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

:root{
  --ink:#06182C;
  --panel:#0B2742;
  --panel-2:#0E3355;
  --line:#17466B;
  --lime:#C8FF3D;
  --orange:#FF6B2C;
  --cool:#91A7BC;
  --white:#FFFFFF;
  --mist:#E6EEF6;
  --mint:#5FE3C0;
  --blue:#2E7CF6;

  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --shell:1280px;
  --gutter:clamp(16px,4vw,56px);
  --radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ========== 02. BASE TYPOGRAPHY ========== */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(23,70,107,.16) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(23,70,107,.12) 1px,transparent 1px);
  background-size:96px 96px,96px 96px;
  background-attachment:fixed;
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:clamp(15px,1.05vw,17px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.2;letter-spacing:-.01em;color:var(--white)}
strong{color:var(--white);font-weight:700}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:var(--radius)}

.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,6vw,88px)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px 28px;margin-bottom:clamp(20px,3vw,36px)}

/* ========== 03. SKIP LINK ========== */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  padding:10px 18px;
  background:var(--lime);color:var(--ink);
  font-size:13px;font-weight:700;letter-spacing:.04em;
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);outline:2px solid var(--white);outline-offset:2px}

/* ========== 04. HEADER ========== */
.site-header{
  position:sticky;top:0;z-index:100;
  color:var(--white);
  background-image:linear-gradient(180deg,rgba(6,24,44,.95),rgba(6,24,44,.62) 58%,rgba(6,24,44,0));
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header[data-scrolled]{
  background-color:rgba(8,31,54,.97);
  background-image:none;
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px rgba(2,10,20,.5);
}
.scroll-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(23,70,107,.4);
  pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--lime),var(--mint) 58%,var(--blue));
  transition:width .1s linear;
}

.header-meta{
  overflow:hidden;max-height:46px;opacity:1;
  border-bottom:1px solid rgba(23,70,107,.75);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.15em;color:var(--cool);
  transition:max-height .26s var(--ease),opacity .18s var(--ease),border-color .2s var(--ease);
}
.site-header[data-scrolled] .header-meta{max-height:0;opacity:0;border-bottom-color:transparent}
.header-meta__inner{
  display:flex;align-items:center;justify-content:space-between;gap:12px 24px;
  min-height:40px;padding-block:6px;flex-wrap:wrap;
}
.header-meta__note{display:flex;align-items:center;white-space:nowrap}
.header-meta__dot{
  width:6px;height:6px;margin-right:9px;flex:none;
  background:var(--lime);transform:rotate(45deg);
  animation:meta-pulse 2.6s var(--ease) infinite;
}
@keyframes meta-pulse{0%,100%{opacity:1}50%{opacity:.28}}
.header-meta__tag{color:rgba(145,167,188,.85)}
.header-meta__link{color:var(--lime);letter-spacing:.14em;border-bottom:1px solid transparent;transition:border-color .18s var(--ease),color .18s var(--ease)}
.header-meta__link:hover{border-bottom-color:var(--lime)}

.header-inner{
  display:flex;align-items:center;gap:clamp(12px,2vw,36px);
  min-height:74px;padding-block:10px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  position:relative;width:34px;height:34px;flex:none;
  background:linear-gradient(140deg,var(--lime) 0 52%,var(--orange) 52% 100%);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
}
.brand__mark::after{
  content:"";position:absolute;inset:6px;
  background:var(--ink);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__line{font-size:19px;font-weight:800;font-style:italic;letter-spacing:.01em;color:var(--white)}
.brand__tag{font-family:var(--font-mono);font-size:9px;letter-spacing:.22em;color:var(--lime);margin-top:4px}

.site-nav{display:flex;align-items:center;margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:clamp(2px,.8vw,10px)}
.site-nav__item{counter-increment:navidx}
.site-nav__link{
  position:relative;display:inline-block;
  padding:11px 10px;
  font-size:14px;font-weight:600;letter-spacing:.03em;
  color:rgba(230,238,246,.76);
  transition:color .18s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:4px;height:2px;
  background:var(--lime);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.site-nav__link:hover{color:var(--white)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--lime)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__foot{display:none}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  margin-left:auto;
  padding:9px 12px;
  border:1px solid var(--line);border-radius:var(--radius);
  color:var(--white);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__bars{position:relative;display:inline-block;width:18px;height:12px}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--lime);
  transition:top .2s var(--ease),transform .2s var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{top:10px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:5px;transform:rotate(-45deg)}

/* ========== 05. BUTTONS ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 20px;
  border:1px solid transparent;border-radius:var(--radius);
  font-size:14px;font-weight:700;letter-spacing:.05em;
  cursor:pointer;text-align:center;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn--primary{background:var(--lime);color:var(--ink)}
.btn--primary:hover{background:#d8ff72;transform:translateY(-2px);box-shadow:0 12px 24px rgba(200,255,61,.16)}
.btn--primary:focus-visible{outline-color:var(--white)}
.btn--ghost{background:transparent;color:var(--white);border-color:rgba(145,167,188,.45)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);background:rgba(200,255,61,.07)}
.btn--block{width:100%}

/* ========== 06. SHARED CONTENT COMPONENTS ========== */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  color:var(--lime);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor}

.index-tag{
  display:inline-block;
  padding:3px 9px;
  border:1px solid var(--line);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--cool);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(23,70,107,.28);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--cool);
}
.tag--lime{color:var(--ink);background:var(--lime);border-color:var(--lime)}
.tag--orange{color:var(--white);background:var(--orange);border-color:var(--orange)}

.card{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  background:linear-gradient(160deg,rgba(14,51,85,.92),rgba(6,24,44,.94));
  border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(200,255,61,.5);box-shadow:0 18px 36px rgba(2,10,20,.45)}

.stat{display:flex;flex-direction:column;gap:2px}
.stat__value{font-family:var(--font-mono);font-size:clamp(22px,3vw,30px);font-weight:700;color:var(--lime);letter-spacing:-.01em;line-height:1.1}
.stat__label{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--cool)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

.media-frame{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(145deg,var(--panel-2),var(--ink));
  isolation:isolate;
}
.media-frame__img{width:100%;height:100%;object-fit:cover}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x5{aspect-ratio:4/5}
.media-frame--halftone::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(6,24,44,.85) 1.1px,transparent 1.2px);
  background-size:5px 5px;
  opacity:.24;mix-blend-mode:multiply;
}

.diagonal-rule{
  height:2px;
  background:linear-gradient(90deg,rgba(23,70,107,.9),rgba(23,70,107,.05) 72%,transparent);
  transform:skewY(-.6deg);
}

.prose{max-width:760px;font-size:clamp(15px,1.05vw,17px);line-height:1.85;color:var(--mist)}
.prose h2{margin-top:2em;margin-bottom:.6em;font-size:clamp(21px,2.2vw,27px);font-weight:800;font-style:italic}
.prose h3{margin-top:1.6em;margin-bottom:.5em;font-size:clamp(17px,1.6vw,20px);font-weight:700}
.prose p{margin-bottom:1.1em}
.prose ul{margin-bottom:1.2em;padding-left:0}
.prose li{position:relative;padding-left:18px;margin-bottom:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--lime);transform:rotate(45deg)}
.prose a{color:var(--lime);border-bottom:1px solid rgba(200,255,61,.4)}

.breadcrumb{
  padding-block:13px;
  border-bottom:1px solid rgba(23,70,107,.55);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--cool);
}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item[aria-current="page"]{color:var(--white)}
.breadcrumb__link{color:var(--cool);transition:color .16s var(--ease)}
.breadcrumb__link:hover{color:var(--lime)}
.breadcrumb__sep{color:var(--line)}

/* ========== 07. MOTION HOOKS ========== */
[data-reveal].is-armed{opacity:0;transform:translateY(16px)}
[data-reveal].is-armed.is-visible{
  opacity:1;transform:none;
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:120;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;
  background:rgba(11,39,66,.95);
  border:1px solid var(--line);border-radius:var(--radius);
  color:var(--mist);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),border-color .18s var(--ease),color .18s var(--ease),visibility .2s;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--lime);color:var(--lime)}

/* ========== 08. FOOTER ========== */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,120px);
  padding-top:2px;
  background:linear-gradient(180deg,#08203A,var(--ink) 62%);
  border-top:1px solid var(--line);
  color:var(--mist);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(23,70,107,.3) 1px,transparent 1px);
  background-size:160px 100%;
  opacity:.6;
}
.footer-cut{
  position:relative;height:3px;
  background:linear-gradient(90deg,var(--lime) 0 20%,transparent 20% 22%,var(--orange) 22% 52%,transparent 52% 54%,var(--blue) 54% 100%);
}
.footer-top{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1.6fr);
  gap:clamp(26px,4vw,64px);
  padding-block:clamp(36px,5vw,64px) clamp(22px,3vw,40px);
}
.footer-brand__line{
  font-size:clamp(19px,2.2vw,26px);font-weight:800;font-style:italic;
  color:var(--white);letter-spacing:-.01em;line-height:1.25;
}
.footer-note{margin-top:14px;max-width:46ch;color:var(--cool);font-size:14px;line-height:1.8}
.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(14px,2.4vw,32px)}
.footer-col__title{
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  color:var(--lime);text-transform:uppercase;
}
.footer-list{margin-top:14px;display:grid;gap:9px}
.footer-link{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:rgba(230,238,246,.8);
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer-link::before{
  content:"";width:6px;height:6px;flex:none;
  background:var(--line);transform:rotate(45deg);
  transition:background-color .16s var(--ease);
}
.footer-link:hover{color:var(--lime);transform:translateX(3px)}
.footer-link:hover::before{background:var(--orange)}

.footer-contact{
  position:relative;z-index:1;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:16px 28px;
  padding-block:20px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.footer-contact__item{display:flex;flex-direction:column;gap:4px;min-width:0}
.footer-contact__key{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--cool)}
.footer-contact__value{font-size:14px;color:var(--white);word-break:break-word;line-height:1.6}
.footer-contact__note{grid-column:1/-1;font-size:12px;line-height:1.7;color:var(--cool)}

.footer-bottom{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 28px;
  padding-block:18px 28px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--cool);
}
.footer-legal{color:var(--cool)}
.footer-bottom__meta{color:rgba(145,167,188,.75);max-width:70ch}

/* ========== 09. RESPONSIVE ========== */
@media (max-width:1024px){
  .footer-top{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .header-actions{display:none}
  .header-inner{min-height:66px;flex-wrap:nowrap}

  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;
    margin-left:0;
    max-height:78vh;overflow-y:auto;
    padding:18px var(--gutter) 30px;
    background:linear-gradient(180deg,#082039,#06182C 78%);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px rgba(2,10,20,.55);
    counter-reset:navidx;
  }
  .site-nav[data-open]{display:flex}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__item{border-bottom:1px solid rgba(23,70,107,.55)}
  .site-nav__item:first-child{border-top:1px solid rgba(23,70,107,.55)}
  .site-nav__link{display:flex;align-items:baseline;gap:12px;padding:14px 2px;font-size:16px}
  .site-nav__link::before{
    content:counter(navidx,decimal-leading-zero);
    font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
    color:var(--cool);
  }
  .site-nav__link::after{left:34px;right:2px;bottom:8px}
  .site-nav__foot{display:grid;gap:10px;margin-top:22px}
}

@media (max-width:720px){
  .header-meta__tag{display:none}
  .header-meta__inner{justify-content:space-between}
  .brand__tag{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media (max-width:480px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-contact{gap:14px}
  .to-top{right:12px;bottom:12px;padding:9px 12px}
}

/* ========== 10. 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].is-armed{opacity:1;transform:none}
}