:root{
  --ink:#0B1220;
  --ink-2:#111C2E;
  --ink-3:#1E2B33;
  --cyan:#36E0D0;
  --cyan-soft:#A7F5EE;
  --gold:#E8B45A;
  --gold-deep:#8A6428;
  --silver:#F4F7F7;
  --mist:#DCE5E6;
  --karst:#7C8B8F;
  --line:rgba(124,139,143,.22);
  --line-strong:rgba(124,139,143,.38);
  --rail:88px;
  --container:1180px;
  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --font-serif:Georgia,"Times New Roman","Songti SC","Source Han Serif SC",serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
article,aside,footer,header,nav,section,main{display:block}

body{
  background:var(--ink);
  color:var(--silver);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6{line-height:1.14;font-weight:900;letter-spacing:-.01em}
strong,b{font-weight:800;color:var(--silver)}
em{font-style:normal}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

#main-content{display:block;scroll-margin-top:110px}

/* ---------- layout ---------- */
.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,40px);
}
.section{padding-block:clamp(46px,7vw,96px)}
.section--ink2{background:var(--ink-2)}
.section--silver{background:var(--silver);color:var(--ink)}
.section--silver .section-title,
.section--silver .display{color:var(--ink)}
.section--silver .lede,
.section--silver .prose p{color:#243244}
.section--silver .eyebrow{color:var(--gold-deep)}
.section--silver .chip{color:#2b3a44;border-color:rgba(11,18,32,.22)}
.section--silver .chip--cyan{color:#0d6b64;border-color:rgba(13,107,100,.34);background:rgba(54,224,208,.16)}
.section--silver .chip--gold{color:#7a5518;border-color:rgba(122,85,24,.3);background:rgba(232,180,90,.18)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:1fr}
.grid--3{grid-template-columns:1fr}
.grid--4{grid-template-columns:1fr}
@media (min-width:680px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
}
.rule{border:0;height:1px;background:linear-gradient(90deg,var(--line-strong),transparent);margin:0}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- type ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;font-weight:400;
  letter-spacing:.24em;text-transform:uppercase;color:var(--gold);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan);flex:0 0 auto}
.display{
  font-size:clamp(44px,6vw,88px);
  line-height:1.02;letter-spacing:-.03em;font-weight:900;color:var(--silver);
}
@media (max-width:520px){.display{font-size:34px;line-height:1.08}}
.section-title{font-size:clamp(30px,3.4vw,48px);line-height:1.08;letter-spacing:-.02em;color:var(--silver)}
.lede{font-size:clamp(16px,1.3vw,18px);line-height:1.8;color:var(--mist);max-width:64ch}
.prose>p{max-width:70ch;color:var(--mist);line-height:1.8}
.prose>p+p{margin-top:14px}
.prose h3{margin-top:28px;font-size:clamp(19px,2vw,24px);color:var(--silver)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 22px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn--primary{background:var(--cyan);color:#062220;box-shadow:0 14px 32px -18px rgba(54,224,208,.95)}
.btn--primary:hover{background:var(--cyan-soft);transform:translateY(-2px)}
.btn--line{border-color:rgba(54,224,208,.45);color:var(--cyan)}
.btn--line:hover{background:rgba(54,224,208,.1);color:var(--cyan-soft)}
.btn--ghost{border-color:rgba(220,229,230,.26);color:var(--silver)}
.btn--ghost:hover{border-color:rgba(220,229,230,.55);background:rgba(220,229,230,.06)}
.btn--gold{border-color:rgba(232,180,90,.45);color:var(--gold)}
.btn--gold:hover{background:rgba(232,180,90,.12);color:#f2cd8d}

/* ---------- chips / plates / panels / stats ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  border:1px solid var(--line-strong);color:var(--mist);white-space:nowrap;
}
.chip--cyan{color:var(--cyan);border-color:rgba(54,224,208,.4);background:rgba(54,224,208,.08)}
.chip--gold{color:var(--gold);border-color:rgba(232,180,90,.4);background:rgba(232,180,90,.08)}

.plate{
  position:relative;padding:22px 24px;border-radius:var(--radius-md);
  background:var(--ink-3);border:1px solid var(--line);
}
.plate--light{background:var(--silver);border-color:transparent;color:var(--ink)}

.panel{
  background:linear-gradient(160deg,var(--ink-2),var(--ink-3));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(20px,3vw,32px);
}

.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{
  font-family:var(--font-mono);font-weight:700;line-height:1;
  font-size:clamp(26px,3vw,40px);color:var(--cyan);letter-spacing:-.02em;
}
.stat__value--gold{color:var(--gold)}
.stat__label{font-size:13px;color:var(--karst);letter-spacing:.06em}

/* ---------- media containers ---------- */
.media{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    radial-gradient(120% 120% at 18% 0%,rgba(54,224,208,.16),transparent 62%),
    linear-gradient(160deg,var(--ink-2),var(--ink-3));
}
.media img{width:100%;height:100%;object-fit:cover;display:block}
.media--wide{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media--panorama{aspect-ratio:21/9}
.media__caption{
  margin-top:10px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.08em;color:var(--karst);
}
@media (max-width:640px){.media--panorama{aspect-ratio:16/9}}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{padding-block:18px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;color:var(--karst)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:rgba(124,139,143,.55)}
.breadcrumbs a:hover{color:var(--cyan-soft)}
.breadcrumbs [aria-current="page"]{color:var(--mist)}

/* ---------- skip link & progress ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:12px 20px;border-radius:var(--radius-pill);
  background:var(--cyan);color:#062220;font-weight:800;font-size:14px;
  transform:translateY(-160%);transition:transform .22s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:120;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-soft) 55%,var(--gold));
  pointer-events:none;
}

/* ---------- brand rail ---------- */
.brand-rail{display:none}
@media (min-width:1024px){
  body{padding-left:var(--rail)}
  .brand-rail{
    position:fixed;inset:0 auto 0 0;width:var(--rail);z-index:80;
    display:flex;flex-direction:column;align-items:center;gap:20px;
    padding:24px 10px 28px;
    background:linear-gradient(180deg,rgba(17,28,46,.98),rgba(11,18,32,.99));
    border-right:1px solid var(--line);
  }
  .brand-rail::after{
    content:"";position:absolute;inset:0 0 auto 0;height:2px;
    background:linear-gradient(90deg,var(--cyan),transparent);
  }
}
.brand-rail__mark{
  writing-mode:vertical-rl;font-size:16px;font-weight:900;letter-spacing:.3em;
  color:var(--silver);padding:8px 0;
}
.brand-rail__mark span{
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.24em;color:var(--cyan);
}
.brand-rail__spine{flex:1 1 auto;width:1px;background:linear-gradient(180deg,rgba(54,224,208,.5),rgba(124,139,143,.12))}
.brand-rail__state{
  writing-mode:vertical-rl;display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.3em;color:var(--karst);
}
.brand-rail__dot{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 4px rgba(54,224,208,.16);
}
.brand-rail__cta{
  width:100%;padding:12px 8px;font-size:12px;line-height:1.5;
  text-align:center;border-radius:14px;letter-spacing:.04em;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:14px;z-index:70;
  width:min(calc(100% - 32px),var(--container));
  margin:14px auto 0;
}
.site-header__inner{
  position:relative;display:flex;align-items:center;gap:14px;
  padding:10px 14px 10px 16px;
  border-radius:var(--radius-pill);
  background:rgba(17,28,46,.82);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(1.3);
  backdrop-filter:blur(16px) saturate(1.3);
  box-shadow:0 18px 42px -32px rgba(0,0,0,.95);
  transition:padding .28s var(--ease),background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-condensed .site-header__inner{
  padding:6px 12px 6px 14px;
  background:rgba(11,18,32,.95);
  box-shadow:0 22px 52px -30px rgba(0,0,0,1);
}

.site-brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--silver);flex:0 0 auto;
}
.site-brand__glyph{
  position:relative;width:28px;height:28px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--cyan),#1b8d86 72%);
  box-shadow:inset 0 0 0 1px rgba(244,247,247,.36);
}
.site-brand__glyph::after{
  content:"";position:absolute;inset:7px;border-radius:4px;
  border:1px solid rgba(6,34,32,.55);
}
.site-brand__text{
  display:flex;flex-direction:column;line-height:1.06;
  font-size:17px;font-weight:900;letter-spacing:.04em;
}
.site-brand__text em{
  font-family:var(--font-mono);font-size:10px;font-weight:400;
  letter-spacing:.16em;color:var(--karst);margin-top:4px;
}
.site-brand--footer{margin-bottom:16px}
.site-brand--footer .site-brand__text{font-size:18px}

.nav-toggle{
  display:inline-flex;align-items:center;gap:9px;margin-left:auto;
  min-height:44px;padding:10px 16px;border-radius:var(--radius-pill);
  border:1px solid rgba(220,229,230,.24);color:var(--silver);
  font-size:13px;letter-spacing:.1em;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:rgba(54,224,208,.55);background:rgba(54,224,208,.08)}
.nav-toggle__bars{position:relative;width:16px;height:2px;border-radius:2px;background:currentColor;transition:background .2s var(--ease)}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;
  background:currentColor;transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}
.nav-toggle__text{white-space:nowrap}

.primary-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
.primary-nav__list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.primary-nav__list a{
  display:inline-flex;align-items:center;padding:9px 14px;
  border-radius:var(--radius-pill);font-size:15px;color:var(--mist);
  transition:color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.primary-nav__list a:hover{color:var(--cyan-soft);background:rgba(54,224,208,.08)}
.primary-nav__list a[aria-current="page"]{
  color:var(--cyan);font-weight:700;
  background:rgba(54,224,208,.12);
  box-shadow:inset 0 0 0 1px rgba(54,224,208,.34);
}
.primary-nav__cta{display:none}

@media (min-width:1024px){
  .nav-toggle{display:none}
}

@media (max-width:1023.98px){
  .site-header{top:10px;width:calc(100% - 24px);margin-top:10px}
  .site-header__inner{padding:8px 12px 8px 14px;gap:10px}
  .primary-nav{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:10px;margin-left:0;
    padding:12px;border-radius:26px;
    background:rgba(11,18,32,.97);
    border:1px solid rgba(124,139,143,.26);
    box-shadow:0 32px 70px -34px rgba(0,0,0,1);
    opacity:0;visibility:hidden;transform:translateY(-10px) scale(.99);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  }
  .primary-nav[data-open]{
    opacity:1;visibility:visible;transform:translateY(0) scale(1);
  }
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:4px}
  .primary-nav__list a{
    padding:14px 16px;border-radius:16px;font-size:16.5px;
    border:1px solid transparent;
  }
  .primary-nav__list a[aria-current="page"]{box-shadow:inset 0 0 0 1px rgba(54,224,208,.34)}
  .primary-nav__cta{display:inline-flex;width:100%;margin-top:6px}
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(56px,8vw,110px);
  padding-top:clamp(38px,5vw,64px);
  background:var(--ink-2);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),transparent 42%,var(--gold-deep) 72%,transparent);
}
.site-footer__inner{
  display:grid;grid-template-columns:1fr;gap:clamp(26px,4vw,52px);
  padding-bottom:clamp(26px,4vw,44px);
}
@media (min-width:680px){
  .site-footer__inner{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}
@media (min-width:1024px){
  .site-footer__inner{grid-template-columns:minmax(0,1.45fr) repeat(3,minmax(0,1fr))}
  .footer-brand{grid-column:auto}
}

.footer-brand__meta{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--karst);margin-bottom:20px;
}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact li{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14.5px}
.footer-contact__key{
  flex:0 0 auto;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--karst);padding-top:2px;min-width:56px;
}
.footer-contact__val{color:var(--silver);word-break:break-word}
.copy-btn{
  padding:3px 10px;border-radius:var(--radius-pill);
  border:1px solid rgba(54,224,208,.38);color:var(--cyan);
  font-size:11px;letter-spacing:.1em;font-family:var(--font-mono);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.copy-btn:hover{background:rgba(54,224,208,.12);color:var(--cyan-soft)}
.copy-btn.is-copied{background:var(--cyan);color:#062220;border-color:var(--cyan)}

.footer-col__title{
  font-family:var(--font-mono);font-size:11.5px;font-weight:400;
  letter-spacing:.24em;text-transform:uppercase;color:var(--gold);
  margin-bottom:16px;
}
.footer-col__list{display:flex;flex-direction:column;gap:10px}
.footer-col__list a{
  font-size:15px;color:var(--mist);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-col__list a:hover{color:var(--cyan-soft);border-color:rgba(167,245,238,.5)}

.footer-note{padding-bottom:clamp(22px,3vw,34px)}
.footer-note p{
  max-width:78ch;font-size:13px;line-height:1.8;color:var(--karst);
  border-left:2px solid rgba(232,180,90,.5);padding-left:14px;
}

.site-footer__legal{border-top:1px solid var(--line);background:var(--ink)}
.site-footer__legal-inner{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;
  padding-block:20px;
}
.site-footer__legal-inner p{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--karst);
}

/* ---------- reveal ---------- */
.js-ready [data-reveal]{
  opacity:0;transform:translateY(20px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity,transform;
}
.js-ready [data-reveal].is-visible{opacity:1;transform:none}

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