:root{
  --ink:#0A0A0E;
  --iron:#15151D;
  --line:#262633;
  --red:#C81724;
  --red-bright:#FF5A5F;
  --cyan:#2FE3D6;
  --yellow:#FFD23F;
  --green:#35E08A;
  --text:#A8A8B6;
  --white:#F4F4F7;
  --paper:#F3F1EC;

  --f-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --rail:72px;
  --gutter:clamp(18px,4vw,40px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--ink);
  color:var(--text);
  font-family:var(--f-sans);
  font-size:15px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,svg,video{display:block;max-width:100%}
h1,h2,h3,h4{font-weight:900;color:var(--white);letter-spacing:-.02em;line-height:.98;margin:0 0 .6em}
h1{font-size:clamp(40px,7vw,112px)}
h2{font-size:clamp(28px,4.2vw,72px)}
h3{font-size:clamp(20px,2.4vw,30px)}
h4{font-size:17px;line-height:1.4}
p{margin:0 0 1.1em}
ul,ol{padding-left:1.15em}
a{color:var(--cyan);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--white)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
hr{border:0;height:1px;background:var(--line);margin:0}
:focus-visible{outline:2px solid var(--yellow);outline-offset:3px}
::selection{background:var(--red);color:#fff}
#main-content{scroll-margin-top:140px}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  top:0;left:0;
  z-index:300;
  transform:translateY(-130%);
  background:var(--yellow);
  color:var(--ink);
  font-size:13px;
  font-weight:800;
  letter-spacing:.08em;
  padding:12px 22px;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0);color:var(--ink)}

/* ---------- shared layout ---------- */
.wrap{width:100%;max-width:1440px;margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,6vw,80px)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:18px;
  border-bottom:1px solid var(--line);
  padding-bottom:14px;
  margin-bottom:clamp(22px,3vw,36px);
}
.eyebrow{font-family:var(--f-mono);font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--red-bright);margin:0 0 12px}
.section-index{font-family:var(--f-mono);font-size:12px;letter-spacing:.22em;color:var(--cyan)}
.lede{font-size:17px;max-width:62ch;color:var(--text)}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;color:var(--text)}
.breadcrumb a{color:var(--cyan)}
.breadcrumb-sep{color:var(--line)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  font-size:13px;font-weight:800;letter-spacing:.08em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--solid{background-color:var(--red);color:#fff;border-color:var(--red)}
.btn--solid:hover,.btn--solid:focus-visible{background-color:var(--red-bright);border-color:var(--red-bright);color:#fff}
.btn--line{background-color:transparent;border-color:var(--line);color:var(--white)}
.btn--line:hover,.btn--line:focus-visible{border-color:var(--cyan);color:var(--cyan);background-color:rgba(47,227,214,.08)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background-color:var(--ink);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:"";position:absolute;top:0;left:0;
  height:3px;width:clamp(120px,22vw,280px);
  background-color:var(--red);
  z-index:2;
}
.header-frame{display:grid;grid-template-columns:var(--rail) minmax(0,1fr)}
.frame-rail{
  position:relative;
  display:flex;align-items:center;justify-content:center;
  border-right:1px solid var(--line);
  overflow:hidden;
}
.frame-rail::before{
  content:"";position:absolute;top:0;left:0;right:0;height:48%;
  background:linear-gradient(180deg,rgba(200,23,36,.3),rgba(200,23,36,0));
}
.rail-code{
  position:relative;
  writing-mode:vertical-rl;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.34em;
  color:var(--red-bright);text-transform:uppercase;
}
.header-body{min-width:0}

.header-top{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;
  padding:14px clamp(16px,2.2vw,28px);
  border-bottom:1px solid var(--line);
  transition:padding .28s var(--ease);
}
.site-header[data-condensed] .header-top{padding-block:9px}

.brand{display:inline-flex;align-items:center;gap:14px;color:var(--white)}
.brand:hover{color:var(--white)}
.brand-block{position:relative;flex:none;width:34px;height:34px;background-color:var(--red)}
.brand-block::after{content:"";position:absolute;right:-5px;bottom:-5px;width:14px;height:14px;background-color:var(--cyan)}
.brand-text{display:block}
.brand-name{display:block;font-size:19px;font-weight:900;letter-spacing:.02em;line-height:1.15}
.brand-sub{display:block;font-family:var(--f-mono);font-size:10px;letter-spacing:.26em;color:var(--text);line-height:1.5}

.header-pulse{display:flex;align-items:center;gap:clamp(12px,2vw,26px)}
.pulse-item{display:flex;align-items:baseline;gap:7px}
.pulse-dot{width:7px;height:7px;flex:none;align-self:center;background-color:var(--green);animation:pulseDot 2s infinite}
.pulse-key{font-size:11px;letter-spacing:.14em;color:var(--text)}
.pulse-value{font-family:var(--f-mono);font-size:20px;font-weight:700;letter-spacing:.04em;color:var(--cyan)}
.pulse-value--time{color:var(--white)}
@keyframes pulseDot{
  0%{box-shadow:0 0 0 0 rgba(53,224,138,.55)}
  70%{box-shadow:0 0 0 9px rgba(53,224,138,0)}
  100%{box-shadow:0 0 0 0 rgba(53,224,138,0)}
}

.load-badge{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;
  padding:5px 9px;
  border:1px solid var(--line);
  background-color:var(--iron);
  color:var(--text);
  white-space:nowrap;
  transition:background-color .5s var(--ease),color .5s var(--ease),border-color .5s var(--ease);
}
.load-badge[data-lit]{background-color:var(--yellow);border-color:var(--yellow);color:var(--ink)}

.header-nav-row{display:flex;align-items:stretch;justify-content:space-between}
.site-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.nav-item{display:flex}
.nav-link{
  position:relative;
  display:flex;align-items:center;gap:9px;
  padding:15px clamp(14px,1.7vw,24px);
  font-size:14px;font-weight:700;letter-spacing:.04em;
  color:var(--text);
  border-right:1px solid var(--line);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background-color:var(--red-bright);
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--white);background-color:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--white);background-color:rgba(200,23,36,.14)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background-color:var(--red)}
.nav-index{font-family:var(--f-mono);font-size:10px;letter-spacing:.06em;color:var(--cyan)}
.nav-link[aria-current="page"] .nav-index{color:var(--yellow)}

.header-tools{
  display:flex;align-items:center;gap:12px;flex:none;
  padding:9px clamp(16px,2.2vw,24px);
  border-left:1px solid var(--line);
}
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:10px 14px;
  border:1px solid var(--line);
  color:var(--white);
  font-size:12px;font-weight:800;letter-spacing:.1em;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--red);background-color:rgba(200,23,36,.16)}
.nav-toggle-bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;right:0;height:2px;background-color:currentColor;
  transition:transform .22s var(--ease),top .22s var(--ease),bottom .22s var(--ease);
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{bottom:4px;transform:rotate(-45deg)}

.status-strip{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;
  max-height:64px;
  padding:9px clamp(16px,2.2vw,28px);
  background-color:var(--iron);
  border-top:1px solid var(--line);
  overflow:hidden;
  transition:max-height .3s var(--ease),padding .3s var(--ease),opacity .24s var(--ease),border-color .3s var(--ease);
}
.site-header[data-condensed] .status-strip{max-height:0;padding-top:0;padding-bottom:0;opacity:0;border-top-color:transparent}
.status-list{display:flex;align-items:center;gap:clamp(12px,2vw,28px);list-style:none;margin:0;padding:0;overflow-x:auto;scrollbar-width:none}
.status-list::-webkit-scrollbar{display:none}
.status-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:var(--text);white-space:nowrap;
  padding-bottom:1px;
  border-bottom:1px dashed transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.status-chip:hover,.status-chip:focus-visible{color:var(--white);border-bottom-color:var(--cyan)}
.chip-dot{width:6px;height:6px;flex:none;background-color:var(--green)}
.status-meta{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;color:var(--text);white-space:nowrap}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  padding-inline:var(--gutter);
  background-color:var(--iron);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;height:3px;width:clamp(120px,26vw,320px);background-color:var(--red)}
.footer-inner{width:100%;max-width:1440px;margin-inline:auto}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:clamp(24px,3vw,48px);
  padding:clamp(44px,6vw,68px) 0 clamp(28px,4vw,42px);
}
.footer-brand{max-width:330px}
.footer-brand .brand{margin-bottom:18px}
.footer-kicker{font-family:var(--f-mono);font-size:11px;letter-spacing:.3em;color:var(--red-bright);margin:0 0 10px}
.footer-claim{font-size:14px;margin:0;color:var(--text)}
.footer-col-title{font-family:var(--f-mono);font-size:12px;font-weight:800;letter-spacing:.24em;color:var(--white);margin:0 0 18px}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-list a{
  position:relative;display:inline-block;
  font-size:14px;color:var(--text);
  padding-bottom:2px;
  transition:color .2s var(--ease);
}
.footer-list a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
  background-color:var(--cyan);
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.footer-list a:hover,.footer-list a:focus-visible{color:var(--white)}
.footer-list a:hover::after,.footer-list a:focus-visible::after{transform:scaleX(1)}
.footer-fact{font-size:13px;line-height:1.7;color:var(--text);margin:0 0 12px}
.footer-fact strong{color:var(--white);font-weight:700}
.footer-note{
  border-top:1px solid var(--line);
  padding:20px 0;
  max-width:980px;
  font-size:13px;
  color:var(--text);
  margin:0;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;
  padding:18px 0 26px;
  border-top:1px solid var(--line);
}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:clamp(12px,2vw,22px);
  font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--text);
}
.footer-legal a{color:var(--text);border-bottom:1px solid var(--line);padding-bottom:1px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.footer-legal a:hover,.footer-legal a:focus-visible{color:var(--cyan);border-color:var(--cyan)}
.footer-meta{display:flex;align-items:center;gap:14px;font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;color:var(--text)}

/* ---------- generic content components ---------- */
.grid{display:grid;gap:clamp(16px,2vw,26px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}

.panel{position:relative;background-color:var(--iron);border:1px solid var(--line);padding:clamp(18px,2.4vw,28px)}
.panel--edge::before{content:"";position:absolute;top:-1px;left:-1px;width:44px;height:3px;background-color:var(--red)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;
  padding:4px 9px;
  border:1px solid var(--line);
  color:var(--text);
}
.tag--live{color:var(--cyan);border-color:rgba(47,227,214,.42)}
.tag--done{color:var(--green);border-color:rgba(53,224,138,.42)}
.tag--soon{color:var(--yellow);border-color:rgba(255,210,63,.42)}

.media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  background-color:var(--iron);
  background-image:
    linear-gradient(rgba(38,38,51,.9) 1px,transparent 1px),
    linear-gradient(90deg,rgba(38,38,51,.9) 1px,transparent 1px),
    radial-gradient(circle at 74% 20%,rgba(47,227,214,.18),transparent 58%),
    radial-gradient(circle at 16% 86%,rgba(200,23,36,.3),transparent 62%);
  background-size:32px 32px,32px 32px,100% 100%,100% 100%;
}
.media > img,.media > video{width:100%;height:100%;object-fit:cover}
.media::after{content:"";position:absolute;left:0;right:0;bottom:0;height:46%;background:linear-gradient(180deg,rgba(10,10,14,0),rgba(10,10,14,.78));pointer-events:none}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}

.mono{font-family:var(--f-mono);letter-spacing:.06em}
.text-accent{color:var(--cyan)}
.text-white{color:var(--white)}
.muted{color:var(--text)}
.divider{height:1px;background-color:var(--line);border:0;margin:clamp(24px,4vw,44px) 0}
.link-sweep{position:relative;display:inline-block;color:var(--cyan)}
.link-sweep::after{
  content:"";position:absolute;left:0;bottom:-1px;width:100%;height:1px;
  background-color:currentColor;
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.link-sweep:hover::after,.link-sweep:focus-visible::after{transform:scaleX(1)}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;
  right:clamp(14px,3vw,32px);
  bottom:clamp(14px,3vw,32px);
  z-index:140;
  display:grid;place-items:center;
  width:48px;height:48px;
  background-color:var(--iron);
  border:1px solid var(--line);
  color:var(--cyan);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),visibility .22s;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover,.to-top:focus-visible{background-color:var(--red);border-color:var(--red);color:#fff}
.to-top-arrow{width:11px;height:11px;border-left:2px solid currentColor;border-top:2px solid currentColor;transform:rotate(45deg)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .header-frame{grid-template-columns:1fr}
  .frame-rail{display:none}
  .header-top{flex-wrap:wrap;gap:12px;padding:12px 16px}
  .site-header[data-condensed] .header-top{padding-block:12px}
  .header-nav-row{flex-direction:column-reverse;align-items:stretch}
  .header-tools{border-left:0;padding:10px 16px;justify-content:space-between}
  .nav-toggle{display:inline-flex}
  .site-nav{max-height:0;overflow:hidden;border-top:1px solid var(--line);transition:max-height .3s var(--ease)}
  .site-nav[data-open]{max-height:620px}
  .nav-list{flex-direction:column}
  .nav-item{display:block}
  .nav-link{border-right:0;border-bottom:1px solid var(--line);padding:14px 18px}
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{max-width:none;grid-column:1 / -1}
}
@media (max-width:640px){
  body{font-size:15px}
  .header-pulse{gap:12px;flex-wrap:wrap}
  .pulse-value{font-size:17px}
  .load-badge{font-size:10px}
  .brand-sub{letter-spacing:.18em}
  .status-strip{flex-wrap:wrap;gap:8px}
  .status-meta{display:none}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}