:root{
  --ink:#061A14;
  --ink-2:#0B2A21;
  --ink-3:#04120D;
  --line:#1F4A3A;
  --line-soft:rgba(31,74,58,.55);
  --lime:#C6FF3D;
  --lime-deep:#8FD11F;
  --amber:#FFB347;
  --amber-deep:#D9821B;
  --rose:#FF4D7A;
  --text:#F2F7F3;
  --muted:#9DB8AA;
  --white:#FFFFFF;
  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","IBM Plex Mono",SFMono-Regular,Menlo,Consolas,"Noto Sans SC",monospace;
  --shell-max:1280px;
  --shell-pad:clamp(18px,4vw,44px);
  --ease:cubic-bezier(.22,.61,.36,1);
  --cut-corner:14px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 520px at 80% -10%,rgba(198,255,61,.10),transparent 70%),
    radial-gradient(720px 440px at 4% 2%,rgba(255,179,71,.07),transparent 72%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-display);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,pre{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,video{display:block;max-width:100%;height:auto}
table{border-collapse:collapse;width:100%}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.1;letter-spacing:-.02em;text-wrap:balance}
strong{font-weight:800;color:var(--white)}

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

.skip-link{
  position:fixed;top:12px;left:12px;z-index:300;
  display:inline-block;
  padding:10px 18px;
  background:var(--lime);
  color:var(--ink);
  font-weight:800;font-size:14px;letter-spacing:.04em;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  transform:translateY(-220%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- header ---------- */
.site-header{
  position:relative;
  z-index:70;
  background:rgba(6,26,20,.94);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:repeating-linear-gradient(90deg,var(--lime) 0 26px,transparent 26px 52px);
  opacity:.32;pointer-events:none;
}

.command-strip{
  display:flex;align-items:center;gap:clamp(12px,2vw,26px);
  min-height:38px;
  padding:0 var(--shell-pad);
  background:linear-gradient(90deg,var(--ink-3),rgba(11,42,33,.92) 46%,var(--ink-3));
  border-bottom:1px solid var(--line-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  overflow:hidden;
}
.command-strip__tag{
  display:inline-flex;align-items:center;gap:8px;
  flex:none;
  color:var(--lime);font-weight:600;white-space:nowrap;
}
.command-strip__pulse{
  width:7px;height:7px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 0 rgba(198,255,61,.55);
  animation:ab-pulse 2.6s var(--ease) infinite;
}
@keyframes ab-pulse{
  0%{box-shadow:0 0 0 0 rgba(198,255,61,.55)}
  70%{box-shadow:0 0 0 9px rgba(198,255,61,0)}
  100%{box-shadow:0 0 0 0 rgba(198,255,61,0)}
}
.scoreboard{
  display:flex;flex:1;min-width:0;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 3%,#000 94%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 3%,#000 94%,transparent);
}
.scoreboard__track{
  display:flex;align-items:center;gap:28px;
  flex:none;
  padding-right:28px;
  animation:ab-marquee 36s linear infinite;
}
.scoreboard:hover .scoreboard__track,
.scoreboard:focus-within .scoreboard__track{animation-play-state:paused}
.scoreboard__item{display:inline-flex;align-items:baseline;gap:7px;white-space:nowrap}
.scoreboard__key{color:var(--muted);letter-spacing:.18em}
.scoreboard__num{
  font-family:var(--font-mono);font-weight:600;
  font-size:13px;letter-spacing:.02em;color:var(--white);text-transform:none;
}
.scoreboard__item:nth-child(2n) .scoreboard__num{color:var(--amber)}
.scoreboard__item:nth-child(3n) .scoreboard__num{color:var(--lime)}
.scoreboard__unit{color:var(--muted);letter-spacing:.1em}
@keyframes ab-marquee{
  from{transform:translateX(0)}
  to{transform:translateX(-100%)}
}

.masthead{
  display:flex;align-items:center;flex-wrap:nowrap;
  gap:clamp(10px,1.6vw,24px);
  width:min(var(--shell-max),calc(100% - 2 * var(--shell-pad)));
  margin-inline:auto;
  padding:15px 0 17px;
}

.brand{display:inline-flex;align-items:center;gap:12px;flex:none}
.brand__mark{
  position:relative;
  width:34px;height:34px;flex:none;
  background:var(--lime);
  clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%);
}
.brand__mark::after{
  content:"";position:absolute;right:7px;bottom:7px;
  width:9px;height:9px;background:var(--ink);
  clip-path:polygon(100% 0,100% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__name{
  font-family:var(--font-display);font-weight:900;
  font-size:18px;letter-spacing:-.01em;color:var(--text);
}
.brand__sub{
  margin-top:5px;
  font-family:var(--font-mono);font-size:10px;font-weight:500;
  letter-spacing:.24em;text-transform:uppercase;color:var(--muted);
}
.version-tag{
  flex:none;
  padding:4px 10px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.1em;color:var(--amber);
  background:rgba(255,179,71,.08);
  border:1px solid rgba(255,179,71,.42);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);
  white-space:nowrap;
}

.primary-nav{margin-left:auto;min-width:0}
.primary-nav__list{display:flex;align-items:center;gap:clamp(0px,.6vw,8px)}
.primary-nav__link{
  position:relative;display:inline-block;
  padding:8px 10px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:color .18s var(--ease);
  white-space:nowrap;
}
.primary-nav__link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:1px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.primary-nav__link:hover{color:var(--text)}
.primary-nav__link:hover::after{transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:var(--lime);font-weight:700}
.primary-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.primary-nav__note{display:none}

.action-link{
  flex:none;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;
  background:var(--lime);color:var(--ink);
  font-size:14px;font-weight:800;letter-spacing:.02em;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.action-link::after{content:"\2197";font-family:var(--font-mono);font-size:13px;line-height:1}
.action-link:hover{background:var(--amber);transform:translateY(-1px)}
.action-link:focus-visible{outline:none;box-shadow:inset 0 0 0 3px var(--ink)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  flex:none;
  padding:9px 12px;
  border:1px solid var(--line);
  color:var(--text);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__label{text-transform:uppercase}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:3px;width:18px}
.nav-toggle__bars span{
  display:block;height:2px;width:100%;
  background:var(--lime);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.site-header[data-open] .nav-toggle{border-color:var(--lime);color:var(--lime)}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  background:linear-gradient(180deg,var(--ink),var(--ink-3));
  border-top:1px solid var(--line);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:140px;
  background:repeating-linear-gradient(100deg,rgba(198,255,61,.055) 0 2px,transparent 2px 28px);
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1.7fr) minmax(0,1fr);
  gap:clamp(24px,3.4vw,48px);
  width:min(var(--shell-max),calc(100% - 2 * var(--shell-pad)));
  margin-inline:auto;
  padding:clamp(34px,5vw,62px) 0 clamp(24px,3vw,38px);
}
.footer-brand__line{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(20px,2.2vw,26px);line-height:1.25;letter-spacing:-.01em;
  color:var(--text);
}
.footer-brand__tag{
  margin-top:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--lime);
}
.footer-status{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-status__item{
  padding:4px 9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.2vw,30px);
}
.footer-nav__title{
  margin-bottom:12px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--lime);
}
.footer-nav__link{
  display:inline-block;
  padding:5px 0;
  font-size:15px;color:var(--muted);
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer-nav__link:hover{color:var(--text);transform:translateX(3px)}
.footer-nav__link[aria-current="page"]{color:var(--lime)}
.footer-contact__row{
  display:flex;flex-direction:column;gap:3px;
  padding:8px 0;
  border-bottom:1px solid var(--line-soft);
}
.footer-contact__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted);
}
.footer-contact__value{
  font-size:15px;line-height:1.55;color:var(--text);
  overflow-wrap:anywhere;
}
.footer-contact__note{
  margin-top:12px;
  font-size:12px;line-height:1.7;color:var(--muted);
}
.footer-legal{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 26px;
  width:min(var(--shell-max),calc(100% - 2 * var(--shell-pad)));
  margin-inline:auto;
  padding:18px 0 26px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--muted);
}
.footer-legal__icp{color:var(--muted)}
.footer-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 20px}

/* ---------- shared layout ---------- */
.page-shell{
  width:min(var(--shell-max),calc(100% - 2 * var(--shell-pad)));
  margin-inline:auto;
}
.breadcrumb{
  padding-top:20px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--muted);
}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line)}
.breadcrumb__link{
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.breadcrumb__link:hover{color:var(--lime);border-bottom-color:var(--lime)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--lime);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--lime)}
.section-title{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(28px,3.4vw,40px);line-height:1.12;letter-spacing:-.02em;color:var(--text);
}
.lede{
  max-width:62ch;
  font-size:clamp(16px,1.4vw,18px);line-height:1.85;color:var(--muted);
}

.grid{display:grid;gap:clamp(18px,2.4vw,34px)}
.grid--split{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr)}
.grid--three{grid-template-columns:repeat(3,minmax(0,1fr))}

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  background:var(--ink-2);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.panel:focus-within{box-shadow:inset 0 0 0 2px var(--lime)}
.panel--tilt{transform:rotate(-1.1deg);transition:transform .25s var(--ease)}
.panel--tilt:hover{transform:rotate(0deg)}

.stat{display:flex;flex-direction:column;gap:4px}
.stat__num{
  font-family:var(--font-mono);font-weight:600;
  font-size:clamp(28px,3vw,40px);line-height:1;color:var(--lime);
}
.stat__label{font-size:13px;letter-spacing:.06em;color:var(--muted)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.tag--lime{
  color:var(--lime);border-color:rgba(198,255,61,.4);background:rgba(198,255,61,.08);
}
.tag--amber{
  color:var(--amber);border-color:rgba(255,179,71,.4);background:rgba(255,179,71,.08);
}
.tag--rose{
  color:var(--rose);border-color:rgba(255,77,122,.42);background:rgba(255,77,122,.1);
}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;
  font-size:15px;font-weight:800;letter-spacing:.02em;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn--solid{
  background:var(--lime);color:var(--ink);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
}
.btn--solid:hover{background:var(--amber)}
.btn--solid:focus-visible{outline:none;box-shadow:inset 0 0 0 3px var(--ink)}
.btn--ghost{
  color:var(--text);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}

.rule{
  height:1px;border:0;margin:clamp(22px,3.4vw,44px) 0;
  background:linear-gradient(90deg,var(--line),rgba(31,74,58,.1));
}
.note{font-size:13px;line-height:1.75;color:var(--muted)}
.num{font-family:var(--font-mono);font-weight:600;letter-spacing:.02em}

.stack{display:flex;flex-direction:column;gap:clamp(14px,2vw,22px)}
.stack--tight{display:flex;flex-direction:column;gap:10px}

.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--line);
  background:linear-gradient(140deg,#0F3A2C,var(--ink) 58%,#123A2A);
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(115deg,rgba(198,255,61,.07) 0 2px,transparent 2px 24px),
    radial-gradient(58% 78% at 78% 12%,rgba(255,179,71,.18),transparent 70%);
}
.media-frame__image{
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.05);
}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:10px 14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--text);
  background:linear-gradient(transparent,rgba(4,18,13,.88));
}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

.scroll-progress{
  position:fixed;top:0;left:0;right:0;z-index:200;
  height:3px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lime),var(--amber));
  pointer-events:none;
  will-change:transform;
}

html.is-nav-open{overflow:hidden}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .masthead{gap:10px}
  .primary-nav__link{padding:8px 7px;font-size:14px}
  .primary-nav__link::after{left:7px;right:7px}
  .version-tag{font-size:10px;padding:3px 7px}
  .action-link{padding:9px 13px;font-size:13px}
}

@media (max-width:980px){
  .grid--split{grid-template-columns:minmax(0,1fr)}
  .grid--three{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-nav{grid-column:1 / -1;order:3}
}

@media (max-width:960px){
  body{padding-bottom:calc(78px + env(safe-area-inset-bottom))}
  .command-strip{min-height:32px;font-size:10px;letter-spacing:.1em;gap:12px}
  .scoreboard__track{gap:20px;padding-right:20px;animation-duration:28s}
  .scoreboard__num{font-size:12px}

  .masthead{
    position:fixed;left:0;right:0;bottom:0;z-index:95;
    width:100%;margin:0;
    padding:10px var(--shell-pad) calc(10px + env(safe-area-inset-bottom));
    background:rgba(6,26,20,.97);
    border-top:1px solid var(--line);
    box-shadow:0 -20px 44px rgba(0,0,0,.55);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
  }
  .brand__mark{width:28px;height:28px}
  .brand__name{font-size:16px}
  .brand__sub{font-size:9px;letter-spacing:.18em;margin-top:4px}
  .version-tag{margin-left:auto;font-size:10px;padding:3px 7px}
  .nav-toggle{display:inline-flex}

  .primary-nav{
    position:fixed;inset:0;z-index:90;
    display:none;flex-direction:column;justify-content:center;
    margin:0;
    padding:calc(40px + env(safe-area-inset-top)) var(--shell-pad) calc(130px + env(safe-area-inset-bottom));
    background:linear-gradient(165deg,var(--ink-3),var(--ink) 58%,#0A2B21);
    overflow-y:auto;
  }
  .site-header[data-open] .primary-nav{display:flex}
  .primary-nav__list{
    flex-direction:column;align-items:stretch;gap:0;
    width:100%;max-width:520px;margin-inline:auto;
  }
  .primary-nav__list li + li{border-top:1px solid var(--line-soft)}
  .primary-nav__link{
    display:block;
    padding:16px 4px;
    font-size:clamp(24px,6.2vw,32px);font-weight:900;letter-spacing:-.01em;
    color:var(--text);
  }
  .primary-nav__link::after{left:4px;right:auto;width:30px;bottom:10px;height:3px}
  .primary-nav__link[aria-current="page"]{color:var(--lime)}
  .primary-nav__note{
    display:block;max-width:520px;margin:26px auto 0;
    font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--muted);
  }
  .action-link{display:none}

  .footer-grid{padding-top:clamp(30px,7vw,48px)}
  .footer-legal{padding-bottom:calc(26px + env(safe-area-inset-bottom))}
}

@media (max-width:640px){
  body{font-size:16px;line-height:1.8}
  .grid--three{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .panel--tilt{transform:none}
  .command-strip__tag{letter-spacing:.12em}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .scoreboard__track{animation:none}
  .reveal{opacity:1;transform:none}
}