:root{
  --c-void:#050B1A;
  --c-panel:#0A1630;
  --c-blue:#1D5BFF;
  --c-blue-lift:#2F6CFF;
  --c-cyan:#12E0FF;
  --c-orange:#FF7A2F;
  --c-neon:#39FF9E;
  --c-paper:#F4F1E9;
  --c-text:#EAF1FF;
  --c-muted:#93A4C8;
  --c-rule:#23386B;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --wrap-w:1320px;
  --gutter:clamp(16px,4.2vw,44px);
  --r:2px;
  --shadow-deep:0 24px 52px rgba(0,0,0,.55);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--c-void)}
body{
  margin:0;
  min-height:100vh;
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  background-color:var(--c-void);
  background-image:
    radial-gradient(1100px 620px at 84% -6%, rgba(18,224,255,.09), transparent 62%),
    radial-gradient(880px 520px at 0% 6%, rgba(29,91,255,.15), transparent 60%),
    repeating-linear-gradient(0deg, rgba(35,56,107,.22) 0 1px, transparent 1px 72px);
  background-repeat:no-repeat,no-repeat,repeat;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:900;line-height:1.2;letter-spacing:-.015em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
button{font:inherit;color:inherit}
[hidden]{display:none !important}

a{color:var(--c-cyan)}
:focus-visible{outline:2px solid var(--c-orange);outline-offset:3px;border-radius:var(--r)}

.wrap{width:100%;max-width:var(--wrap-w);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:16px;top:-80px;z-index:200;
  padding:10px 18px;background:var(--c-orange);color:#0B0608;
  font-size:14px;font-weight:700;text-decoration:none;border-radius:var(--r);
  transition:top .2s ease;
}
.skip-link:focus{top:12px}

/* ---------- scroll progress ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--c-blue),var(--c-cyan) 62%,var(--c-neon));
  pointer-events:none;
  transition:width .08s linear;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(5,11,26,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-rule);
}
.header-brandbar{
  border-bottom:1px solid rgba(35,56,107,.72);
  background:linear-gradient(90deg,rgba(29,91,255,.18),rgba(5,11,26,0) 48%);
}
.brandbar-inner{
  display:flex;align-items:center;gap:clamp(14px,2.4vw,32px);
  min-height:56px;
}
.brand-lockup{
  display:flex;align-items:center;gap:12px;
  text-decoration:none;color:var(--c-text);flex:0 0 auto;
}
.brand-mark{
  position:relative;width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  border:1px solid var(--c-cyan);
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--c-cyan);
  background:linear-gradient(135deg,rgba(18,224,255,.16),rgba(29,91,255,.12));
}
.brand-mark::after{
  content:"";position:absolute;right:-1px;bottom:-1px;width:9px;height:9px;
  border-right:2px solid var(--c-orange);border-bottom:2px solid var(--c-orange);
}
.brand-text{display:flex;flex-direction:column;gap:1px;min-width:0}
.brand-name{font-size:15px;font-weight:900;letter-spacing:.01em;line-height:1.3}
.brand-sub{font-family:var(--font-mono);font-size:10.5px;color:var(--c-muted);letter-spacing:.05em;line-height:1.4}

.ticker{
  display:flex;align-items:center;gap:clamp(12px,2vw,26px);
  margin-left:auto;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.02em;
}
.ticker-item{display:flex;align-items:center;gap:7px;white-space:nowrap}
.ticker-key{color:var(--c-muted)}
.ticker-val{color:var(--c-neon);font-weight:700}
.ticker-val--cyan{color:var(--c-cyan)}

.live-dot{
  width:7px;height:7px;border-radius:50%;background:var(--c-neon);
  box-shadow:0 0 0 0 rgba(57,255,158,.6);
  animation:pulseDot 2.1s ease-out infinite;
}
@keyframes pulseDot{
  0%{box-shadow:0 0 0 0 rgba(57,255,158,.55)}
  70%{box-shadow:0 0 0 9px rgba(57,255,158,0)}
  100%{box-shadow:0 0 0 0 rgba(57,255,158,0)}
}

.brand-contact{
  display:flex;align-items:center;gap:14px;
  font-family:var(--font-mono);font-size:11px;color:var(--c-muted);
  white-space:nowrap;
}
.contact-line{display:inline-flex;align-items:center;gap:6px}
.contact-label{
  font-size:9.5px;letter-spacing:.14em;color:var(--c-cyan);
  border:1px solid rgba(18,224,255,.35);padding:1px 5px;line-height:1.5;
}

.header-navbar{background:rgba(10,22,48,.62)}
.navbar-inner{
  display:flex;align-items:center;gap:14px;
  min-height:58px;
}
.site-nav{display:block}
.nav-list{display:flex;align-items:stretch;gap:0}
.nav-item{display:flex}
.nav-link{
  position:relative;display:flex;align-items:center;gap:8px;
  min-height:58px;padding:0 clamp(11px,1.5vw,18px);
  color:var(--c-muted);text-decoration:none;
  font-size:15px;font-weight:500;letter-spacing:.01em;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--c-text);background:rgba(18,224,255,.06)}
.nav-idx{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;
  color:var(--c-rule);transition:color .2s ease;
}
.nav-link:hover .nav-idx{color:var(--c-cyan)}
.nav-link[aria-current="page"]{color:var(--c-text);font-weight:700}
.nav-link[aria-current="page"] .nav-idx{color:var(--c-cyan)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:clamp(11px,1.5vw,18px);right:clamp(11px,1.5vw,18px);bottom:0;height:2px;
  background:var(--c-cyan);
  box-shadow:0 0 12px rgba(18,224,255,.85);
}

.btn--nav{margin-left:auto}

.nav-toggle{
  display:none;margin-left:auto;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:56px;height:52px;
  background:transparent;border:1px solid var(--c-rule);border-radius:var(--r);
  cursor:pointer;color:var(--c-text);
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:var(--c-cyan);background:rgba(18,224,255,.07)}
.nav-toggle-box{position:relative;display:block;width:20px;height:14px}
.nav-toggle-box span{
  position:absolute;left:0;right:0;height:2px;background:var(--c-text);
  transition:transform .22s ease,opacity .18s ease;
}
.nav-toggle-box span:nth-child(1){top:0}
.nav-toggle-box span:nth-child(2){top:6px}
.nav-toggle-box span:nth-child(3){top:12px}
.site-header[data-open] .nav-toggle-box span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .nav-toggle-box span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle-box span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle-label{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.14em;color:var(--c-muted)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 22px;
  font-family:var(--font-sans);font-size:15px;font-weight:700;letter-spacing:.01em;
  text-decoration:none;cursor:pointer;
  border:1px solid transparent;border-radius:var(--r);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .16s ease;
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--c-blue);color:#FFFFFF}
.btn--primary:hover{background:var(--c-blue-lift);color:#FFFFFF}
.btn--accent{background:var(--c-orange);color:#12060A}
.btn--accent:hover{background:#FF8E4D;color:#12060A}
.btn--ghost{background:transparent;border-color:var(--c-rule);color:var(--c-text)}
.btn--ghost:hover{border-color:var(--c-cyan);color:var(--c-cyan)}
.btn--block{width:100%}

/* ---------- breadcrumb ---------- */
.breadcrumb{font-family:var(--font-mono);font-size:12px;letter-spacing:.03em}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb-item{display:flex;align-items:center;color:var(--c-muted)}
.breadcrumb-item + .breadcrumb-item::before{content:"/";margin-right:8px;color:var(--c-rule)}
.breadcrumb-link{color:var(--c-muted);text-decoration:none;transition:color .2s ease}
.breadcrumb-link:hover{color:var(--c-cyan)}
.breadcrumb-item[aria-current="page"]{color:var(--c-text)}

/* ---------- sections & prose ---------- */
.section-head{
  display:flex;align-items:flex-end;flex-wrap:wrap;gap:12px 18px;
  margin-bottom:clamp(18px,2.4vw,28px);
  padding-bottom:14px;
  border-bottom:1px solid var(--c-rule);
}
.section-num{
  flex:0 0 auto;
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--c-void);background:var(--c-paper);
  padding:3px 9px;line-height:1.5;
}
.section-title{
  font-size:clamp(23px,3.3vw,37px);
  color:var(--c-text);
}
.section-lead{
  flex:1 1 320px;
  color:var(--c-muted);font-size:15px;line-height:1.7;max-width:62ch;
}
.prose{max-width:68ch;font-size:17px;line-height:1.78;color:var(--c-text)}
.prose p{margin:0 0 1.15em}
.prose p:last-child{margin-bottom:0}
.prose h2{font-size:clamp(20px,2.4vw,27px);margin:1.6em 0 .6em}
.prose h3{font-size:18px;margin:1.4em 0 .5em;color:var(--c-cyan)}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.3em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:0 0 .45em}
.prose strong{color:var(--c-cyan);font-weight:700}

/* ---------- grid ---------- */
.grid{
  display:grid;gap:clamp(14px,2vw,24px);
  grid-template-columns:repeat(12,minmax(0,1fr));
}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}

/* ---------- panel ---------- */
.panel{
  position:relative;
  padding:clamp(16px,2vw,24px);
  background:linear-gradient(180deg,rgba(10,22,48,.94),rgba(8,17,38,.94));
  border:1px solid var(--c-rule);border-radius:var(--r);
}
.panel::before{
  content:"";position:absolute;left:-1px;top:-1px;width:16px;height:2px;background:var(--c-cyan);
}
.panel-title{
  font-size:16px;font-weight:900;letter-spacing:.01em;
  margin-bottom:10px;color:var(--c-text);
}
.panel-note{font-size:13px;color:var(--c-muted);line-height:1.7}

/* ---------- tags & data ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;line-height:1.5;
  padding:3px 9px;border:1px solid var(--c-rule);border-radius:var(--r);
  color:var(--c-muted);background:rgba(10,22,48,.6);
}
.tag--cyan{color:var(--c-cyan);border-color:rgba(18,224,255,.45)}
.tag--orange{color:var(--c-orange);border-color:rgba(255,122,47,.5)}
.tag--neon{color:var(--c-neon);border-color:rgba(57,255,158,.45)}

.data-chip{display:flex;align-items:baseline;gap:8px;font-family:var(--font-mono)}
.data-chip__num{font-size:clamp(20px,2.6vw,28px);font-weight:700;color:var(--c-cyan);letter-spacing:-.01em}
.data-chip__key{font-size:11px;letter-spacing:.1em;color:var(--c-muted);text-transform:uppercase}

/* ---------- media frames ---------- */
.media{
  position:relative;display:block;overflow:hidden;
  background:var(--c-panel);border:1px solid var(--c-rule);border-radius:var(--r);
}
.media img{width:100%;height:100%;object-fit:cover}
.media--16-9{aspect-ratio:16/9}
.media--4-3{aspect-ratio:4/3}
.media--1-1{aspect-ratio:1/1}
.media--21-9{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media-frame{position:relative}
.media-frame::before,
.media-frame::after{
  content:"";position:absolute;width:16px;height:16px;pointer-events:none;z-index:2;
}
.media-frame::before{top:-1px;left:-1px;border-top:2px solid var(--c-cyan);border-left:2px solid var(--c-cyan)}
.media-frame::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--c-orange);border-right:2px solid var(--c-orange)}
.media-caption{
  display:block;margin-top:9px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.03em;
  color:var(--c-muted);line-height:1.65;
}

/* ---------- filter bar ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0 18px;
  border-bottom:1px dashed rgba(35,56,107,.9);
  margin-bottom:clamp(16px,2.2vw,26px);
}
.filter-btn{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 15px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;
  background:rgba(10,22,48,.72);border:1px solid var(--c-rule);border-radius:var(--r);
  color:var(--c-muted);cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.filter-btn:hover{color:var(--c-text);border-color:var(--c-cyan)}
.filter-btn[aria-pressed="true"]{
  background:var(--c-orange);border-color:var(--c-orange);color:#14070B;font-weight:700;
}
.filter-empty{
  font-family:var(--font-mono);font-size:12.5px;color:var(--c-muted);
  padding:22px 0;
}

/* ---------- reveal ---------- */
[data-reveal]{transition:opacity .55s cubic-bezier(.2,.7,.3,1),transform .55s cubic-bezier(.2,.7,.3,1)}
[data-reveal].is-hidden{opacity:0;transform:translateY(16px)}
[data-reveal].is-shown{opacity:1;transform:none}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(64px,9vw,110px);
  border-top:1px solid var(--c-rule);
  background:linear-gradient(180deg,rgba(10,22,48,.9),rgba(5,11,26,.99));
}
.footer-rule{
  height:7px;
  background:repeating-linear-gradient(90deg,var(--c-rule) 0 22px,transparent 22px 34px);
  opacity:.85;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1.15fr .95fr 1.5fr;
  gap:clamp(22px,3vw,40px);
  padding:clamp(34px,4.6vw,56px) 0 clamp(24px,3vw,38px);
}
.footer-col{min-width:0}
.footer-tag{
  display:inline-block;margin-bottom:14px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;line-height:1.6;
  color:var(--c-void);background:var(--c-paper);padding:3px 9px;
}
.footer-brand-name{font-size:20px;font-weight:900;letter-spacing:.01em;margin-bottom:8px}
.footer-note{font-size:12.5px;line-height:1.75;color:var(--c-muted);max-width:38ch}
.footer-icp{
  margin-top:14px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;color:var(--c-muted);
  border-left:2px solid var(--c-rule);padding-left:10px;
}
.footer-list{display:grid;gap:10px}
.footer-link{
  display:inline-block;
  color:var(--c-muted);text-decoration:none;font-size:14.5px;
  transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--c-cyan);transform:translateX(3px)}
.footer-list--contact{gap:12px}
.footer-contact-item{
  display:block;
  font-family:var(--font-mono);font-size:12.5px;line-height:1.7;
  color:var(--c-text);word-break:break-word;
}
.footer-contact-key{
  display:inline-block;min-width:38px;margin-right:8px;
  font-size:10px;letter-spacing:.14em;color:var(--c-cyan);
  border:1px solid rgba(18,224,255,.35);padding:1px 5px;vertical-align:1px;
}
.footer-col .footer-note{margin-top:12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 26px;
  padding:20px 0 34px;
  border-top:1px solid rgba(35,56,107,.85);
}
.footer-copy{font-family:var(--font-mono);font-size:12px;color:var(--c-muted);letter-spacing:.03em}
.footer-legal{display:flex;flex-wrap:wrap;gap:20px}
.footer-legal-link{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.03em;
  color:var(--c-muted);text-decoration:none;
  border-bottom:1px solid var(--c-rule);padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.footer-legal-link:hover{color:var(--c-cyan);border-color:var(--c-cyan)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .ticker-item:nth-child(3){display:none}
}
@media (max-width:1000px){
  .ticker{display:none}
}
@media (max-width:960px){
  .brand-contact{display:none}
  .brandbar-inner{min-height:52px}
  .navbar-inner{min-height:56px}
  .nav-toggle{display:flex}
  .btn--nav{margin-left:0;min-height:42px;padding:0 16px;font-size:14px}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;
    background:#071026;
    border-top:1px solid var(--c-rule);
    border-bottom:1px solid var(--c-rule);
    box-shadow:var(--shadow-deep);
    max-height:min(70vh,540px);
    overflow-y:auto;
    overscroll-behavior:contain;
  }
  .site-header[data-open] .site-nav{display:block;animation:navDrop .22s ease}
  @keyframes navDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
  .nav-list{flex-direction:column;gap:0;padding:6px 0}
  .nav-item{display:block}
  .nav-link{
    min-height:54px;padding:0 var(--gutter);
    font-size:16.5px;
    border-bottom:1px solid rgba(35,56,107,.55);
  }
  .nav-item:last-child .nav-link{border-bottom:0}
  .nav-link[aria-current="page"]{background:rgba(18,224,255,.08);color:var(--c-cyan)}
  .nav-link[aria-current="page"]::after{
    left:0;right:auto;top:11px;bottom:11px;width:3px;height:auto;
  }
  .nav-idx{font-size:11px;min-width:22px}
  .grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-3,.col-4,.col-5{grid-column:span 3}
  .col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 6}
}
@media (max-width:1040px) and (min-width:621px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:760px){
  body{font-size:16px}
  .section-head{align-items:flex-start}
  .section-lead{flex:1 1 100%}
}
@media (max-width:620px){
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-legal{gap:16px}
  .brand-sub{font-size:10px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .live-dot{animation:none;box-shadow:none}
  [data-reveal]{transition:none}
  [data-reveal].is-hidden{opacity:1;transform:none}
  .scroll-progress{transition:none}
}