:root{
  --ink-900:#040A18;
  --ink-800:#071026;
  --ink-700:#0C1A33;
  --line:#16294A;
  --glass:#7AA8FF1F;
  --text:#E8F0FF;
  --muted:#93A7C9;
  --orange:#FF6A1A;
  --orange-soft:#FF8340;
  --lime:#B8FF3C;
  --signal:#2E6BFF;
  --wrap:1240px;
  --gutter:clamp(16px,4vw,48px);
  --font-sans:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Barlow Condensed",ui-monospace,"SF Mono",Menlo,Consolas,"Courier New",monospace;
  --ease:140ms cubic-bezier(.2,.7,.3,1);
  --skew:-3deg;
}
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--ink-900);
  background-image:radial-gradient(rgba(122,168,255,.055) 1px,transparent 1px);
  background-size:3px 3px;
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{max-width:100%;display:block}
a{color:var(--text);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;transition:color var(--ease),text-decoration-color var(--ease)}
a:hover{color:var(--orange);text-decoration-thickness:2px}
button{font:inherit}
::selection{background:var(--orange);color:#0A0F1C}
:where(a,button,[tabindex]):focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.skip-link{
  position:fixed;left:12px;top:-72px;z-index:200;
  display:inline-block;padding:10px 18px;
  background:var(--orange);color:#0A0F1C;
  font-weight:800;font-size:14px;letter-spacing:.06em;text-decoration:none;
  transition:top var(--ease);
}
.skip-link:focus{top:12px;color:#0A0F1C}

/* ---------- scroll progress ---------- */
.brk-progress{
  position:fixed;top:0;right:0;bottom:0;width:2px;z-index:120;
  background:rgba(22,41,74,.55);pointer-events:none;
}
.brk-progress__bar{
  display:block;width:100%;height:100%;
  background:var(--lime);
  transform-origin:top center;
  transform:scaleY(0);
  box-shadow:0 0 10px rgba(184,255,60,.5);
}

/* ---------- header ---------- */
.site-header{position:relative;z-index:100;background:var(--ink-900)}
.hdr-ruler{
  display:flex;justify-content:space-between;align-items:flex-start;
  height:18px;padding-inline:var(--gutter);
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 30px);
  background-repeat:repeat-x;
  background-position:left bottom;
  background-size:30px 7px;
  overflow:hidden;
}
.hdr-ruler__tick{
  font-family:var(--font-mono);font-size:9px;line-height:1;
  letter-spacing:.12em;color:var(--muted);opacity:.5;
}
.hdr-upper{
  background:linear-gradient(180deg,rgba(122,168,255,.09),rgba(122,168,255,.02));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.hdr-upper__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(16px,2.4vw,40px);
  padding-block:14px;
}
.brand{
  display:inline-flex;align-items:center;gap:12px;
  text-decoration:none;color:var(--text);
}
.brand:hover{color:var(--text)}
.brand__mark{
  position:relative;flex:0 0 auto;
  width:34px;height:34px;background:var(--orange);
  transform:skewX(-12deg);
  transition:background-color var(--ease),transform var(--ease);
}
.brand__mark::after{
  content:"";position:absolute;inset:7px;
  border:2px solid var(--ink-900);
}
.brand:hover .brand__mark{background:var(--lime);transform:skewX(-12deg) translateY(-1px)}
.brand__text{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand__name{
  display:inline-block;
  font-size:20px;font-weight:900;line-height:1.1;
  letter-spacing:.03em;
  transform:skewX(var(--skew));
  white-space:nowrap;
}
.brand__eyebrow{
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;white-space:nowrap;
}
.hdr-upper__note{
  font-size:13px;line-height:1.6;color:var(--muted);
  padding-left:14px;border-left:1px solid var(--line);
  min-width:0;
}
.hdr-status{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 13px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  font-size:12.5px;line-height:1.4;color:var(--muted);
  white-space:nowrap;
}
.hdr-status__dot{
  flex:0 0 auto;width:7px;height:7px;background:var(--lime);
  box-shadow:0 0 0 3px rgba(184,255,60,.16);
}
.hdr-nav{
  position:sticky;top:0;z-index:110;
  background:linear-gradient(180deg,rgba(7,16,38,.96),rgba(4,10,24,.9));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.hdr-nav__inner{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
}
.primary-nav{flex:1 1 auto;min-width:0}
.primary-nav__list{
  display:flex;align-items:center;gap:2px;
  padding-block:2px;
}
.primary-nav__item{transition:transform var(--ease)}
.primary-nav__item:nth-child(3n+2){transform:translateY(3px)}
.primary-nav__item:nth-child(3n){transform:translateY(-2px)}
.primary-nav__link{
  position:relative;
  display:flex;align-items:center;gap:8px;
  padding:15px 16px;
  font-size:14.5px;font-weight:700;letter-spacing:.05em;
  color:var(--text);text-decoration:none;
  transition:color var(--ease),background-color var(--ease);
}
.primary-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:transparent;transform:scaleX(.35);transform-origin:left center;
  transition:transform var(--ease),background-color var(--ease);
}
.primary-nav__idx{
  font-family:var(--font-mono);font-size:10.5px;font-weight:400;
  letter-spacing:0;color:var(--muted);transition:color var(--ease);
}
.primary-nav__link:hover{color:var(--orange);background:rgba(255,106,26,.08)}
.primary-nav__link:hover .primary-nav__idx{color:var(--orange)}
.primary-nav__link:hover::after{background:var(--orange);transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:var(--lime);background:var(--glass)}
.primary-nav__link[aria-current="page"] .primary-nav__idx{color:var(--lime)}
.primary-nav__link[aria-current="page"]::after{background:var(--lime);transform:scaleX(1)}
.hdr-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 13px;
  background:transparent;color:var(--text);
  border:1px solid var(--line);
  font-size:13px;font-weight:700;letter-spacing:.1em;
  cursor:pointer;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.nav-toggle:hover{color:var(--orange);border-color:var(--orange);background:rgba(255,106,26,.08)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__bar{
  display:block;height:2px;background:currentColor;
  transition:transform var(--ease),opacity var(--ease);
}
.hdr-nav[data-open] .nav-toggle__bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.hdr-nav[data-open] .nav-toggle__bar:nth-child(2){opacity:0}
.hdr-nav[data-open] .nav-toggle__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.nav-toggle__label{line-height:1}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 18px;
  border:1px solid transparent;
  font-size:14px;font-weight:800;line-height:1.2;letter-spacing:.05em;
  text-decoration:none;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.btn--solid{
  background:var(--orange);color:#0A0F1C;
  clip-path:polygon(0 0,100% 0,calc(100% - 12px) 100%,0 100%);
}
.btn--solid:hover,.btn--solid:focus-visible{background:var(--orange-soft);color:#0A0F1C;transform:translateY(-2px)}
.btn--ghost{
  background:transparent;color:var(--text);border-color:var(--line);
}
.btn--ghost:hover,.btn--ghost:focus-visible{
  background:var(--glass);border-color:var(--orange);color:var(--orange);transform:translateY(-2px);
}

/* ---------- shared page utilities ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 11px;
  border:1px solid var(--line);
  background:var(--glass);
  font-family:var(--font-mono);font-size:11px;line-height:1.5;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{content:"";width:5px;height:5px;background:var(--lime);flex:0 0 auto}
.section-rule{
  display:flex;align-items:center;gap:14px;
  margin-bottom:clamp(18px,3vw,28px);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted);
}
.section-rule::after{content:"";flex:1 1 auto;height:1px;background:var(--line)}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--muted);
}
.crumbs a{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:1px}
.crumbs a:hover{color:var(--orange);border-bottom-color:var(--orange)}
.crumbs__sep{color:var(--line)}
.tag{
  display:inline-block;padding:3px 9px;
  border:1px solid var(--line);background:rgba(122,168,255,.06);
  font-size:12px;line-height:1.5;letter-spacing:.06em;color:var(--muted);
}
.tag--hot{color:var(--orange);border-color:rgba(255,106,26,.5);background:rgba(255,106,26,.09)}
.tag--live{color:var(--lime);border-color:rgba(184,255,60,.45);background:rgba(184,255,60,.08)}
.prose{max-width:68ch;font-size:17px;line-height:1.85;color:var(--text)}
.prose p{margin-bottom:1.2em}
.prose p:last-child{margin-bottom:0}
.prose h2{
  font-size:clamp(24px,3vw,32px);font-weight:900;line-height:1.25;
  letter-spacing:-.01em;margin:1.7em 0 .55em;
}
.prose h3{
  font-size:clamp(19px,2.2vw,24px);font-weight:800;line-height:1.35;
  margin:1.5em 0 .5em;
}
.prose ul{list-style:none;margin:0 0 1.2em;padding:0;display:grid;gap:.55em}
.prose li{position:relative;padding-left:20px}
.prose li::before{
  content:"";position:absolute;left:0;top:.85em;
  width:8px;height:1px;background:var(--signal);
}
.prose a{color:var(--text);text-decoration-color:var(--line)}
.prose a:hover{color:var(--orange);text-decoration-color:var(--orange)}
.prose strong{font-weight:800;color:var(--text)}
.prose blockquote{
  margin:1.4em 0;padding:2px 0 2px 18px;
  border-left:2px solid var(--lime);color:var(--muted);
}
.figure{margin:0}
.figure__frame{
  position:relative;overflow:hidden;aspect-ratio:16/9;
  border:1px solid var(--line);
  background-color:var(--ink-700);
  background-image:
    repeating-linear-gradient(135deg,rgba(122,168,255,.07) 0 2px,transparent 2px 14px),
    linear-gradient(160deg,rgba(255,106,26,.12),transparent 48%,rgba(46,107,255,.14));
}
.figure__frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 55%,rgba(4,10,24,.55));
}
.figure__img{display:block;width:100%;height:100%;object-fit:cover}
.figure__cap{
  margin-top:10px;padding-left:10px;
  border-left:1px solid var(--line);
  font-size:13px;line-height:1.7;color:var(--muted);
}
.figure--portrait .figure__frame{aspect-ratio:4/5}
.figure--square .figure__frame{aspect-ratio:1/1}
[data-reveal]{
  opacity:0;transform:translateY(10px);
  transition:opacity 320ms ease,transform 320ms ease;
}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,9vw,120px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(122,168,255,.08),rgba(122,168,255,.025));
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.ftr-grid-deco{
  position:absolute;top:0;left:0;right:0;height:9px;
  pointer-events:none;overflow:hidden;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 26px);
  background-repeat:repeat-x;background-position:left top;background-size:26px 9px;
  opacity:.9;
}
.ftr-grid-deco::after{
  content:"";position:absolute;top:0;left:var(--gutter);width:64px;height:2px;background:var(--lime);
}
.ftr-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1.7fr) minmax(0,1.05fr);
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(40px,6vw,76px) clamp(28px,4vw,48px);
}
.ftr-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.brand--footer .brand__mark{width:30px;height:30px}
.brand--footer .brand__name{font-size:18px}
.ftr-brand__line{
  max-width:34ch;
  font-size:14px;line-height:1.8;color:var(--muted);
  padding-top:4px;
  border-top:1px solid var(--line);
  width:100%;
}
.ftr-service{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--muted);
}
.ftr-service::before{content:"";width:6px;height:6px;background:var(--signal);flex:0 0 auto}
.ftr-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,3vw,40px);
}
.ftr-col__title,
.ftr-contact__title{
  position:relative;
  margin-bottom:14px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-size:12px;font-weight:700;line-height:1.4;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
}
.ftr-col__title::before,
.ftr-contact__title::before{
  content:"";position:absolute;left:0;bottom:-1px;width:28px;height:1px;background:var(--lime);
}
.ftr-col__list{display:grid;gap:10px}
.ftr-link{
  display:inline-block;
  font-size:14.5px;line-height:1.6;color:var(--text);
  text-decoration:none;
  border-bottom:1px solid var(--line);padding-bottom:2px;
  transition:color var(--ease),border-color var(--ease);
}
.ftr-link:hover{color:var(--orange);border-bottom-color:var(--orange)}
.ftr-contact{display:flex;flex-direction:column;align-items:flex-start}
.ftr-contact__line{
  display:flex;align-items:baseline;gap:10px;
  width:100%;margin-bottom:8px;
  font-size:13.5px;line-height:1.7;color:var(--muted);
  word-break:break-word;
}
.ftr-contact__k{
  flex:0 0 40px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--signal);
}
.ftr-contact__cta{margin-top:14px}
.ftr-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;
  padding-block:18px 28px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:11.5px;line-height:1.7;
  letter-spacing:.06em;color:var(--muted);
}
.ftr-legal__item{margin:0}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .hdr-actions .btn--ghost{display:none}
  .primary-nav__link{padding:15px 12px}
}
@media (max-width:1040px){
  .hdr-upper__note{display:none}
  .hdr-upper__inner{grid-template-columns:auto minmax(0,1fr) auto}
  .ftr-inner{grid-template-columns:minmax(0,1fr) minmax(0,1.4fr)}
  .ftr-brand{grid-column:1 / -1}
  .ftr-contact{grid-column:1 / -1}
  .ftr-contact__line{max-width:520px}
}
@media (max-width:900px){
  body{font-size:16.5px}
  .nav-toggle{display:inline-flex}
  .primary-nav{
    display:none;
    position:absolute;left:calc(var(--gutter) * -1);right:calc(var(--gutter) * -1);
    top:100%;
    background:var(--ink-800);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 28px 48px rgba(0,0,0,.6);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
  }
  .hdr-nav[data-open] .primary-nav{display:block}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0;padding-block:0}
  .primary-nav__item,
  .primary-nav__item:nth-child(3n+2),
  .primary-nav__item:nth-child(3n){transform:none}
  .primary-nav__item + .primary-nav__item{border-top:1px solid var(--line)}
  .primary-nav__link{padding:14px calc(var(--gutter) + 4px);font-size:15px}
  .primary-nav__link::after{display:none}
  .primary-nav__link[aria-current="page"]{border-left:2px solid var(--lime)}
  .hdr-nav__inner{justify-content:space-between;padding-block:10px;gap:12px}
  .primary-nav{flex:0 0 auto}
  .hdr-actions{margin-left:auto}
  .ftr-cols{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:760px){
  .hdr-status{display:none}
  .hdr-upper__inner{grid-template-columns:auto auto;justify-content:space-between;padding-block:12px}
  .ftr-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ftr-legal{padding-block:16px 24px;font-size:11px}
}
@media (max-width:620px){
  .hdr-ruler{padding-inline:calc(var(--gutter) - 4px)}
  .hdr-ruler__tick{display:none}
  .hdr-actions{display:none}
  .nav-toggle{margin-left:auto}
  .brand__name{font-size:17px}
  .brand__eyebrow{font-size:9.5px;letter-spacing:.12em}
  .brand__mark{width:28px;height:28px}
  .brand__mark::after{inset:6px;border-width:2px}
  .ftr-cols{grid-template-columns:minmax(0,1fr);gap:26px}
  .ftr-col__title,
  .ftr-contact__title{font-size:11px}
  .prose{font-size:16px}
  .figure--portrait .figure__frame{aspect-ratio:3/4}
}
@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}
  .brk-progress__bar{transition:none}
}