/* ===== 01 · RESET & TOKENS ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
button{font:inherit;color:inherit}
img,svg{max-width:100%}

:root{
  --ink:#0B0F0E;
  --ink-deep:#070C0B;
  --green:#0F2A22;
  --teal:#103A3A;
  --indigo:#2A2450;
  --wine:#5A1F2E;
  --steel:#8FA6B8;
  --paper:#F2EFE6;
  --lime:#C8FF3D;
  --lime-soft:#D8FF6B;
  --orange:#FF7A1A;
  --text:#B8C2BD;
  --line:rgba(143,166,184,.26);
  --line-strong:rgba(143,166,184,.45);
  --shell:1200px;
  --rail:280px;
  --radius:4px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-cond:"Oswald","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}

body{
  min-height:100vh;
  background:
    radial-gradient(90% 55% at 12% -10%, rgba(200,255,61,.07), transparent 62%),
    radial-gradient(75% 50% at 96% 2%, rgba(42,36,80,.6), transparent 68%),
    var(--ink);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ===== 02 · TYPOGRAPHY ===== */
h1,h2,h3,h4,h5{color:var(--paper);font-family:var(--font-cond);font-weight:800;line-height:1.12;letter-spacing:.01em}
h1{font-size:clamp(2.6rem,6vw,5.4rem);line-height:1.02;letter-spacing:-.01em}
h2{font-size:clamp(1.8rem,3.2vw,3rem)}
h3{font-size:1.32rem;font-weight:700;letter-spacing:.02em}
h4{font-size:1.06rem;font-weight:700}
p{max-width:70ch}
a{color:inherit;text-decoration:none;transition:color .18s ease}
strong{color:var(--paper);font-weight:700}
::selection{background:var(--lime);color:#08120C}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:2px}
#main-content:focus{outline:none}
.skip-link{
  position:fixed;left:16px;top:-120px;z-index:300;
  background:var(--lime);color:#08120C;font-weight:700;font-size:.9rem;
  padding:.7rem 1.15rem;border-radius:2px;transition:top .18s ease;
}
.skip-link:focus{top:14px}

.mono{font-family:var(--font-mono);letter-spacing:.12em}
.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--font-mono);font-size:.72rem;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;color:var(--lime);
}

/* ===== 03 · LAYOUT CONTAINERS ===== */
.shell{width:min(100% - 2.5rem,var(--shell));margin-inline:auto}
.prose{max-width:68ch;font-size:1.04rem;line-height:1.8}
.prose p+p{margin-top:1.05em}
.prose a{color:var(--lime);border-bottom:1px solid rgba(200,255,61,.42)}
.prose a:hover{border-bottom-color:var(--lime)}
.grid{display:grid;gap:clamp(1rem,2vw,1.5rem);grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* ===== 04 · BUTTONS & LINKS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-family:var(--font-cond);font-weight:600;font-size:.9rem;letter-spacing:.07em;
  padding:.62rem 1.15rem;border:1px solid transparent;border-radius:2px;
  cursor:pointer;line-height:1.2;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--lime{background:var(--lime);color:#08120C}
.btn--lime:hover{background:var(--lime-soft);transform:translateY(-1px)}
.btn--ghost{border-color:var(--line-strong);color:var(--paper);background:transparent}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}
.link-quiet{
  font-size:.82rem;letter-spacing:.08em;color:var(--steel);
  padding-bottom:2px;border-bottom:1px solid transparent;
}
.link-quiet:hover{color:var(--paper);border-bottom-color:var(--lime)}

/* ===== 05 · CHIPS / NUMBERS / CRUMBS ===== */
.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  font-family:var(--font-mono);font-size:.68rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;
  padding:.26rem .55rem;border:1px solid var(--line-strong);border-radius:2px;color:var(--steel);
}
.tag--lime{background:var(--lime);border-color:var(--lime);color:#08120C}
.tag--orange{border-color:rgba(255,122,26,.55);color:var(--orange)}
.num{font-family:var(--font-mono);font-weight:600;letter-spacing:-.02em;color:var(--paper)}
.num--xl{display:block;font-size:clamp(2.5rem,5vw,4rem);line-height:1;letter-spacing:-.03em}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;
  padding:1.1rem 0;font-family:var(--font-mono);font-size:.7rem;
  letter-spacing:.1em;color:var(--steel);
}
.crumbs a:hover{color:var(--lime)}
.crumbs__sep{color:rgba(143,166,184,.5)}
.crumbs [aria-current="page"]{color:var(--paper)}

/* ===== 06 · CARDS / PANELS ===== */
.card{
  position:relative;background:var(--green);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:1.25rem;color:var(--text);
}
.card--paper{background:var(--paper);color:#1B2320;border-color:rgba(11,15,14,.14)}
.card--paper h2,.card--paper h3,.card--paper h4{color:#0B0F0E}
.panel{
  background:linear-gradient(158deg,var(--teal),var(--green) 62%,rgba(42,36,80,.55));
  border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;
}

/* ===== 07 · MEDIA PLACEHOLDERS ===== */
.media{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--green)}
.media__frame{
  position:relative;display:block;aspect-ratio:16/10;overflow:hidden;
  background:
    radial-gradient(120% 90% at 14% 0%, rgba(200,255,61,.22), transparent 56%),
    repeating-linear-gradient(115deg, rgba(143,166,184,.16) 0 1px, transparent 1px 28px),
    linear-gradient(152deg, var(--teal), var(--ink) 72%);
}
.media__frame img{width:100%;height:100%;object-fit:cover;display:block}
.media__caption{
  padding:.6rem .85rem;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;color:var(--steel);
}
.media--wide .media__frame{aspect-ratio:21/9}
.media--tall .media__frame{aspect-ratio:4/5}

/* ===== 08 · ACCORDION ===== */
.acc{display:grid;gap:.6rem}
.acc__item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(15,42,34,.55);overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.acc__item[data-open]{border-color:rgba(200,255,61,.45);background:rgba(15,42,34,.85)}
.acc__trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  text-align:left;background:transparent;border:0;cursor:pointer;
  color:var(--paper);font-size:1rem;font-weight:500;line-height:1.5;
  padding:1rem 1.1rem;transition:color .18s ease;
}
.acc__trigger:hover{color:var(--lime)}
.acc__icon{position:relative;flex:none;width:14px;height:14px}
.acc__icon::before,.acc__icon::after{content:"";position:absolute;background:var(--lime)}
.acc__icon::before{left:0;right:0;top:6px;height:2px}
.acc__icon::after{top:0;bottom:0;left:6px;width:2px;transition:transform .22s ease}
.acc__item[data-open] .acc__icon::after{transform:scaleY(0)}
.acc__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease}
.acc__item[data-open] .acc__panel{grid-template-rows:1fr}
.acc__panel-inner{overflow:hidden;padding:0 1.1rem;transition:padding .22s ease}
.acc__item[data-open] .acc__panel-inner{padding-bottom:1.05rem}
.acc__panel-inner p{font-size:.95rem;color:var(--text)}

/* ===== 09 · FILTER ===== */
.filter{display:flex;flex-wrap:wrap;gap:.45rem}
.filter__btn{
  font-family:var(--font-mono);font-size:.72rem;font-weight:600;
  letter-spacing:.1em;padding:.45rem .85rem;
  border:1px solid var(--line-strong);border-radius:999px;
  background:transparent;color:var(--text);cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.filter__btn:hover{border-color:var(--lime);color:var(--lime)}
.filter__btn[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);color:#08120C}
[data-filter-item][hidden]{display:none}

/* ===== 10 · REVEAL ===== */
.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ===== 11 · HEADER ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--ink);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.9);
}
.masthead{position:relative}
.masthead__inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:1rem;
  padding:.95rem 0 .8rem;
}
.masthead__meta{
  display:flex;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:.7rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--steel);
}
.masthead__dot{
  width:6px;height:6px;flex:none;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 3px rgba(255,122,26,.18);
}
.brand{display:inline-flex;align-items:center;gap:.7rem;justify-self:center;color:var(--paper)}
.brand__mark{
  display:grid;place-items:center;width:38px;height:38px;flex:none;
  border:1px solid var(--lime);color:var(--lime);
  font-family:var(--font-cond);font-weight:700;font-size:1.02rem;
  transform:skewX(-8deg);transition:background .18s ease,color .18s ease;
}
.brand:hover .brand__mark{background:var(--lime);color:#08120C}
.brand__text{display:grid;line-height:1.08}
.brand__name{font-family:var(--font-cond);font-weight:800;font-size:1.5rem;letter-spacing:.16em}
.brand__sub{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.2em;color:var(--steel);margin-top:.15rem}
.masthead__actions{display:flex;align-items:center;gap:1rem;justify-self:end}
.nav-toggle{
  display:none;align-items:center;gap:.55rem;justify-self:end;
  background:transparent;border:1px solid var(--line-strong);border-radius:2px;
  color:var(--paper);padding:.48rem .7rem;cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bar{display:block;height:2px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.nav-toggle__label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase}
.nav-toggle[aria-expanded="true"]{border-color:var(--lime);color:var(--lime)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(6px) 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(-6px) rotate(-45deg)}
.progress{height:2px;background:rgba(143,166,184,.14);overflow:hidden}
.progress__bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--lime),var(--orange));
  transform:scaleX(var(--p,0));transform-origin:0 50%;
}
.site-nav{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(15,42,34,.6),rgba(11,15,14,.98));
}
.site-nav__inner{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.site-nav__list{display:flex;flex-wrap:wrap;gap:.1rem}
.site-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:.42rem;
  padding:.82rem .9rem;font-size:.86rem;letter-spacing:.05em;color:var(--text);
}
.site-nav__num{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.06em;color:var(--steel)}
.site-nav__link::after{
  content:"";position:absolute;left:.9rem;right:.9rem;bottom:.42rem;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .18s ease;
}
.site-nav__link:hover{color:var(--paper)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--lime)}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--orange)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__note{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.18em;
  color:var(--steel);white-space:nowrap;
}
.site-nav__cta{display:none}

/* ===== 12 · FOOTER ===== */
.site-footer{
  position:relative;margin-top:clamp(3rem,7vw,5.5rem);
  padding:clamp(2.5rem,5vw,4rem) 0 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--ink),#0A1613 45%,var(--ink-deep));
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--lime) 0 16%,var(--orange) 16% 24%,rgba(143,166,184,.35) 24% 100%);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr .9fr 1.1fr 1.2fr;
  gap:clamp(1.5rem,4vw,3rem);
}
.footer-brand__desc{max-width:36ch;margin-top:1rem;font-size:.92rem;color:var(--text)}
.footer-brand__ver{
  margin-top:1rem;font-family:var(--font-mono);font-size:.66rem;
  letter-spacing:.18em;color:var(--steel);
}
.brand--footer{justify-self:start}
.footer-col__title{
  font-family:var(--font-mono);font-size:.66rem;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;color:var(--lime);
  margin-bottom:.95rem;padding-bottom:.5rem;border-bottom:1px solid var(--line);
}
.footer-list{display:grid;gap:.55rem;font-size:.9rem;line-height:1.55}
.footer-list a{display:inline-block;color:var(--text)}
.footer-list a::after{
  content:"";display:block;height:1px;width:0;background:var(--lime);
  transition:width .18s ease;margin-top:1px;
}
.footer-list a:hover{color:var(--lime)}
.footer-list a:hover::after{width:100%}
.footer-strong{
  font-family:var(--font-mono);font-size:.8rem;letter-spacing:.01em;
  color:var(--paper);word-break:break-word;
}
.footer-note{display:block;font-size:.78rem;line-height:1.7;color:var(--steel)}
.footer-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.75rem 1.5rem;margin-top:clamp(2rem,4vw,3rem);
  padding:1.1rem 0 1.5rem;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;color:var(--steel);
}
.footer-bar__links{display:flex;flex-wrap:wrap;gap:1.1rem}
.footer-bar__links a:hover{color:var(--lime)}
.footer-bar__icp{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.06em;color:var(--steel)}

/* ===== 13 · RESPONSIVE ===== */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  html{scroll-padding-top:96px}
  .masthead__inner{grid-template-columns:1fr auto;gap:.75rem;padding:.85rem 0}
  .masthead__meta{display:none}
  .masthead__actions{display:none}
  .brand{justify-self:start}
  .brand__name{font-size:1.3rem;letter-spacing:.12em}
  .brand__sub{font-size:.55rem}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none}
  .site-nav[data-open]{display:block;max-height:calc(100vh - 96px);overflow-y:auto}
  .site-nav__inner{flex-direction:column;align-items:stretch;padding:.35rem 0 1.1rem}
  .site-nav__list{flex-direction:column;gap:0}
  .site-nav__link{
    width:100%;padding:.9rem .1rem;font-size:1rem;
    border-bottom:1px solid rgba(143,166,184,.14);
  }
  .site-nav__link::after{left:.1rem;right:auto;width:20px;bottom:.65rem}
  .site-nav__note{display:none}
  .site-nav__cta{display:inline-flex;align-self:flex-start;margin-top:1rem}
  body.nav-open{overflow:hidden}
  .footer-bar{flex-direction:column;align-items:flex-start}
}
@media (max-width:620px){
  body{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .card,.panel{padding:1.05rem}
  .acc__trigger{font-size:.95rem;padding:.9rem 1rem}
  .footer-bar__links{gap:.9rem}
}

/* ===== 14 · REDUCED MOTION ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .js [data-reveal]{opacity:1;transform:none}
}