,.03) 0 1px, transparent 1px 44px);
  color:var(--paper);
}
.site-footer::before{
  content:"";display:block;height:7px;
  background:repeating-linear-gradient(115deg,var(--ember) 0 14px,var(--clay) 14px 28px);
}
.site-footer__grid{
  display:grid;gap:30px 26px;
  grid-template-columns:repeat(2,minmax(0,1fr));
  max-width:1280px;margin-inline:auto;
  padding:46px clamp(18px,4vw,52px) 34px;
}
.footer-brand{display:grid;gap:8px;align-content:start;grid-column:1/-1;}
.footer-brand__name{
  font-family:var(--font-display);font-weight:900;font-size:22px;letter-spacing:-.01em;
  line-height:1.1;
}
.footer-brand__tagline{
  font-family:var(--font-num);font-size:12.5px;letter-spacing:.16em;color:var(--gold);
}
.footer-note{font-size:13px;line-height:1.7;color:rgba(244,238,223,.55);max-width:36ch;}
.footer-col{display:grid;gap:12px;align-content:start;}
.footer-col__title{
  font-family:var(--font-num);font-size:11px;letter-spacing:.24em;
  color:var(--gold);padding-bottom:8px;
  border-bottom:1px solid rgba(232,180,90,.28);
}
.footer-links{display:grid;gap:9px;}
.footer-link{
  display:inline-block;font-size:14.5px;text-decoration:none;
  color:rgba(244,238,223,.78);
  transition:color .18s ease,transform .18s ease;
}
.footer-link:hover{color:var(--paper);transform:translateX(3px);}
.footer-contact{
  grid-column:1/-1;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px 28px;
  background:var(--paper);color:var(--text);
  padding:22px clamp(18px,3vw,30px);
  border-radius:2px;
  box-shadow:6px 6px 0 rgba(216,210,196,.20),12px 12px 0 rgba(216,210,196,.08);
}
.footer-contact__row{display:grid;gap:4px;}
.footer-contact__label{
  font-family:var(--font-num);font-size:10.5px;letter-spacing:.22em;
  color:var(--clay);text-transform:uppercase;
}
.footer-contact__value{
  font-size:15px;color:var(--text);line-height:1.6;word-break:break-word;
}
.footer-contact__value--mono{font-family:var(--font-num);letter-spacing:.03em;}
.footer-base{
  display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between;
  max-width:1280px;margin-inline:auto;
  padding:18px clamp(18px,4vw,52px) 30px;
  border-top:1px solid rgba(138,139,128,.3);
  font-size:12.5px;color:rgba(244,238,223,.55);
}
.footer-base__icp{font-family:var(--font-num);letter-spacing:.06em;color:rgba(232,180,90,.8);}
.footer-base__meta{max-width:46ch;}

/* ---------- layout ---------- */
.container{
  width:100%;max-width:1180px;margin-inline:auto;
  padding-inline:clamp(18px,4vw,44px);
}
.grid{display:grid;gap:clamp(16px,2.4vw,26px);grid-template-columns:1fr;}
.grid--split,.grid--thirds{grid-template-columns:1fr;}
.ruler{
  height:1px;margin-block:26px;
  background-image:repeating-linear-gradient(90deg,rgba(138,139,128,.6) 0 10px,transparent 10px 20px);
}

/* ---------- panels ---------- */
.panel{
  position:relative;
  background:var(--ink-2);
  border:1px solid var(--line);
  padding:clamp(20px,3vw,32px);
  box-shadow:10px 10px 0 rgba(11,36,29,.55);
}
.panel--ink{background:var(--ink);}
.panel--paper{
  background:var(--paper);color:var(--text);
  border-color:rgba(16,21,18,.16);
  box-shadow:10px 10px 0 var(--paper-2);
}
.panel__index{
  font-family:var(--font-num);font-size:12px;letter-spacing:.24em;color:var(--ember);
}
.panel--paper .panel__index{color:var(--clay);}
.panel__title{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(24px,2.6vw,34px);line-height:1.22;letter-spacing:-.01em;
  margin-top:8px;
}
.panel__body{
  margin-top:14px;font-size:16.5px;line-height:1.8;
  color:rgba(244,238,223,.82);
}
.panel--paper .panel__body{color:#2A2F29;}

/* ---------- cards ---------- */
.card{
  position:relative;display:grid;gap:10px;
  background:var(--ink-2);
  border:1px solid rgba(138,139,128,.32);
  padding:22px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(232,180,90,.5);box-shadow:8px 10px 0 rgba(11,36,29,.6);}
.card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.card__title{font-family:var(--font-display);font-weight:900;font-size:20px;letter-spacing:-.01em;line-height:1.25;}
.card__body{font-size:15px;line-height:1.75;color:rgba(244,238,223,.75);}

/* ---------- ticket labels ---------- */
.ticket{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
  padding:6px 12px;border:1px solid currentColor;
  color:var(--gold);background:rgba(11,36,29,.4);
}
.ticket::before{content:"";width:7px;height:7px;background:currentColor;transform:rotate(45deg);}
.ticket--ember{color:var(--ember);}
.ticket--paper{color:var(--ink);background:var(--paper-2);border-color:rgba(16,21,18,.25);}

/* ---------- numeric data ---------- */
.data-num{
  display:inline-block;
  font-family:var(--font-num);font-weight:700;
  font-size:clamp(30px,4vw,52px);line-height:1;letter-spacing:-.02em;
  color:var(--gold);
}
.data-num--xl{font-size:clamp(46px,7vw,88px);}
.data-num__unit{
  font-family:var(--font-body);font-size:.34em;letter-spacing:.14em;
  color:rgba(244,238,223,.6);margin-left:8px;
}

/* ---------- tags ---------- */
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-family:var(--font-num);font-size:12.5px;letter-spacing:.1em;
  padding:5px 10px;
  border:1px solid rgba(138,139,128,.55);
  background:rgba(18,54,43,.6);
  color:rgba(244,238,223,.82);
}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12.5px;letter-spacing:.06em;
  color:rgba(244,238,223,.55);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb__item::after{content:"/";color:rgba(138,139,128,.7);}
.breadcrumb__item:last-child::after{content:none;}
.breadcrumb a{text-decoration:none;border-bottom:1px solid transparent;}
.breadcrumb a:hover{color:var(--gold);border-bottom-color:var(--gold);}

/* ---------- prose ---------- */
.prose{max-width:68ch;font-size:17px;line-height:1.85;color:rgba(244,238,223,.86);}
.prose > * + *{margin-top:1.05em;}
.prose h2,.prose h3{
  font-family:var(--font-display);font-weight:900;line-height:1.28;letter-spacing:-.01em;
  color:var(--paper);
}
.prose h2{font-size:clamp(24px,3vw,34px);margin-top:1.9em;}
.prose h3{font-size:clamp(19px,2.2vw,23px);margin-top:1.5em;}
.prose ul{list-style:disc;padding-left:1.3em;}
.prose ol{list-style:decimal;padding-left:1.3em;}
.prose li + li{margin-top:.5em;}
.prose a{color:var(--gold);text-underline-offset:3px;}
.prose strong{color:var(--paper);}
.prose--paper{color:#242A25;}
.prose--paper h2,.prose--paper h3{color:var(--text);}
.prose--paper strong{color:var(--text);}
.prose--paper a{color:var(--clay);}

/* ---------- media ---------- */
.media{
  position:relative;isolation:isolate;
  border:1px solid var(--line);
  background:var(--ink-2);
  overflow:hidden;
}
.media__frame{
  position:relative;display:block;
  aspect-ratio:16 / 10;
  background-image:
    repeating-linear-gradient(115deg,rgba(240,78,47,.12) 0 14px,transparent 14px 32px),
    linear-gradient(135deg,var(--moss),var(--ink-2) 70%);
  overflow:hidden;
}
.media__frame img,.media__img{
  display:block;width:100%;height:100%;object-fit:cover;
}
.media--slant .media__frame{clip-path:polygon(0 0,100% 0,100% 86%,0 100%);}
.media__caption{
  position:absolute;left:0;bottom:0;z-index:2;
  padding:6px 12px;
  background:rgba(11,36,29,.88);
  color:var(--paper);
  font-family:var(--font-num);font-size:11.5px;letter-spacing:.14em;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease;}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- back to top ---------- */
.back-to-top{
  position:fixed;right:clamp(14px,3vw,26px);bottom:clamp(14px,3vw,26px);z-index:90;
  display:grid;place-items:center;
  width:48px;height:48px;padding:0;
  border:2px solid var(--ink);border-radius:2px;
  background:var(--paper);color:var(--ink);
  font-family:var(--font-num);font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px);
  box-shadow:4px 4px 0 rgba(240,78,47,.95);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease,color .2s ease;
}
.back-to-top[data-visible="true"]{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{background:var(--ember);color:#17100D;}

/* ---------- responsive ---------- */
@media (min-width:760px){
  .grid--split{grid-template-columns:1.12fr .88fr;}
  .grid--thirds{grid-template-columns:repeat(2,minmax(0,1fr));}
  .site-footer__grid{grid-template-columns:minmax(200px,1.5fr) repeat(2,minmax(0,1fr));}
  .footer-brand{grid-column:1/-1;}
}
@media (min-width:1024px){
  body{padding-left:var(--rail);}
  .grid--thirds{grid-template-columns:repeat(3,minmax(0,1fr));}
  .site-footer__grid{grid-template-columns:minmax(240px,1.5fr) repeat(3,minmax(130px,1fr));gap:30px 28px;}
  .footer-brand{grid-column:auto;}
}
@media (max-width:1023px){
  body{padding-left:0;}
  html{scroll-padding-top:100px;}
  .site-header{
    position:sticky;top:0;left:auto;bottom:auto;right:auto;
    width:100%;height:auto;
    border-right:0;border-bottom:1px solid var(--line-soft);
    overflow:visible;
  }
  .site-header[data-open="true"]{max-height:100vh;overflow-y:auto;}
  .site-header__progress{left:0;}
  .site-header__frame{
    flex:0 0 auto;flex-direction:row;flex-wrap:wrap;align-items:center;
    gap:10px 14px;min-height:0;padding:12px 16px;
  }
  .brand{padding-bottom:0;border-bottom:0;gap:2px;}
  .brand__mark{display:none;}
  .brand__name{font-size:17px;}
  .brand__tagline{font-size:11px;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .primary-nav{display:none;flex:1 0 100%;margin-top:6px;padding-top:4px;border-top:1px solid rgba(138,139,128,.3);}
  .site-header[data-open="true"] .primary-nav{display:block;}
  .header-meta{display:none;}
  .site-header[data-open="true"] .header-meta{
    display:grid;flex:1 0 100%;margin-top:2px;padding-top:14px;
  }
  .nav-eyebrow{margin-bottom:8px;}
  .nav-link{padding:13px 4px;font-size:16px;}
  .nav-link::before{left:-16px;width:4px;top:8px;bottom:8px;}
  .nav-link:hover{padding-left:8px;}
  .footer-base{flex-direction:column;align-items:flex-start;gap:8px;}
}

@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;}
  .back-to-top{transition:none;}
}