:root{
  --ink:#06110D;
  --panel:#0B1F18;
  --line:#2A4A3D;
  --lime:#C8FF4D;
  --amber:#F2B84B;
  --text:#E9F5EF;
  --text-2:#9DB5AA;
  --text-3:#5E8574;
  --grad-a:#123A2D;
  --paper:#FFFFFF;

  --font-display:"Noto Sans SC","Source Han 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","SF Mono",ui-monospace,"Cascadia Mono","Roboto Mono",Menlo,Consolas,monospace;

  --shell:1440px;
  --gutter:clamp(20px,4vw,72px);
  --rail-h:30px;
  --bar-h:68px;
  --read:0;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,dl,dd,dt,figure,blockquote,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
hr{border:0}
main{display:block}

body{
  background-color:var(--ink);
  background-image:radial-gradient(120ch 70ch at 88% -12%,rgba(18,58,45,.55),rgba(6,17,13,0) 72%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  min-height:100vh;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.06;
  letter-spacing:-.02em;
  color:var(--text);
}
h1{font-size:clamp(2.25rem,5.4vw,4.5rem)}
h2{font-size:clamp(1.55rem,3vw,2.5rem)}
h3{font-size:clamp(1.1rem,1.8vw,1.45rem);line-height:1.2}
h4{font-size:1.05rem;line-height:1.3;letter-spacing:0}

:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
::selection{background:var(--lime);color:#06110D}

.mono{font-family:var(--font-mono);font-weight:600;font-feature-settings:"tnum" 1,"lnum" 1;letter-spacing:.08em}

.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.container-narrow{width:100%;max-width:920px;margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(44px,7vw,104px)}
.rule{height:1px;width:100%;background:var(--line)}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.22em;text-transform:uppercase;color:var(--text-3);
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--lime);flex:none}

.v-note{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.24em;text-transform:uppercase;color:var(--text-3);
  display:inline-block;
}

/* ---------- buttons & tags ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 22px;border:1px solid transparent;
  font-family:var(--font-body);font-size:14px;font-weight:700;line-height:1;letter-spacing:.02em;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.btn-primary{background:var(--lime);border-color:var(--lime);color:#06110D}
.btn-primary:hover{background:#DAFF7E;border-color:#DAFF7E;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-sm{padding:10px 15px;font-family:var(--font-mono);font-size:11.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase}

.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 9px;border:1px solid var(--line);
  font-family:var(--font-mono);font-size:10.5px;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);
}
.tag-live{background:var(--lime);border-color:var(--lime);color:#06110D;font-weight:600}
.tag-live::before{content:"";width:4px;height:4px;background:#06110D}
.tag-history{background:var(--amber);border-color:var(--amber);color:#06110D;font-weight:600}
.tag-history::before{content:"";width:4px;height:4px;background:#06110D}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:999;
  padding:12px 18px;background:var(--lime);color:#06110D;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  transform:translateY(-180%);
  transition:transform .25s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background-color:var(--ink);
  background-image:linear-gradient(180deg,rgba(18,58,45,.5),rgba(6,17,13,0) 70%);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}

.header-rail{
  display:flex;align-items:center;gap:12px;
  height:var(--rail-h);
  padding-inline:max(var(--gutter),calc((100% - var(--shell)) / 2 + var(--gutter)));
  border-bottom:1px solid rgba(42,74,61,.55);
  font-family:var(--font-mono);font-size:10.5px;font-weight:400;
  letter-spacing:.18em;text-transform:uppercase;color:var(--text-3);
}
.rail-mark{width:7px;height:7px;background:var(--lime);flex:none;box-shadow:0 0 12px rgba(200,255,77,.65)}
.rail-text{flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.rail-clock{display:inline-flex;align-items:center;gap:7px;color:var(--lime);letter-spacing:.2em}
.rail-dot{width:5px;height:5px;background:var(--amber);animation:railPulse 2.4s ease-in-out infinite}
@keyframes railPulse{0%,100%{opacity:1}50%{opacity:.25}}

.header-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  width:100%;max-width:var(--shell);margin-inline:auto;
  min-height:var(--bar-h);
  padding:12px var(--gutter);
}

.brand{display:inline-flex;align-items:center;gap:12px;flex:none;min-height:44px}
.brand-glyph{
  position:relative;width:34px;height:34px;flex:none;
  border:1px solid var(--line);overflow:hidden;background:rgba(11,31,24,.7);
}
.brand-glyph span{
  position:absolute;inset:0;
  background:linear-gradient(135deg,var(--lime) 0 44%,rgba(200,255,77,0) 44% 100%);
  transform-origin:0 0;
  transition:transform .45s var(--ease);
}
.brand:hover .brand-glyph span,.brand:focus-visible .brand-glyph span{transform:translate(4px,4px)}
.brand-type{display:grid;gap:4px}
.brand-name{
  font-family:var(--font-display);font-weight:900;font-size:20px;
  line-height:1;letter-spacing:-.01em;color:var(--text);
  transition:color .25s var(--ease);
}
.brand:hover .brand-name{color:var(--lime)}
.brand-note{font-size:9.5px;font-weight:400;letter-spacing:.24em;color:var(--text-3);line-height:1}

.site-nav{display:flex;align-items:center;gap:20px;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-item{flex:none}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:7px;
  padding:9px 10px 11px;
  font-size:14.5px;font-weight:500;line-height:1;color:var(--text-2);
  transition:color .25s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:4px;height:1px;
  background:var(--lime);transform:scaleX(0);transform-origin:left center;
  transition:transform .35s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--text)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-index{font-size:9.5px;font-weight:400;letter-spacing:.1em;color:var(--text-3);transition:color .25s var(--ease)}
.nav-label{white-space:nowrap}
.nav-link[aria-current="page"]{color:var(--lime)}
.nav-link[aria-current="page"] .nav-index{color:var(--lime)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-cta{flex:none;margin-left:8px}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:10px 14px;border:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.18em;text-transform:uppercase;color:var(--text);
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle-bars{display:grid;gap:5px;width:16px}
.nav-toggle-bars span{display:block;height:1px;background:var(--lime);transition:transform .3s var(--ease)}
.site-header[data-open] .nav-toggle-bars span:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars span:last-child{transform:translateY(-3px) rotate(-45deg)}

.scroll-meter{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(42,74,61,.45);pointer-events:none;
}
.scroll-meter-fill{
  display:block;width:100%;height:100%;
  background:linear-gradient(90deg,var(--lime),var(--amber));
  transform:scaleX(var(--read,0));transform-origin:0 50%;
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background-color:var(--panel);
  background-image:linear-gradient(180deg,rgba(18,58,45,.55),rgba(11,31,24,0) 60%);
  border-top:1px solid var(--line);
  color:var(--text);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:clamp(56px,12vw,120px);height:3px;
  background:var(--lime);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr .9fr 1.25fr;
  gap:32px 40px;
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:clamp(36px,6vw,64px) var(--gutter) clamp(28px,4vw,44px);
}
.footer-brand{display:grid;gap:12px;align-content:start}
.footer-wordmark{
  font-family:var(--font-display);font-weight:900;font-size:clamp(24px,3vw,30px);
  line-height:1;letter-spacing:-.02em;color:var(--text);
}
.footer-tag{font-size:10px;font-weight:400;letter-spacing:.26em;color:var(--text-3)}
.footer-blurb{max-width:30ch;font-size:14px;line-height:1.7;color:var(--text-2)}
.to-top{
  justify-self:start;
  margin-top:6px;padding:10px 15px;border:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.16em;text-transform:uppercase;color:var(--text-2);
  transition:border-color .25s var(--ease),color .25s var(--ease),background-color .25s var(--ease);
}
.to-top:hover{border-color:var(--lime);color:var(--lime)}
.to-top--float{
  position:fixed;right:clamp(16px,3vw,40px);bottom:clamp(16px,3vw,40px);z-index:130;
  background:var(--ink);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s,border-color .25s var(--ease),color .25s var(--ease);
}
.to-top--float.is-visible{opacity:1;visibility:visible;transform:none}

.footer-col{display:grid;gap:16px;align-content:start}
.footer-heading{
  font-size:10.5px;font-weight:400;letter-spacing:.24em;text-transform:uppercase;
  color:var(--text-3);padding-bottom:10px;border-bottom:1px solid rgba(42,74,61,.7);
}
.footer-list{display:grid;gap:11px}
.footer-list a{
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color .25s var(--ease);
}
.footer-list a:hover,.footer-list a:focus-visible{color:var(--lime)}
.contact-list{display:grid;gap:12px}
.contact-row{display:grid;grid-template-columns:44px minmax(0,1fr);gap:10px;align-items:start}
.contact-row dt{font-size:10.5px;font-weight:400;letter-spacing:.14em;color:var(--text-3);padding-top:2px}
.contact-row dd{font-size:14px;line-height:1.6;color:var(--text-2);word-break:break-word}
.footer-link{
  justify-self:start;margin-top:4px;
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;color:var(--lime);
  border-bottom:1px solid rgba(200,255,77,.35);padding-bottom:3px;
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.footer-link:hover{border-color:var(--lime)}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:18px var(--gutter) 26px;
  border-top:1px solid rgba(42,74,61,.7);
}
.footer-copy,.footer-note{font-size:10.5px;font-weight:400;letter-spacing:.14em;color:var(--text-3)}

/* ---------- chapter system ---------- */
.chapter{
  display:grid;grid-template-columns:auto minmax(0,1fr);
  gap:clamp(16px,3vw,40px);align-items:start;
  padding-block:clamp(36px,6vw,84px);
  border-top:1px solid var(--line);
}
.chapter-num{
  font-family:var(--font-mono);font-weight:600;
  font-size:clamp(2.4rem,6vw,5rem);line-height:.82;
  color:var(--text-3);letter-spacing:-.04em;
  transition:color .4s var(--ease);
}
.chapter-num--live{color:var(--lime)}
.chapter-num--past{color:var(--amber)}
.chapter-body{display:grid;gap:14px;max-width:68ch}
.chapter-title{font-size:clamp(1.3rem,2.4vw,2rem)}
.chapter-note{font-family:var(--font-mono);font-size:11px;font-weight:400;letter-spacing:.18em;text-transform:uppercase;color:var(--text-3)}

/* ---------- grids ---------- */
.layout-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-9{grid-column:span 9}
.span-12{grid-column:span 12}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}

.side-axis{position:sticky;top:calc(var(--rail-h) + var(--bar-h) + 24px);display:grid;gap:2px;align-content:start}
.axis-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 2px;border-bottom:1px solid rgba(42,74,61,.6);
  font-size:13.5px;font-weight:500;color:var(--text-2);
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.axis-link:hover{color:var(--text);border-color:var(--lime)}
.axis-link[aria-current="true"]{color:var(--lime);border-color:var(--lime)}

/* ---------- card ---------- */
.card{
  display:grid;gap:14px;align-content:start;
  padding:clamp(18px,2.4vw,26px);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .3s var(--ease),border-color .3s var(--ease),background-color .3s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(200,255,77,.55);background:#0D241C}
.card-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 14px}
.card-title{font-family:var(--font-display);font-weight:900;font-size:clamp(1.05rem,1.8vw,1.35rem);line-height:1.25;letter-spacing:-.01em}
.card-meta{font-family:var(--font-mono);font-size:10.5px;font-weight:400;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.card-body{font-size:15px;line-height:1.7;color:var(--text-2)}

/* ---------- media ---------- */
.media-frame{
  position:relative;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);
}
.media-frame::before{
  content:"";position:absolute;top:0;left:0;z-index:2;
  width:44%;height:2px;background:var(--lime);
}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:
    linear-gradient(180deg,rgba(6,17,13,0) 42%,rgba(6,17,13,.86) 100%),
    radial-gradient(58% 58% at 82% 8%,rgba(200,255,77,.18),rgba(6,17,13,0) 72%);
}
.media-frame img{
  display:block;width:100%;height:100%;object-fit:cover;
  filter:saturate(.72) contrast(1.04) brightness(.88);
}
.ratio-wide{aspect-ratio:16/9}
.ratio-tall{aspect-ratio:4/5}
.ratio-square{aspect-ratio:1/1}
.media-cap{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:12px 14px;
  font-family:var(--font-mono);font-size:10.5px;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);
}

/* ---------- breadcrumb & prose ---------- */
.breadcrumb{
  font-family:var(--font-mono);font-size:10.5px;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:9px}
.breadcrumb li{display:inline-flex;align-items:center;gap:9px}
.breadcrumb li + li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--text-2);transition:color .25s var(--ease)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb [aria-current="page"]{color:var(--text)}

.prose{max-width:68ch;font-size:16.5px;line-height:1.8;color:var(--text-2)}
.prose > * + *{margin-top:1.15em}
.prose h2,.prose h3{color:var(--text);margin-top:1.9em}
.prose h2{font-size:clamp(1.35rem,2.4vw,1.9rem)}
.prose h3{font-size:1.15rem}
.prose strong{color:var(--text);font-weight:700}
.prose a{color:var(--lime);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.prose ul,.prose ol{display:grid;gap:.55em}
.prose li{position:relative;padding-left:20px}
.prose li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:8px;height:1px;background:var(--lime);
}
.prose blockquote{
  border-left:2px solid var(--amber);padding:6px 0 6px 18px;
  color:var(--text);font-size:1.02em;
}

/* ---------- motion ---------- */
html.js [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
  transition-delay:var(--d,0ms);
}
html.js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .site-nav{gap:12px}
  .nav-list{gap:2px}
  .nav-link{font-size:13.5px;gap:6px;padding:9px 8px 11px}
  .nav-link::after{left:8px;right:8px}
  .nav-index{font-size:9px}
  .nav-cta{margin-left:4px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px 32px}
  .footer-contact{grid-column:span 3}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:1024px){
  .v-note{display:none}
}

@media (max-width:900px){
  :root{--rail-h:26px;--bar-h:60px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:grid;gap:0;justify-items:stretch;
    margin-left:0;padding:10px var(--gutter) 22px;
    background:var(--panel);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px rgba(0,0,0,.45);
    max-height:calc(100vh - var(--rail-h) - var(--bar-h) - 12px);
    overflow-y:auto;
    visibility:hidden;opacity:0;transform:translateY(-10px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  }
  .site-header[data-open] .site-nav{visibility:visible;opacity:1;transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{width:100%}
  .nav-link{
    width:100%;justify-content:flex-start;
    padding:15px 0;border-bottom:1px solid rgba(42,74,61,.55);
    font-size:16.5px;font-weight:500;
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{box-shadow:inset 2px 0 0 var(--lime);padding-left:12px}
  .nav-index{min-width:22px;font-size:10px;color:var(--text-3)}
  .nav-cta{width:100%;margin:18px 0 0;padding:14px 18px;font-size:12px}
  .header-rail{font-size:9.5px;letter-spacing:.16em}
  .rail-text{display:none}
  .rail-clock{margin-left:auto}

  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 24px}
  .footer-brand{grid-column:span 2}
  .footer-contact{grid-column:span 2}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .layout-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .span-4,.span-5,.span-6,.span-7,.span-8,.span-9,.span-12{grid-column:span 1}
  .side-axis{position:static;display:flex;gap:0;overflow-x:auto;padding-bottom:2px}
  .axis-link{flex:none;border-bottom:0;border-top:1px solid rgba(42,74,61,.6);padding:9px 14px;white-space:nowrap}
  .axis-link[aria-current="true"]{border-top-color:var(--lime);background:rgba(200,255,77,.06)}
  .chapter{grid-template-columns:minmax(0,1fr);gap:10px}
  .chapter-num{font-size:clamp(2.2rem,11vw,3.4rem)}
}

@media (max-width:600px){
  body{font-size:15.5px}
  .brand-note{display:none}
  .brand-name{font-size:18px}
  .brand-glyph{width:30px;height:30px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-brand,.footer-contact{grid-column:span 1}
  .contact-row{grid-template-columns:minmax(0,1fr);gap:2px}
  .footer-base{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{width:100%}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  html.js [data-reveal]{opacity:1;transform:none}
  .card:hover{transform:none}
  .brand:hover .brand-glyph span{transform:none}
}