*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol,pre{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
table{border-collapse:collapse;width:100%}

:root{
  --ink:#111318;
  --ink-2:#1C2029;
  --ink-3:#171A21;
  --paper:#F4F1EA;
  --paper-2:#E7E2D6;
  --silver:#D7DCE3;
  --line:#CDD3DB;
  --line-dark:#2A2F3A;
  --orange:#FF5A1F;
  --orange-deep:#B33A0C;
  --blue:#2D6BFF;
  --cyan:#22D3EE;
  --text:#3A3F49;
  --muted:#6B7280;
  --dim:#7C8492;
  --pad:20px;
  --r:2px;
  --font-display:"Oswald","Archivo Narrow","Arial Narrow","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --shadow:0 1px 0 rgba(17,19,24,.04),0 4px 14px rgba(17,19,24,.06);
}

body{
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  letter-spacing:.004em;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:800;
  color:var(--ink);
  line-height:1.1;
  letter-spacing:-.012em;
}
h1{font-size:clamp(30px,4.6vw,56px)}
h2{font-size:clamp(23px,3vw,38px)}
h3{font-size:clamp(18px,2vw,24px)}
h4{font-size:17px;letter-spacing:.015em}
strong{font-weight:700;color:var(--ink)}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:-.01em}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

.shell{width:100%;max-width:1220px;margin-inline:auto;padding-inline:var(--pad)}
main{display:block}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:8px;top:-64px;z-index:120;
  background:var(--orange);color:#12141A;
  padding:10px 16px;border-radius:var(--r);
  font-family:var(--font-mono);font-size:13px;font-weight:700;
  transition:top .18s ease;
}
.skip-link:focus{top:10px}

/* ---------- header ---------- */
.site-header{position:relative;z-index:40;background:var(--ink)}
.topbar{background:var(--ink);border-bottom:1px solid var(--line-dark)}
.topbar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;flex-wrap:wrap;padding-block:10px;
}
.brand{display:flex;align-items:baseline;gap:12px;min-width:0}
.brand__mark{
  font-family:var(--font-display);font-weight:800;font-size:20px;
  color:#fff;letter-spacing:.01em;white-space:nowrap;
}
.brand__line{font-size:12px;color:var(--silver);opacity:.72;letter-spacing:.06em;white-space:nowrap}
.topbar__status{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12.5px;color:var(--silver);
}
.topbar__contact{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--silver)}
.topbar__label{
  font-size:10.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
}
.topbar__hotline{font-family:var(--font-mono);font-weight:700;color:#fff;letter-spacing:.02em}
.pulse-dot{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:none;
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,211,238,.5)}
  70%{box-shadow:0 0 0 8px rgba(34,211,238,0)}
  100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}
}

.navbar{background:var(--ink-2);border-bottom:1px solid var(--line-dark)}
.navbar__inner{
  position:relative;display:flex;align-items:center;gap:14px;
  min-height:54px;justify-content:space-between;
}
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 12px;border:1px solid var(--line-dark);border-radius:var(--r);
  color:var(--silver);font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
}
.nav-toggle__bars{position:relative;width:16px;height:2px;background:var(--silver);flex:none}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--silver);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}

.nav{flex:1 1 auto;min-width:0}
.nav__list{display:flex;align-items:stretch;flex-wrap:wrap}
.nav__link{
  display:flex;align-items:baseline;gap:7px;
  padding:16px 14px;border-bottom:2px solid transparent;
  font-family:var(--font-display);font-weight:700;font-size:15px;
  color:#B9C0CC;letter-spacing:.02em;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.nav__link::before{
  content:attr(data-idx);
  font-family:var(--font-mono);font-size:10px;font-weight:700;
  color:#5B6371;letter-spacing:.04em;
}
.nav__link:hover{color:#fff;background:rgba(255,255,255,.045)}
.nav__link[aria-current="page"]{color:#fff;border-bottom-color:var(--orange)}
.nav__link[aria-current="page"]::before{color:var(--orange)}
.navbar__cta{flex:none}

.searcher{background:var(--paper-2);border-bottom:1px solid var(--line)}
.searcher__inner{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-block:10px;
}
.searcher__field{
  display:flex;align-items:center;gap:10px;flex:1 1 320px;min-width:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:8px 12px;transition:border-color .18s ease,box-shadow .18s ease;
}
.searcher__field:focus-within{border-color:var(--orange);box-shadow:0 0 0 2px rgba(255,90,31,.16)}
.searcher__icon{position:relative;width:12px;height:12px;border:2px solid var(--orange-deep);border-radius:50%;flex:none}
.searcher__icon::after{
  content:"";position:absolute;right:-5px;bottom:-3px;width:7px;height:2px;
  background:var(--orange-deep);transform:rotate(45deg);
}
.searcher__input{flex:1 1 auto;min-width:0;font-size:14px;font-family:var(--font-body)}
.searcher__input::placeholder{color:#8A919C}
.searcher__hint{
  font-family:var(--font-mono);font-size:11px;color:var(--muted);
  letter-spacing:.06em;white-space:nowrap;
}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  padding:6px 10px;border:1px solid var(--line);border-radius:var(--r);
  background:#fff;color:var(--text);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.chip:hover{border-color:var(--orange-deep);color:var(--orange-deep)}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff}

.scroll-progress{
  position:fixed;top:0;left:0;width:100%;height:3px;z-index:110;
  background:linear-gradient(90deg,var(--orange),var(--cyan));
  transform:scaleX(0);transform-origin:0 50%;pointer-events:none;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border:1px solid transparent;border-radius:var(--r);
  font-family:var(--font-display);font-weight:700;font-size:14px;letter-spacing:.04em;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--signal{background:var(--orange);border-color:var(--orange);color:#12141A}
.btn--signal:hover{background:#FF6E3A;transform:translateY(-1px)}
.btn--ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn--ghost:hover{border-color:var(--orange);color:var(--orange-deep)}
.btn--blue{background:var(--blue);border-color:var(--blue);color:#fff}
.btn--blue:hover{background:#1C58E6}
.btn--onDark{border-color:#39404D;color:var(--silver);background:transparent}
.btn--onDark:hover{border-color:var(--orange);color:#fff}
.btn--sm{padding:8px 13px;font-size:13px}

/* ---------- sections & layout ---------- */
.section{padding-block:clamp(40px,6vw,88px)}
.section--paper{background:var(--paper)}
.section--alt{background:var(--paper-2)}
.section--dark{background:var(--ink);color:var(--silver)}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff}
.section--dark .panel__title{color:#fff}
.section__head{
  display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;
  padding-bottom:14px;margin-bottom:28px;border-bottom:1px solid var(--line);
}
.section--dark .section__head{border-bottom-color:var(--line-dark)}
.index-num{
  font-family:var(--font-mono);font-size:12px;font-weight:700;
  color:var(--orange);letter-spacing:.12em;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--orange-deep);
}
.section--dark .eyebrow{color:var(--cyan)}
.lede{font-size:clamp(17px,1.7vw,21px);line-height:1.6;color:var(--ink);max-width:34em}
.section--dark .lede{color:var(--silver)}
.meta-line{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em}

.grid{display:grid;gap:16px}
.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--bento{grid-template-columns:repeat(6,minmax(0,1fr))}
.span-2{grid-column:span 2}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}

.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:20px;box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease;
}
.panel:hover{border-color:var(--orange);transform:translateY(-2px)}
.panel--dark{background:var(--ink-2);border-color:var(--line-dark);color:var(--silver);box-shadow:none}
.panel--dark:hover{border-color:var(--orange)}
.panel__kicker{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--orange-deep);
}
.panel--dark .panel__kicker{color:var(--cyan)}
.panel__title{
  font-family:var(--font-display);font-weight:800;font-size:19px;
  color:inherit;line-height:1.2;margin-top:8px;
}
.panel__text{font-size:14px;margin-top:8px;line-height:1.6}

.stat{display:grid;gap:6px}
.stat__value{
  font-family:var(--font-mono);font-weight:700;font-variant-numeric:tabular-nums;
  font-size:clamp(24px,3vw,34px);color:var(--ink);letter-spacing:-.02em;
}
.section--dark .stat__value{color:#fff}
.stat__label{font-size:12.5px;color:var(--muted);letter-spacing:.04em}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.08em;
  padding:4px 8px;border:1px solid var(--line);border-radius:999px;
  background:#fff;color:var(--text);
}
.tag--orange{color:var(--orange-deep);border-color:rgba(179,58,12,.35);background:rgba(255,90,31,.09)}
.tag--blue{color:var(--blue);border-color:rgba(45,107,255,.3);background:rgba(45,107,255,.07)}
.tag--cyan{color:#0E7490;border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.12)}
.tag--dark{color:var(--silver);border-color:var(--line-dark);background:transparent}

.data-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
}
.data-table{min-width:660px;font-size:14px}
.data-table th,.data-table td{
  padding:12px 14px;text-align:left;white-space:nowrap;
  border-bottom:1px solid var(--line);
}
.data-table th{
  background:var(--paper-2);font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);
}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table td.num{font-family:var(--font-mono);font-weight:600;font-variant-numeric:tabular-nums}

.rail{position:relative;margin-inline:calc(var(--pad) * -1)}
.rail::before,.rail::after{
  content:"";position:absolute;top:0;bottom:16px;width:32px;z-index:2;
  pointer-events:none;
}
.rail::before{left:0;background:linear-gradient(90deg,rgba(244,241,234,.95),rgba(244,241,234,0))}
.rail::after{right:0;background:linear-gradient(270deg,rgba(244,241,234,.95),rgba(244,241,234,0))}
.rail__track{
  display:flex;gap:14px;overflow-x:auto;padding:4px var(--pad) 16px;
  scroll-snap-type:x proximity;
}
.rail__track > *{flex:0 0 auto;scroll-snap-align:start}

.prose{max-width:42em}
.prose p{font-size:16.5px;line-height:1.75;margin-bottom:1em}
.prose h2{margin:1.6em 0 .55em}
.prose h3{margin:1.4em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.35em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.45em;line-height:1.7}
.prose a{color:var(--orange-deep);border-bottom:1px solid rgba(179,58,12,.4)}
.prose a:hover{border-bottom-color:var(--orange)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:14px;font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.05em;color:var(--muted);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb a{color:var(--orange-deep)}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--line)}

/* ---------- image containers ---------- */
.frame{
  position:relative;overflow:hidden;border:1px solid var(--line);
  border-radius:var(--r);background:var(--ink-2);
}
.frame > img{width:100%;height:100%;object-fit:cover}
.frame--21x9{aspect-ratio:21/9}
.frame--16x9{aspect-ratio:16/9}
.frame--3x2{aspect-ratio:3/2}
.frame--4x3{aspect-ratio:4/3}
.frame--1x1{aspect-ratio:1/1}
.frame--grid{
  background-color:var(--ink-3);
  background-image:
    linear-gradient(var(--line-dark) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-dark) 1px,transparent 1px);
  background-size:24px 24px;
}
.frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:22px 12px 10px;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.05em;color:var(--silver);
  background:linear-gradient(to top,rgba(17,19,24,.88),rgba(17,19,24,0));
}
.media-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--silver)}
.footer__inner{
  display:grid;grid-template-columns:1.1fr 2fr 1.2fr;gap:40px;
  padding-block:52px 36px;
}
.footer__mark{
  display:inline-block;font-family:var(--font-display);font-weight:800;
  font-size:22px;color:#fff;letter-spacing:.01em;
}
.footer__line{font-size:13px;color:#9AA3B0;margin-top:8px;letter-spacing:.04em}
.footer__stats{
  font-size:12.5px;color:var(--dim);margin-top:14px;line-height:1.9;
}
.footer__links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer__coltitle{
  display:flex;align-items:baseline;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);
}
.footer__coltitle .mono{color:#5D6675}
.footer__list{margin-top:12px;display:grid;gap:8px}
.footer__list a{font-size:13.5px;color:var(--silver);border-bottom:1px solid transparent}
.footer__list a:hover{color:#fff;border-bottom-color:var(--orange)}
.footer__contact{display:grid;gap:8px;font-size:12.8px;color:#9AA3B0}
.footer__contactline{color:var(--silver);font-family:var(--font-mono);font-size:12.5px}
.footer__note{font-size:12px;color:var(--dim);line-height:1.7}
.footer__legal{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);padding-block:18px;
}
.footer__copy{font-family:var(--font-mono);font-size:11.5px;color:var(--dim);letter-spacing:.04em}
.footer__legalnav{display:flex;gap:16px;flex-wrap:wrap}
.footer__legalnav a{font-size:12px;color:var(--silver)}
.footer__legalnav a:hover{color:var(--orange)}

/* ---------- dock ---------- */
.dock{
  position:fixed;right:18px;bottom:18px;z-index:100;
  display:flex;flex-direction:column;gap:8px;
}
.dock[hidden]{display:none}
.dock__btn{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  padding:9px 12px;text-align:center;
  background:var(--ink);color:var(--silver);
  border:1px solid #333A47;border-radius:var(--r);
  box-shadow:0 6px 18px rgba(17,19,24,.28);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.dock__btn:hover{border-color:var(--orange);color:#fff}
.dock__btn--top{background:var(--orange);border-color:var(--orange);color:#12141A;font-weight:700}
.dock__btn--top:hover{background:#FF6E3A;color:#12141A}

/* ---------- reveal motion ---------- */
.js [data-reveal]{opacity:0;transform:translateY(8px)}
.js [data-reveal].is-in{
  opacity:1;transform:none;
  transition:opacity .45s ease,transform .45s ease;
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .topbar__status{display:none}
  .footer__inner{grid-template-columns:1fr 1fr;gap:32px}
  .footer__contact{grid-column:1 / -1}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .span-4{grid-column:span 2}
  .span-3{grid-column:span 2}
}
@media (max-width:960px){
  .navbar__inner{justify-content:space-between}
  .nav-toggle{display:inline-flex}
  .navbar__cta{display:none}
  .nav{
    display:none;position:absolute;left:0;right:0;top:100%;z-index:60;
    background:var(--ink-2);border-bottom:1px solid var(--line-dark);
    box-shadow:0 18px 32px rgba(0,0,0,.38);
    max-height:72vh;overflow-y:auto;
  }
  .nav[data-open]{display:block}
  .nav__list{flex-direction:column}
  .nav__link{
    padding:14px 20px;border-bottom:1px solid var(--line-dark);
    border-left:2px solid transparent;
  }
  .nav__link[aria-current="page"]{
    border-bottom-color:var(--line-dark);
    border-left-color:var(--orange);
    background:rgba(255,90,31,.07);
  }
  .searcher__hint{display:none}
  .footer__links{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:720px){
  :root{--pad:16px}
  body{font-size:15.5px}
  .brand__line{display:none}
  .topbar__inner{gap:12px;padding-block:9px}
  .searcher__field{flex:1 1 100%}
  .chips{width:100%}
  .grid--2,.grid--3,.grid--4,.grid--bento{grid-template-columns:minmax(0,1fr)}
  .span-2,.span-3,.span-4,.span-6{grid-column:auto}
  .footer__inner{grid-template-columns:minmax(0,1fr);gap:28px;padding-block:40px 28px}
  .footer__links{grid-template-columns:minmax(0,1fr)}
  .footer__contact{grid-column:auto}
  .footer__legal{flex-direction:column;align-items:flex-start;gap:12px}
  .dock{right:12px;bottom:12px}
}

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