/* ===== reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{background-color:#070B14;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input,select{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse}

/* ===== tokens ===== */
:root{
  --bg:#070B14;
  --panel:#0F1728;
  --grid:#1B2740;
  --orange:#FF6A1A;
  --purple:#A24BFF;
  --teal:#2BE3C6;
  --amber:#FFC94D;
  --text:#F2F5FA;
  --dim:#93A2BF;
  --info:#3A8DFF;

  --font-display:'Barlow Condensed','Oswald','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono',ui-monospace,'Menlo',monospace;
  --font-body:'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif;

  --radius-xs:4px;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-pill:999px;

  --shell:min(100% - 32px,1180px);
  --shadow-hard:0 22px 44px -26px rgba(0,0,0,.95);
}

/* ===== blueprint backdrop ===== */
body{
  position:relative;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(27,39,64,.5) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(27,39,64,.5) 1px,transparent 1px),
    radial-gradient(900px 520px at 10% -6%,rgba(162,75,255,.18),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(255,106,26,.13),transparent 66%),
    radial-gradient(900px 620px at 50% 112%,rgba(43,227,198,.07),transparent 70%);
  background-size:24px 24px,24px 24px,100% 100%,100% 100%,100% 100%;
}

/* ===== typography ===== */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.15;
  color:var(--text);
}
h1{font-size:clamp(38px,6vw,56px);font-weight:800}
h2{font-size:clamp(26px,4vw,40px)}
h3{font-size:clamp(20px,2.6vw,28px)}
h4{font-size:20px;font-weight:600}
p{color:var(--text)}
strong{color:var(--text);font-weight:600}
::selection{background:rgba(255,106,26,.35);color:#fff}

:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:2px;
  border-radius:4px;
}

/* ===== layout primitives ===== */
.container{width:var(--shell);margin-inline:auto}
.container-wide{width:min(100% - 32px,1440px);margin-inline:auto}
.section{padding-block:clamp(38px,6.5vw,84px)}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  gap:10px 22px;
  margin-bottom:clamp(20px,3vw,34px);
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(24px,3.6vw,38px);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.1;
}
.section-note{
  flex:1 1 220px;
  max-width:52ch;
  font-size:14.5px;
  color:var(--dim);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border:1px solid var(--grid);
  border-radius:var(--radius-pill);
  background:rgba(255,201,77,.06);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--amber);
}
.divider{height:1px;border:0;background:var(--grid);margin:clamp(20px,3vw,34px) 0}
.btn-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}

/* ===== grid ===== */
.grid{display:grid;gap:clamp(14px,2vw,22px)}
.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))}
.grid-asym{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr)}

/* ===== buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 18px;
  border:1px solid var(--grid);
  border-radius:var(--radius-pill);
  background:transparent;
  color:var(--text);
  font-size:14px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:border-color .16s ease,background-color .16s ease,color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-primary{
  background:var(--orange);
  border-color:var(--orange);
  color:#0A0F1A;
  font-weight:700;
  box-shadow:0 12px 26px -16px rgba(255,106,26,.95);
}
.btn-primary:hover{background:#FF7F38;border-color:#FF7F38;transform:translateY(-2px)}
.btn-ghost{
  background:rgba(162,75,255,.09);
  border-color:rgba(162,75,255,.34);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(162,75,255,.2);border-color:var(--purple)}
.btn-sm{padding:8px 14px;font-size:13px}

/* ===== panels & data ===== */
.panel{
  position:relative;
  padding:clamp(16px,2.2vw,24px);
  border:1px solid var(--grid);
  border-radius:var(--radius-md);
  background:var(--panel);
  box-shadow:var(--shadow-hard);
  transition:border-color .16s ease;
}
.panel::after{
  content:"";
  position:absolute;
  left:-1px;
  top:-1px;
  width:18px;
  height:18px;
  border-left:2px solid var(--orange);
  border-top:2px solid var(--orange);
  border-top-left-radius:var(--radius-md);
  opacity:.8;
  pointer-events:none;
}
.panel:hover{border-color:rgba(255,106,26,.42)}
.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px dashed var(--grid);
}
.panel-title{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--text);
}
.panel-body{font-size:15px;color:var(--dim)}

.stat-row{display:flex;flex-wrap:wrap;gap:clamp(14px,3vw,32px)}
.stat{display:flex;flex-direction:column;gap:6px;min-width:0}
.stat-value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:600;
  font-size:clamp(26px,4.4vw,42px);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--orange);
}
.stat-value--teal{color:var(--teal)}
.stat-value--purple{color:var(--purple)}
.stat-value--amber{color:var(--amber)}
.stat-label{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--dim);
}

.metric-row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:10px 0;
  border-bottom:1px dashed var(--grid);
  font-size:14.5px;
}
.metric-row:last-child{border-bottom:0}
.metric-key{color:var(--dim)}
.metric-val{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  color:var(--text);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border:1px solid var(--grid);
  border-radius:var(--radius-xs);
  background:rgba(27,39,64,.5);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--dim);
}
.tag-purple{color:#D9BCFF;border-color:rgba(162,75,255,.5);background:rgba(162,75,255,.14)}
.tag-teal{color:#9BF5E6;border-color:rgba(43,227,198,.45);background:rgba(43,227,198,.12)}
.tag-amber{color:#FFE2A0;border-color:rgba(255,201,77,.45);background:rgba(255,201,77,.12)}

.status-dot{
  display:inline-block;
  flex:none;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 3px rgba(43,227,198,.16),0 0 10px rgba(43,227,198,.75);
}
.status-dot--purple{background:var(--purple);box-shadow:0 0 0 3px rgba(162,75,255,.16),0 0 10px rgba(162,75,255,.75)}

/* ===== media ===== */
.media-figure{margin:0}
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 10;
  overflow:hidden;
  border:1px solid var(--grid);
  border-radius:var(--radius-md);
  background-color:var(--panel);
  background-image:
    linear-gradient(135deg,rgba(162,75,255,.18),transparent 55%),
    linear-gradient(315deg,rgba(255,106,26,.16),transparent 55%),
    repeating-linear-gradient(135deg,rgba(27,39,64,.85) 0 1px,transparent 1px 12px);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame--square{aspect-ratio:1 / 1}
.media-caption{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.02em;
  color:var(--dim);
}

/* ===== breadcrumbs ===== */
.breadcrumbs{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--dim)}
.crumb-list a{color:var(--dim)}
.crumb-list a:hover{color:var(--orange)}
.crumb-list [aria-current="page"]{color:var(--text)}
.crumb-sep{color:#2C3A58}

/* ===== prose ===== */
.prose{max-width:68ch;font-size:16px}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose p{margin-top:1em;color:var(--dim)}
.prose ul{margin-top:1em;display:grid;gap:8px}
.prose li{position:relative;padding-left:18px;color:var(--dim)}
.prose li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:8px;
  height:1px;
  background:var(--orange);
}

/* ===== side index ===== */
.side-index{
  position:sticky;
  top:96px;
  font-family:var(--font-mono);
  font-size:12.5px;
}
.side-index-title{
  margin-bottom:12px;
  font-size:11.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--dim);
}
.index-list{display:grid;gap:4px;border-left:1px solid var(--grid)}
.index-link{
  position:relative;
  display:block;
  padding:7px 10px 7px 14px;
  color:var(--dim);
  transition:color .16s ease,background-color .16s ease;
}
.index-link:hover{color:var(--text);background:rgba(162,75,255,.1)}
.index-link[aria-current]{color:var(--orange)}
.index-link[aria-current]::before{
  content:"";
  position:absolute;
  left:-1px;
  top:6px;
  bottom:6px;
  width:2px;
  border-radius:2px;
  background:var(--orange);
  box-shadow:0 0 10px rgba(255,106,26,.85);
}
[data-index-section]{scroll-margin-top:110px}

/* ===== reveal ===== */
[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .42s ease,transform .42s ease;
}
[data-reveal].is-visible{opacity:1;transform:none}
[data-reveal][data-reveal-delay="1"]{transition-delay:.06s}
[data-reveal][data-reveal-delay="2"]{transition-delay:.12s}
[data-reveal][data-reveal-delay="3"]{transition-delay:.18s}

/* ===== skip link ===== */
.skip-link{
  position:fixed;
  left:50%;
  top:-70px;
  z-index:200;
  transform:translateX(-50%);
  padding:10px 20px;
  border-radius:0 0 var(--radius-sm) var(--radius-sm);
  background:var(--orange);
  color:#0A0F1A;
  font-size:14px;
  font-weight:700;
  transition:top .18s ease;
}
.skip-link:focus{top:0}

/* ===== header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:12px clamp(12px,2.4vw,26px) 0;
}
.header-shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,20px);
  max-width:1400px;
  margin-inline:auto;
  padding:9px 12px 9px 16px;
  border:1px solid var(--grid);
  border-radius:var(--radius-pill);
  background:rgba(15,23,40,.9);
  box-shadow:var(--shadow-hard);
  backdrop-filter:blur(12px);
  transition:border-color .2s ease,background-color .2s ease;
}
.site-header[data-stuck="true"] .header-shell{
  border-color:rgba(255,106,26,.42);
  background:rgba(11,18,32,.96);
}
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:120;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--orange),var(--purple) 55%,var(--teal));
  pointer-events:none;
}

.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  border-radius:10px;
  color:#0A0F1A;
  background:linear-gradient(135deg,var(--orange),var(--purple));
  box-shadow:0 0 0 1px rgba(255,106,26,.5),0 10px 22px -14px rgba(255,106,26,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{
  font-family:var(--font-display);
  font-size:18px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--text);
}
.brand-line{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.12em;
  color:var(--dim);
}

.primary-nav{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.4vw,18px);
  margin-left:auto;
  min-width:0;
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:block;
  padding:9px 11px;
  border-radius:var(--radius-pill);
  font-size:14px;
  font-weight:500;
  color:var(--dim);
  white-space:nowrap;
  transition:color .16s ease,background-color .16s ease;
}
.nav-link:hover{color:var(--text);background:rgba(162,75,255,.14)}
.nav-link[aria-current="page"]{color:var(--text);background:rgba(255,106,26,.1)}
.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:11px;
  right:11px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--orange);
  box-shadow:0 0 10px rgba(255,106,26,.85);
}

.header-actions{display:flex;align-items:center;gap:8px;flex:none}
.region-chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 12px;
  border:1px dashed var(--grid);
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--dim);
  white-space:nowrap;
}
.region-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 8px rgba(43,227,198,.9);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  width:42px;
  height:42px;
  margin-left:auto;
  border:1px solid var(--grid);
  border-radius:14px;
  background:rgba(27,39,64,.5);
  color:var(--text);
  transition:border-color .16s ease,background-color .16s ease;
}
.nav-toggle:hover{border-color:var(--purple);background:rgba(162,75,255,.16)}
.nav-toggle-bar{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .2s ease,opacity .2s ease;
}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== footer ===== */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  border-top:1px solid var(--grid);
  background-image:linear-gradient(180deg,rgba(15,23,40,.3),rgba(15,23,40,.94) 58%);
  background-color:var(--bg);
}
.footer-grid{
  width:var(--shell);
  margin-inline:auto;
  padding:clamp(34px,5.5vw,64px) 0 clamp(22px,3vw,32px);
  display:grid;
  gap:clamp(22px,3vw,38px);
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,.85fr)) minmax(0,1.25fr);
}
.footer-brand .brand{margin-bottom:2px}
.footer-cta-line{
  margin:14px 0 16px;
  font-family:var(--font-display);
  font-size:22px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text);
}
.footer-status{display:grid;gap:8px;font-size:13px;color:var(--dim)}
.footer-status li{display:flex;align-items:center;gap:9px}

.footer-col-title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--orange);
}
.footer-links{display:grid;gap:9px}
.footer-links a{color:var(--dim);font-size:14.5px;transition:color .16s ease}
.footer-links a:hover{color:var(--text)}

.footer-contact-list{
  display:grid;
  gap:8px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px dashed var(--grid);
}
.footer-contact-list li{display:flex;gap:10px;font-size:13px}
.contact-key{
  flex:none;
  width:34px;
  padding-top:2px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--dim);
}
.contact-val{color:var(--text);line-height:1.6;word-break:break-word}

.footer-base{
  width:var(--shell);
  margin-inline:auto;
  padding:18px 0 clamp(22px,3vw,30px);
  border-top:1px solid var(--grid);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 20px;
}
.footer-legal{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.02em;
  color:var(--dim);
}
.footer-legal [data-year]{color:var(--text)}
.footer-meta{flex:1 1 240px;font-size:12.5px;color:var(--dim)}
.footer-mini-links{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12.5px}
.footer-mini-links a{color:var(--dim);border-bottom:1px solid transparent;transition:color .16s ease,border-color .16s ease}
.footer-mini-links a:hover{color:var(--orange);border-bottom-color:var(--orange)}

.back-to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 15px;
  border:1px solid var(--grid);
  border-radius:var(--radius-pill);
  background:rgba(15,23,40,.75);
  color:var(--dim);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,border-color .16s ease,color .16s ease;
}
.back-to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.back-to-top:hover{border-color:var(--orange);color:var(--text)}

/* ===== responsive ===== */
@media (max-width:1240px){
  .region-chip{display:none}
}
@media (max-width:1100px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:960px){
  .nav-toggle{display:flex}
  .primary-nav{
    position:absolute;
    left:0;
    right:0;
    top:calc(100% + 10px);
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    margin-left:0;
    padding:12px;
    border:1px solid var(--grid);
    border-radius:20px;
    background:rgba(12,19,33,.98);
    box-shadow:var(--shadow-hard);
  }
  .site-header[data-open="true"] .primary-nav{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:12px 14px;font-size:15px;border-radius:12px}
  .nav-link[aria-current="page"]::after{left:14px;right:auto;bottom:9px;width:18px}
  .header-actions{flex-wrap:wrap;padding-top:10px;border-top:1px dashed var(--grid)}
  .region-chip{display:inline-flex}
  .grid-3,.grid-asym{grid-template-columns:minmax(0,1fr)}
  .side-index{position:static;top:auto}
}
@media (max-width:640px){
  body{font-size:15px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-base{flex-direction:column;align-items:flex-start}
  .section-head{flex-direction:column;align-items:flex-start}
  .brand-line{font-size:10px}
}

/* ===== 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;
  }
  [data-reveal]{opacity:1;transform:none}
  .back-to-top{transform:none}
}