/* ===== 1. Design Tokens ===== */
:root {
  --rail-w: 292px;
  --header-h: 68px;
  --color-bg: #0B1B3D;
  --color-bg-deep: #071126;
  --color-bg-card: #0E1F3F;
  --color-border: #1E3A5F;
  --color-accent: #39FF14;
  --color-accent-soft: rgba(57,255,20,.12);
  --color-silver: #C0C0C0;
  --color-text: #E8F0FF;
  --color-text-dim: #8B9BB4;
  --color-warn: #FFC857;
  --font-display: 'Oswald','Impact','Noto Sans SC','PingFang SC',sans-serif;
  --font-body: 'Inter','PingFang SC','Microsoft YaHei',sans-serif;
  --font-editorial: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
  --font-data: 'Oswald','DIN Alternate','Roboto Mono','SFMono-Regular',monospace;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ===== 2. Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box}
html{line-height:1.7;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  overflow-x:hidden;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  color:var(--color-text);
  background:
    radial-gradient(1100px 500px at 100% -10%, rgba(57,255,20,.055), transparent 55%),
    radial-gradient(900px 480px at -10% 110%, rgba(57,255,20,.04), transparent 50%),
    var(--color-bg);
  -webkit-font-smoothing:antialiased;
}
body[data-nav-open]{overflow:hidden}
h1,h2,h3,h4,h5,h6{
  margin:0 0 .6em;
  font-family:var(--font-display);
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.03em;
  color:var(--color-text);
  line-height:1.05;
}
p{margin:0 0 1em}
a{color:var(--color-accent);text-decoration:none}
a:hover{color:#7aff5f}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px;border-radius:4px}
::selection{background:rgba(57,255,20,.28);color:var(--color-text)}
img,svg,video{display:block;max-width:100%}
ul,ol{margin:0 0 1em;padding-left:1.4em}
code,kbd,samp{font-family:var(--font-data);font-size:.92em}
pre{
  background:var(--color-bg-deep);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  padding:18px;
  overflow-x:auto;
  font-family:var(--font-data);
  font-size:14px;
  line-height:1.6;
}
.sr-only{
  position:absolute;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ===== 3. Layout Helpers ===== */
.container{width:min(1280px, calc(100% - 48px));margin-inline:auto}
#main-content{display:block;margin-left:var(--rail-w);min-height:80vh}
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.grid-cols-2,.grid-cols-3,.grid-cols-4{display:grid;gap:24px}
.grid-cols-2{grid-template-columns:repeat(2,1fr)}
.grid-cols-3{grid-template-columns:repeat(3,1fr)}
.grid-cols-4{grid-template-columns:repeat(4,1fr)}
.text-dim{color:var(--color-text-dim)}

/* ===== 4. Skip Link ===== */
.skip-link{
  position:fixed;top:-140px;left:24px;z-index:5000;
  padding:14px 26px;
  background:var(--color-accent);
  color:var(--color-bg-deep);
  font-weight:700;
  border-radius:var(--radius-pill);
  text-decoration:none;
  box-shadow:0 0 24px rgba(57,255,20,.4);
  transition:top .25s var(--ease);
}
.skip-link:focus{top:16px;color:var(--color-bg-deep)}

/* ===== 5. Header & Side Rail ===== */
.site-header{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail-w);
  z-index:1200;
  display:flex;
  flex-direction:column;
  background:var(--color-bg);
  border-right:1px solid var(--color-border);
}
.site-header__bar{
  padding:30px 26px 22px;
  border-bottom:1px solid rgba(30,58,95,.45);
}
.brand{
  display:inline-flex;align-items:center;gap:14px;
  color:var(--color-text);text-decoration:none;
}
.brand__mark{
  flex:0 0 auto;width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:14px;
  background:var(--color-accent);
  color:var(--color-bg-deep);
  font-family:var(--font-display);
  font-weight:700;font-size:18px;letter-spacing:.04em;
  box-shadow:0 0 18px rgba(57,255,20,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text strong{
  font-family:var(--font-display);
  font-size:17px;letter-spacing:.1em;text-transform:uppercase;
}
.brand__slogan{
  font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--color-text-dim);margin-top:3px;
}

/* ===== 6. Navigation ===== */
.nav-toggle{display:none}
.site-nav{
  flex:1;display:flex;flex-direction:column;
  min-height:0;overflow-y:auto;
  padding:6px 14px 18px;
}
.site-nav__head{display:none}
.nav-list{
  list-style:none;margin:0;padding:18px 0 0;
  display:flex;flex-direction:column;gap:4px;
}
.nav-list__item{margin:0}
.nav-list__link{
  display:flex;align-items:center;gap:14px;
  padding:11px 13px;
  border-radius:12px;
  font-size:15px;font-weight:600;
  color:var(--color-text-dim);
  text-decoration:none;
  transition:color .2s,background .2s,transform .2s var(--ease);
}
.nav-list__link::before{
  content:'';width:6px;height:6px;border-radius:50%;
  background:var(--color-border);flex:0 0 auto;
  transition:background .2s,box-shadow .2s;
}
.nav-list__index{
  margin-left:auto;
  font-family:var(--font-data);
  font-size:11px;letter-spacing:.08em;
  color:var(--color-border);
  transition:color .2s;
}
.nav-list__link:hover{
  color:var(--color-text);
  background:rgba(30,58,95,.3);
  transform:translateX(4px);
}
.nav-list__link:hover::before{background:var(--color-silver)}
.nav-list__link:hover .nav-list__index{color:var(--color-silver)}
.nav-list__link[aria-current='page']{
  color:var(--color-accent);
  background:var(--color-accent-soft);
}
.nav-list__link[aria-current='page']::before{
  background:var(--color-accent);
  box-shadow:0 0 10px rgba(57,255,20,.65);
}
.nav-list__link[aria-current='page'] .nav-list__index{color:var(--color-accent)}
.site-nav__meta{
  margin-top:auto;
  padding:20px 10px 0;
  border-top:1px solid rgba(30,58,95,.5);
  display:flex;flex-direction:column;gap:8px;
}
.site-nav__meta-text{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;color:var(--color-text-dim);
}
.site-nav__meta-text::before{
  content:'';width:5px;height:5px;border-radius:50%;
  background:var(--color-accent);
  box-shadow:0 0 8px rgba(57,255,20,.6);
}
.nav-overlay{display:none}
.nav-close{
  display:grid;place-items:center;
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--color-border);
  background:transparent;cursor:pointer;position:relative;
  transition:border-color .2s;
}
.nav-close__line{
  position:absolute;width:16px;height:2px;border-radius:2px;
  background:var(--color-text);
  transition:background .2s;
}
.nav-close__line:nth-child(1){transform:rotate(45deg)}
.nav-close__line:nth-child(2){transform:rotate(-45deg)}
.nav-close:hover{border-color:var(--color-accent)}
.nav-close:hover .nav-close__line{background:var(--color-accent)}

/* ===== 7. Footer ===== */
.site-footer{
  margin-left:var(--rail-w);
  position:relative;
  background:var(--color-bg-deep);
  border-top:1px solid var(--color-border);
  color:var(--color-text-dim);
}
.site-footer__inner{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,.8fr) minmax(0,.8fr) minmax(0,1.1fr);
  gap:clamp(24px,4vw,56px);
  padding:56px 0 48px;
}
.site-footer__brand .brand{margin-bottom:4px}
.brand--footer .brand__mark{
  width:40px;height:40px;border-radius:12px;
  font-size:15px;box-shadow:none;
}
.brand--footer .brand__text strong{font-size:15px}
.site-footer__slogan{
  font-family:var(--font-editorial);
  font-size:15px;line-height:1.6;
  color:var(--color-silver);
  margin:14px 0 10px;
}
.site-footer__trust{
  font-size:13px;line-height:1.85;max-width:52ch;margin:0;
  color:var(--color-text-dim);
}
.site-footer__heading{
  font-family:var(--font-display);
  font-size:13px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--color-silver);
  margin:0 0 16px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(30,58,95,.55);
}
.site-footer__list{
  list-style:none;margin:0;padding:0;
  display:flex;flex-direction:column;gap:10px;
}
.site-footer__link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--color-text-dim);text-decoration:none;
  transition:color .2s;
}
.site-footer__link::before{
  content:'';width:4px;height:4px;border-radius:50%;
  background:var(--color-border);
  transition:background .2s,box-shadow .2s;
}
.site-footer__link:hover{color:var(--color-accent)}
.site-footer__link:hover::before{
  background:var(--color-accent);
  box-shadow:0 0 8px rgba(57,255,20,.5);
}
.site-footer__contact-item{margin:0 0 8px;font-size:14px;color:var(--color-text-dim)}
.site-footer__bottom{border-top:1px solid rgba(30,58,95,.5)}
.site-footer__bottom-inner{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:8px 20px;
  padding:18px 0;
  font-size:12px;color:var(--color-text-dim);
}
.site-footer__bottom p{margin:0}
.site-footer__bottom a{color:var(--color-text-dim);text-decoration:none}
.site-footer__bottom a:hover{color:var(--color-accent)}

/* ===== 8. Buttons ===== */
.btn-primary,.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 28px;
  border-radius:var(--radius-pill);
  font-family:var(--font-body);
  font-size:14px;font-weight:700;letter-spacing:.06em;
  line-height:1.2;
  text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s,border-color .2s,background .2s,color .2s;
}
.btn-primary{
  background:var(--color-accent);
  color:var(--color-bg-deep);
  box-shadow:0 2px 0 rgba(57,255,20,.25);
}
.btn-primary:hover{
  box-shadow:0 0 24px rgba(57,255,20,.4);
  transform:translateY(-2px);
  color:var(--color-bg-deep);
}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--color-silver);color:var(--color-silver);background:transparent}
.btn-outline:hover{
  border-color:var(--color-accent);color:var(--color-accent);
  box-shadow:0 0 16px rgba(57,255,20,.18);
  transform:translateY(-2px);
}
.btn-outline:active{transform:translateY(0)}

/* ===== 9. Breadcrumb ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:4px;
  list-style:none;margin:0;padding:0;
  font-size:13px;letter-spacing:.03em;
}
.breadcrumb__item{
  display:inline-flex;align-items:center;gap:4px;
  color:var(--color-text-dim);
}
.breadcrumb__item + .breadcrumb__item::before{
  content:'›';color:var(--color-border);
  font-size:15px;line-height:1;padding:0 4px;
}
.breadcrumb__item[aria-current='page']{color:var(--color-text)}
.breadcrumb a{color:var(--color-silver);text-decoration:none;transition:color .2s}
.breadcrumb a:hover{color:var(--color-accent)}

/* ===== 10. Editorial & Hero ===== */
.section-label{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-display);
  font-size:13px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--color-accent);
  margin:0 0 18px;
}
.section-label::before{
  content:'';width:12px;height:12px;
  background:var(--color-accent);
  clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);
  box-shadow:0 0 10px rgba(57,255,20,.5);
}
.display-title{
  font-family:var(--font-display);
  font-weight:700;text-transform:uppercase;letter-spacing:.02em;
  font-size:clamp(32px,5vw,60px);
  line-height:1;margin:0 0 16px;
  color:var(--color-text);
}
.section-lead{
  font-family:var(--font-editorial);
  font-size:clamp(16px,2vw,19px);
  line-height:1.85;
  color:var(--color-silver);
  border-left:3px solid var(--color-accent);
  padding-left:20px;
  margin:0 0 30px;
  max-width:62ch;
}
.hero-cover{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(28px,5vw,72px);
  align-items:end;
  padding:clamp(44px,7vw,92px) 0 clamp(44px,7vw,84px);
}
.hero-cover::before{
  content:'';
  position:absolute;right:0;bottom:0;
  width:44%;height:56%;
  background:linear-gradient(150deg,transparent 35%,rgba(57,255,20,.07) 100%);
  clip-path:polygon(12% 0,100% 0,100% 100%,0 100%);
  pointer-events:none;
}
.hero-cover > *{position:relative;z-index:1}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-display);
  font-size:13px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--color-accent);
  margin:0 0 18px;
}
.hero-kicker::before{
  content:'';width:26px;height:2px;
  background:var(--color-accent);
  box-shadow:0 0 10px rgba(57,255,20,.55);
}
.hero-title{
  font-family:var(--font-display);
  font-weight:700;text-transform:uppercase;letter-spacing:.02em;
  font-size:clamp(42px,7vw,86px);
  line-height:.95;margin:0 0 22px;
  color:var(--color-text);
}
.hero-title em{font-style:normal;color:var(--color-accent)}
.hero-lede{
  font-family:var(--font-editorial);
  font-size:clamp(16px,2vw,20px);
  line-height:1.85;
  color:var(--color-silver);
  max-width:46ch;margin:0 0 30px;
}
.hero-index{
  list-style:none;margin:0;padding:0;
  display:flex;flex-direction:column;gap:12px;
  border-left:1px solid var(--color-border);
  align-self:stretch;justify-content:flex-end;
}
.hero-index__item{padding-left:22px;position:relative}
.hero-index__item::before{
  content:'';position:absolute;left:-4px;top:50%;
  width:7px;height:7px;border-radius:50%;
  background:var(--color-border);
  transform:translateY(-50%);
  transition:background .2s,box-shadow .2s;
}
.hero-index__item a{
  display:block;
  color:var(--color-text-dim);
  font-size:14px;text-decoration:none;
  transition:color .2s;
}
.hero-index__item a:hover{color:var(--color-accent)}
.hero-index__item--active::before{
  background:var(--color-accent);
  box-shadow:0 0 10px rgba(57,255,20,.55);
}
.hero-index__item--active a{color:var(--color-text)}

/* ===== 11. Chapter ===== */
.chapter-block{
  position:relative;
  padding:64px 0 8px;
  margin-top:40px;
  border-top:1px solid var(--color-border);
}
.chapter-block__header{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  margin-bottom:34px;
}
.chapter-block__title{
  font-family:var(--font-display);
  font-size:clamp(24px,3.5vw,40px);
  text-transform:uppercase;letter-spacing:.04em;
  margin:0;color:var(--color-text);line-height:1;
}
.chapter-block__desc{margin:6px 0 0;font-size:14px;color:var(--color-text-dim)}
.chapter-index{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(48px,7vw,82px);
  line-height:.8;
  color:transparent;
  -webkit-text-stroke:1px rgba(57,255,20,.55);
  flex:0 0 auto;
}

/* ===== 12. Data & Cards ===== */
.data-grid{
  display:grid;
  grid-template-columns:repeat(var(--data-cols,3),1fr);
  gap:18px;
}
.data-card{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;gap:6px;
  background:var(--color-bg-card);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:24px;
  transition:border-color .25s,transform .25s var(--ease);
}
.data-card::after{
  content:'';position:absolute;top:0;right:0;
  width:64px;height:64px;
  background:repeating-linear-gradient(45deg,transparent 0 6px,rgba(57,255,20,.07) 6px 7px,transparent 7px 14px);
  pointer-events:none;
}
.data-card:hover{border-color:rgba(57,255,20,.5);transform:translateY(-3px)}
.data-card__title{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--color-text-dim);margin:0 0 8px;
}
.data-card__note{font-size:12px;color:var(--color-text-dim);margin-top:auto}
.metric{display:flex;flex-direction:column}
.metric__label{
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--color-text-dim);margin-bottom:4px;
}
.metric__value{
  font-family:var(--font-data);
  font-weight:700;
  font-size:clamp(30px,4vw,46px);
  line-height:1;
  color:var(--color-accent);
  font-variant-numeric:tabular-nums;
}
.metric__value small{
  font-family:var(--font-body);
  font-size:.5em;font-weight:600;letter-spacing:.04em;
  color:var(--color-silver);
}
.card-panel{
  background:var(--color-bg-card);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:26px;
}
.divider-line{
  height:1px;border:0;margin:36px 0;
  background:linear-gradient(90deg,transparent,var(--color-border) 22%,var(--color-border) 78%,transparent);
}

/* ===== 13. Pills & Tags ===== */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 15px;
  border-radius:var(--radius-pill);
  border:1px solid var(--color-border);
  background:transparent;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--color-silver);
  text-decoration:none;white-space:nowrap;
}
.pill--accent{
  border-color:rgba(57,255,20,.5);
  color:var(--color-accent);
  background:var(--color-accent-soft);
}
.pill--warn{
  border-color:rgba(255,200,87,.5);
  color:var(--color-warn);
}

/* ===== 14. Image Frame ===== */
.image-frame{
  position:relative;overflow:hidden;
  display:block;
  border-radius:var(--radius-lg);
  border:1px solid var(--color-border);
  background:var(--color-bg-card);
}
.image-frame img{
  position:absolute;inset:0;
  width:100%;height:100%;object-fit:cover;
}
.image-frame__fallback{
  position:absolute;inset:0;
  display:grid;place-items:center;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--color-text-dim);
  background:repeating-linear-gradient(-45deg,var(--color-bg-card) 0 14px,rgba(30,58,95,.28) 14px 16px,var(--color-bg-card) 16px 40px);
}
.ratio-16x9{aspect-ratio:16/9}
.ratio-4x3{aspect-ratio:4/3}
.ratio-1x1{aspect-ratio:1}

/* ===== 15. Prose ===== */
.prose{
  max-width:72ch;
  font-size:16px;line-height:1.9;
  color:var(--color-text);
}
.prose > *:first-child{margin-top:0}
.prose h2{
  font-family:var(--font-display);
  font-size:28px;text-transform:uppercase;letter-spacing:.04em;
  margin:48px 0 16px;
  padding-top:22px;
  border-top:1px solid var(--color-border);
}
.prose h3{
  font-family:var(--font-display);
  font-size:20px;text-transform:uppercase;letter-spacing:.04em;
  margin:30px 0 12px;
}
.prose p{margin:0 0 18px}
.prose a{color:var(--color-accent);text-decoration:underline;text-underline-offset:4px}
.prose ul,.prose ol{padding-left:24px;margin:0 0 18px}
.prose li{margin-bottom:6px}
.prose blockquote{
  margin:26px 0;
  padding:16px 22px;
  border-left:3px solid var(--color-accent);
  background:var(--color-bg-card);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  font-family:var(--font-editorial);
  font-size:17px;color:var(--color-silver);
}
.prose table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14px}
.prose th,.prose td{
  padding:10px 14px;
  border:1px solid var(--color-border);
  text-align:left;
  font-variant-numeric:tabular-nums;
}
.prose th{
  font-family:var(--font-display);
  text-transform:uppercase;letter-spacing:.08em;
  font-size:13px;
  background:var(--color-bg-card);
  color:var(--color-silver);
}
.prose code{
  font-family:var(--font-data);
  font-size:.9em;
  background:var(--color-bg-deep);
  padding:2px 8px;
  border-radius:6px;
  border:1px solid var(--color-border);
}
.prose pre code{background:transparent;border:0;padding:0}

/* ===== 16. Scroll Progress & Reveal ===== */
body::before{
  content:'';
  position:fixed;top:0;left:var(--rail-w);
  height:3px;
  width:var(--scroll-p,0%);
  background:linear-gradient(90deg,var(--color-accent),#7aff5f);
  box-shadow:0 0 12px rgba(57,255,20,.5);
  z-index:2000;
  pointer-events:none;
}
html.js .reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  transition-delay:var(--reveal-delay,0s);
  will-change:opacity,transform;
}
html.js .reveal.is-visible{opacity:1;transform:none}

/* ===== 17. Mobile / Tablet ===== */
@media (max-width:1023px){
  .site-header{
    bottom:auto;width:100%;height:var(--header-h);
    border-right:0;
    border-bottom:1px solid var(--color-border);
    background:rgba(11,27,61,.96);
  }
  .site-header__bar{
    height:100%;padding:0 18px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    border-bottom:0;
  }
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:8px 2px;
    background:transparent;border:0;cursor:pointer;
    color:var(--color-text);
  }
  .nav-toggle__box{display:flex;flex-direction:column;gap:5px;width:22px}
  .nav-toggle__line{
    display:block;height:2px;width:100%;
    background:var(--color-accent);
    border-radius:2px;
    transition:transform .3s var(--ease),opacity .2s;
  }
  .nav-toggle__text{
    font-size:10px;letter-spacing:.16em;text-transform:uppercase;
    color:var(--color-text-dim);
  }
  .nav-toggle[aria-expanded='true'] .nav-toggle__line:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded='true'] .nav-toggle__line:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded='true'] .nav-toggle__line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-overlay{
    display:block;
    position:fixed;inset:0;
    background:rgba(7,17,38,.72);
    opacity:0;pointer-events:none;
    transition:opacity .3s var(--ease);
    z-index:5;
  }
  .nav-overlay[data-open]{opacity:1;pointer-events:auto}
  .site-nav{
    position:fixed;top:0;left:0;bottom:0;
    width:min(320px,86vw);
    padding:0 16px 22px;
    transform:translateX(-106%);
    transition:transform .34s var(--ease);
    z-index:10;
    border-right:1px solid var(--color-border);
    box-shadow:20px 0 40px rgba(7,17,38,.5);
  }
  .site-nav[data-open]{transform:translateX(0)}
  .site-nav__head{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 8px 14px;
    border-bottom:1px solid rgba(30,58,95,.55);
  }
  .site-nav__edition{
    font-family:var(--font-data);
    font-size:12px;letter-spacing:.18em;text-transform:uppercase;
    color:var(--color-silver);
  }
  .nav-list{padding-top:14px}
  .nav-list__link{padding:13px 14px}
  #main-content{margin-left:0;padding-top:var(--header-h)}
  .site-footer{margin-left:0}
  .body::before,body::before{left:0}
  .site-footer__inner{
    grid-template-columns:1fr 1fr;
    gap:36px 28px;
    padding:44px 0;
  }
  .hero-cover{grid-template-columns:1fr;align-items:start}
  .hero-cover::before{width:70%;height:34%;top:0}
  .hero-index{align-self:auto}
  .data-grid{--data-cols:2}
  .grid-12{grid-template-columns:repeat(6,1fr)}
  .grid-cols-4{grid-template-columns:repeat(2,1fr)}
  .grid-cols-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .container{width:min(100% - 28px,1280px)}
  .brand__slogan{display:none}
  .site-footer__inner{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .site-footer__bottom-inner{flex-direction:column;align-items:flex-start}
  .grid-12{grid-template-columns:1fr}
  .grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}
  .data-grid{--data-cols:1}
}

/* ===== 18. Reduced Motion ===== */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
  html.js .reveal{opacity:1;transform:none;transition:none}
  .site-nav,.nav-overlay,.nav-toggle__line{transition:none}
}