/* ============ 1. RESET ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}

/* ============ 2. TOKENS ============ */
:root{
  --abyss:#05131F;
  --deep:#0A2233;
  --harbor:#123A50;
  --steel:#7C9AAA;
  --cyan:#35E0D0;
  --ice:#A6F4EA;
  --coral:#FF6B45;
  --coral-deep:#C93F22;
  --lime:#B6FF3C;
  --mist:#F2F7F7;

  --bg:var(--abyss);
  --surface:var(--deep);
  --surface-2:var(--harbor);
  --text:var(--mist);
  --text-muted:#9DB6C3;
  --line:rgba(124,154,170,.22);
  --line-strong:rgba(124,154,170,.42);

  --font-display:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:64px; --s7:88px; --s8:112px;

  --r-sm:10px; --r-md:18px; --r-lg:26px; --r-organic:34px 12px 34px 12px;
  --shadow-lift:0 24px 70px rgba(2,9,15,.55);
  --header-h:80px;
}

/* ============ 3. BASE ============ */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(120% 78% at 84% -12%, rgba(53,224,208,.12), transparent 58%),
    radial-gradient(90% 62% at 4% 4%, rgba(255,107,69,.08), transparent 60%),
    var(--abyss);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed; inset:0; z-index:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(242,247,247,.055) 1px, transparent 1px);
  background-size:3px 3px;
  opacity:.5;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;letter-spacing:-.02em;line-height:1.02;color:var(--mist)}
h1{font-size:clamp(40px,7vw,112px)}
h2{font-size:clamp(26px,3.4vw,48px);line-height:1.06}
h3{font-size:clamp(20px,2vw,26px);line-height:1.2}
h4{font-size:18px;line-height:1.3}
p{max-width:68ch}
strong,b{font-weight:800;color:var(--mist)}
::selection{background:var(--cyan);color:var(--abyss)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
#main-content{display:block}

/* ============ 4. UTILITIES ============ */
.shell{width:min(100% - 40px,1240px);margin-inline:auto}
.label{font-size:12px;letter-spacing:.12em;line-height:1.4;color:var(--steel);text-transform:uppercase}
.mono{font-family:var(--font-mono);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:.04em}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel);font-weight:600}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(182,255,60,.16)}
.prose{max-width:68ch}
.prose p + p{margin-top:1.2em}
.prose h2{margin-top:1.6em;margin-bottom:.5em}
.prose h3{margin-top:1.4em;margin-bottom:.4em}
.prose ul{list-style:none;display:grid;gap:10px;margin:1.2em 0}
.prose ul li{padding-left:20px;position:relative;color:var(--text-muted)}
.prose ul li::before{content:"";position:absolute;left:0;top:.75em;width:8px;height:2px;background:var(--cyan)}

/* ============ 5. SKIP LINK ============ */
.skip-link{
  position:fixed; top:-120px; left:16px; z-index:300;
  padding:12px 20px; border-radius:999px;
  background:var(--cyan); color:var(--abyss);
  font-weight:800; font-size:14px;
  transition:top .2s ease;
}
.skip-link:focus-visible,.skip-link:focus{top:14px;outline-offset:4px}

/* ============ 6. HEADER ============ */
.site-header{
  position:sticky; top:0; z-index:90;
  background:linear-gradient(180deg, rgba(5,19,31,.97), rgba(5,19,31,.86));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.status-strip{
  max-height:44px; overflow:hidden;
  background:linear-gradient(90deg, rgba(18,58,80,.92), rgba(10,34,51,.6));
  border-bottom:1px solid rgba(124,154,170,.14);
  transition:max-height .34s ease, opacity .24s ease, border-color .34s ease;
}
.status-strip__inner{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:7px 0; min-height:34px;
}
.status-strip__lead{
  display:flex; align-items:center; gap:9px;
  font-size:12.5px; letter-spacing:.08em; color:var(--ice); max-width:none;
}
.status-strip__meta{display:flex;align-items:center;gap:12px;font-size:11px;color:var(--steel);max-width:none}
.status-strip__rule{width:26px;height:1px;background:var(--line-strong);display:block}
.status-dot{
  width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;
  box-shadow:0 0 0 0 rgba(182,255,60,.55);
  animation:status-pulse 2.4s ease-out infinite;
}
@keyframes status-pulse{
  0%{box-shadow:0 0 0 0 rgba(182,255,60,.55)}
  70%{box-shadow:0 0 0 8px rgba(182,255,60,0)}
  100%{box-shadow:0 0 0 0 rgba(182,255,60,0)}
}
.site-header[data-condensed] .status-strip{max-height:0;opacity:0;border-bottom-color:transparent}

.nav-bar__inner{
  display:flex; align-items:center; gap:clamp(14px,2.4vw,40px);
  min-height:var(--header-h);
  padding-block:10px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:none;margin-right:auto}
.brand__mark{
  position:relative; width:38px; height:38px; flex:none;
  border-radius:12px 4px 12px 4px;
  background:linear-gradient(135deg, var(--cyan) 0%, var(--harbor) 58%, var(--deep) 100%);
  box-shadow:inset 0 0 0 1px rgba(166,244,234,.4), 0 6px 20px rgba(53,224,208,.18);
}
.brand__mark::after{
  content:""; position:absolute; right:-3px; bottom:-3px;
  width:12px; height:12px; border-radius:50%;
  background:var(--coral); box-shadow:0 0 0 3px rgba(5,19,31,.95);
}
.brand__type{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-family:var(--font-display);font-weight:900;font-size:18px;letter-spacing:.02em;color:var(--mist)}
.brand__meta{font-size:9.5px;letter-spacing:.2em;color:var(--steel);margin-top:2px}
.brand:hover .brand__name{color:var(--ice)}

.site-nav{display:flex;align-items:center;gap:clamp(10px,1.7vw,26px)}
.site-nav__head{display:none}
.site-nav__list{display:flex;align-items:center;gap:clamp(10px,1.7vw,26px)}
.site-nav__item{display:block}
.site-nav__link{
  position:relative; display:inline-flex; align-items:baseline; gap:6px;
  padding:8px 0; font-size:14.5px; font-weight:600; color:var(--text-muted);
  transition:color .22s ease; white-space:nowrap;
}
.site-nav__link::after{
  content:""; position:absolute; left:0; right:0; bottom:2px; height:2px;
  background:var(--cyan); transform:scaleX(0); transform-origin:left center;
  transition:transform .26s cubic-bezier(.22,1,.36,1);
}
.site-nav__link:hover{color:var(--mist)}
.site-nav__link:hover::after{transform:scaleX(1);background:var(--line-strong)}
.site-nav__num{font-size:10px;color:rgba(124,154,170,.72);letter-spacing:.08em}
.site-nav__link[aria-current="page"]{color:var(--cyan)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--coral)}
.site-nav__note{display:none}
.site-nav__cta{display:none}
.site-nav__close{display:none}

.header-cta{flex:none;padding:11px 20px;font-size:14px;margin-left:4px}

.nav-toggle{
  display:none; align-items:center; gap:10px; flex:none; margin-left:auto;
  padding:10px 14px; border-radius:999px;
  border:1px solid var(--line-strong); color:var(--mist);
  font-size:13px; font-weight:700; letter-spacing:.06em;
  transition:border-color .22s ease, background .22s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__icon{position:relative;width:18px;height:2px;background:currentColor;display:block;transition:background .2s ease}
.nav-toggle__icon::before,.nav-toggle__icon::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
  transition:transform .28s cubic-bezier(.22,1,.36,1);
}
.nav-toggle__icon::before{top:-6px}
.nav-toggle__icon::after{top:6px}
body.is-nav-open .nav-toggle__icon{background:transparent}
body.is-nav-open .nav-toggle__icon::before{transform:translateY(6px) rotate(45deg)}
body.is-nav-open .nav-toggle__icon::after{transform:translateY(-6px) rotate(-45deg)}

.header-progress{
  position:absolute; left:0; right:0; bottom:-1px; height:2px;
  background:rgba(53,224,208,.1); overflow:hidden;
}
.header-progress__bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg, var(--cyan), var(--lime) 62%, var(--coral));
  transform:scaleX(0); transform-origin:0 50%;
  will-change:transform;
}
.nav-scrim{
  position:fixed; inset:0; z-index:80;
  background:rgba(3,10,17,.68);
  opacity:0; visibility:hidden;
  transition:opacity .3s ease, visibility .3s ease;
}
.nav-scrim[data-open]{opacity:1;visibility:visible}

/* ============ 7. BUTTONS ============ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:13px 24px; border-radius:999px;
  font-family:var(--font-body); font-size:15px; font-weight:800; letter-spacing:.02em;
  border:1px solid transparent; cursor:pointer;
  transition:transform .22s cubic-bezier(.22,1,.36,1), background .22s ease, color .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--coral);color:var(--abyss);box-shadow:0 10px 28px rgba(255,107,69,.24)}
.btn--primary:hover{background:var(--coral-deep);color:var(--mist);box-shadow:0 14px 34px rgba(201,63,34,.32)}
.btn--ghost{border-color:var(--line-strong);color:var(--mist)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--cyan{background:var(--cyan);color:var(--abyss)}
.btn--cyan:hover{background:var(--ice)}
.btn--sm{padding:9px 16px;font-size:13px}

/* ============ 8. BREADCRUMBS ============ */
.breadcrumbs{margin:28px 0 8px}
.breadcrumbs__list{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--steel)}
.breadcrumbs__item{display:flex;align-items:center;gap:10px;letter-spacing:.02em}
.breadcrumbs__item + .breadcrumbs__item::before{content:"/";color:rgba(124,154,170,.5)}
.breadcrumbs__link{color:var(--steel);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.breadcrumbs__link:hover{color:var(--cyan);border-bottom-color:currentColor}
.breadcrumbs__item[aria-current="page"]{color:var(--mist);font-weight:600}

/* ============ 9. SECTIONS ============ */
.section{padding-block:clamp(48px,7vw,104px);position:relative}
.section--deep{background:linear-gradient(180deg, rgba(10,34,51,.92), rgba(5,19,31,.2))}
.section--harbor{background:linear-gradient(160deg, rgba(18,58,80,.9), rgba(10,34,51,.5))}
.section--light{background:var(--mist);color:var(--abyss)}
.section--light h2,.section--light h3{color:var(--abyss)}
.section--light p{color:#31505F}
.section--light .eyebrow{color:#476A7A}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:clamp(22px,3vw,40px)}
.section__title{max-width:22ch}
.section__lead{color:var(--text-muted);max-width:56ch;font-size:16.5px}
.section--light .section__lead{color:#3A5A6A}

/* ============ 10. BENTO ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(12px,1.6vw,22px)}
.bento__cell{
  grid-column:span 4;
  background:linear-gradient(155deg, rgba(18,58,80,.85), rgba(10,34,51,.6));
  border-radius:var(--r-lg);
  padding:clamp(18px,2.2vw,30px);
  position:relative; overflow:hidden;
  transition:transform .3s cubic-bezier(.22,1,.36,1), background .3s ease;
}
.bento__cell:hover{transform:translateY(-3px)}
.bento__cell--focus{grid-column:span 6;grid-row:span 2;background:radial-gradient(120% 100% at 90% 0%, rgba(53,224,208,.24), rgba(18,58,80,.9) 60%, rgba(10,34,51,.92))}
.bento__cell--wide{grid-column:span 8}
.bento__cell--half{grid-column:span 6}
.bento__cell--third{grid-column:span 4}
.bento__cell--full{grid-column:span 12}
.bento__cell--tall{grid-row:span 2}

/* ============ 11. MEDIA ============ */
.media{
  position:relative; overflow:hidden; border-radius:var(--r-lg);
  background:linear-gradient(155deg, var(--harbor), var(--deep) 70%, var(--abyss));
  aspect-ratio:16/10; isolation:isolate;
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__img{width:100%;height:100%;object-fit:cover;display:block}
.media__scrim{position:absolute;inset:0;background:linear-gradient(180deg, rgba(5,19,31,0) 40%, rgba(5,19,31,.82));z-index:1}
.media__caption{
  position:absolute; left:16px; right:16px; bottom:14px; z-index:2;
  font-size:12.5px; letter-spacing:.06em; color:var(--ice);
  display:flex; align-items:center; gap:8px;
}

/* ============ 12. STAT / TAG ============ */
.stat{display:flex;flex-direction:column;gap:6px}
.stat__num{
  font-family:var(--font-mono);font-weight:600;font-variant-numeric:tabular-nums;
  font-size:clamp(34px,5vw,72px);line-height:1;letter-spacing:-.02em;color:var(--ice);
}
.stat__label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--steel)}
.section--light .stat__num{color:var(--harbor)}
.section--light .stat__label{color:#4A6C7C}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  background:rgba(53,224,208,.12);color:var(--ice);border:1px solid rgba(53,224,208,.3);
}
.tag--coral{background:rgba(255,107,69,.14);color:#FFB49F;border-color:rgba(255,107,69,.34)}
.tag--live{background:rgba(182,255,60,.14);color:var(--lime);border-color:rgba(182,255,60,.36)}
.tag--live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}

/* ============ 13. TABS ============ */
.tabs{display:block}
.tabs__list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.tabs__btn{
  padding:10px 18px;border-radius:999px;
  border:1px solid var(--line-strong);
  font-size:14px;font-weight:700;color:var(--text-muted);
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.tabs__btn:hover{color:var(--mist);border-color:var(--cyan)}
.tabs__btn[aria-selected="true"]{background:var(--cyan);border-color:var(--cyan);color:var(--abyss)}
.tabs__panel{padding-top:4px}
.tabs__panel[hidden]{display:none}

/* ============ 14. REVEAL ============ */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .62s ease,transform .62s cubic-bezier(.22,1,.36,1)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ============ 15. FOOTER ============ */
.site-footer{
  position:relative;z-index:1;
  background:linear-gradient(180deg, var(--abyss), #030C14 78%);
  border-top:1px solid var(--line);
  color:var(--mist);
  margin-top:clamp(40px,6vw,96px);
}
.footer-main{padding-block:clamp(44px,6vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.5fr .85fr .85fr 1.15fr;gap:clamp(24px,4vw,56px)}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-brand__link{display:inline-flex;align-items:center;gap:11px}
.footer-brand__mark{
  position:relative;width:30px;height:30px;flex:none;
  border-radius:9px 3px 9px 3px;
  background:linear-gradient(135deg,var(--cyan),var(--harbor) 70%);
  box-shadow:inset 0 0 0 1px rgba(166,244,234,.35);
}
.footer-brand__mark::after{
  content:"";position:absolute;right:-2px;bottom:-2px;width:9px;height:9px;border-radius:50%;
  background:var(--coral);box-shadow:0 0 0 3px #05131F;
}
.footer-brand__name{font-family:var(--font-display);font-weight:900;font-size:17px;letter-spacing:.02em}
.footer-coord{font-size:11px;letter-spacing:.18em;color:var(--steel)}
.footer-tagline{font-family:var(--font-display);font-weight:900;font-size:clamp(20px,2.2vw,26px);line-height:1.24;letter-spacing:-.01em;color:var(--ice);max-width:14ch}
.footer-note{font-size:13px;line-height:1.7;color:var(--text-muted);max-width:34ch}
.footer-col{display:flex;flex-direction:column;gap:14px}
.footer-col__title{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel);font-family:var(--font-body);font-weight:700}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-block;font-size:14px;color:var(--text-muted);letter-spacing:.02em;
  border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.footer-link:hover{color:var(--cyan);border-bottom-color:currentColor}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact__item{display:flex;flex-direction:column;gap:2px}
.footer-contact__key{font-size:10px;letter-spacing:.18em;color:rgba(124,154,170,.8)}
.footer-contact__val{font-size:14px;color:var(--mist);line-height:1.5;word-break:break-word}
.footer-base{border-top:1px solid rgba(124,154,170,.16);background:rgba(3,10,17,.7)}
.footer-base__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-block:20px}
.footer-copyright{font-size:12.5px;color:var(--steel);letter-spacing:.04em;max-width:none}
.footer-icp{font-size:12px;letter-spacing:.1em;color:var(--steel)}

/* ============ 16. RESPONSIVE ============ */
@media (max-width:1279px){
  .site-nav__num{display:none}
}
@media (max-width:1080px){
  :root{--header-h:68px}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .brand__meta{display:none}
  .site-nav{
    position:fixed; left:12px; right:12px; bottom:12px; z-index:95;
    display:flex; flex-direction:column; align-items:stretch; gap:0;
    padding:18px 18px 22px;
    max-height:80vh; overflow-y:auto;
    border:1px solid var(--line-strong);
    border-radius:22px;
    background:linear-gradient(160deg, var(--harbor), var(--abyss) 58%);
    box-shadow:var(--shadow-lift);
    opacity:0; visibility:hidden;
    transform:translateY(calc(100% + 34px));
    transition:transform .44s cubic-bezier(.22,1,.36,1), opacity .3s ease, visibility .44s ease;
  }
  .site-nav[data-open]{opacity:1;visibility:visible;transform:translateY(0)}
  .site-nav__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:10px}
  .site-nav__eyebrow{display:block}
  .site-nav__close{
    display:inline-flex;align-items:center;
    padding:6px 14px;border-radius:999px;
    border:1px solid var(--line-strong);
    font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--steel);
    transition:color .2s ease,border-color .2s ease;
  }
  .site-nav__close:hover{color:var(--cyan);border-color:var(--cyan)}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    display:flex;align-items:baseline;gap:12px;
    padding:15px 6px;font-size:19px;font-weight:800;
    border-bottom:1px solid var(--line);
  }
  .site-nav__link::after{display:none}
  .site-nav__num{display:inline-block;font-size:11px;color:var(--steel)}
  .site-nav__link[aria-current="page"]{color:var(--cyan)}
  .site-nav__cta{display:inline-flex;margin-top:18px;width:100%}
  .site-nav__note{display:block;margin-top:14px;font-size:12px;color:var(--steel);line-height:1.6}
  .site-nav__note .mono{color:var(--ice);margin-right:8px}
  body.is-nav-open{overflow:hidden}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (min-width:1081px){
  .nav-scrim{display:none}
}
@media (max-width:900px){
  .bento__cell,.bento__cell--focus,.bento__cell--wide,.bento__cell--half,.bento__cell--third,.bento__cell--full{grid-column:span 12;grid-row:auto}
  .section__head{align-items:flex-start}
}
@media (max-width:720px){
  .shell{width:min(100% - 28px,1240px)}
  body{font-size:15.5px}
  .status-strip__meta{display:none}
  .status-strip__lead{font-size:12px}
  .brand__mark{width:32px;height:32px}
  .brand__name{font-size:16px}
  .nav-toggle__label{display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-base__inner{flex-direction:column;align-items:flex-start}
  .media--wide{aspect-ratio:16/10}
}
@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}
  .status-dot{animation:none}
  .btn:hover{transform:none}
}