:root{
  --c-primary:#0B1E3A;
  --c-primary-alt:#102A4A;
  --c-yellow:#FFD700;
  --c-green:#39FF14;
  --c-cyan:#00E5FF;
  --c-light:#F2F4F8;
  --c-text:#0B0E14;
  --c-muted:#5B6B7A;
  --c-white:#FFFFFF;
  --rail-width:264px;
  --topbar-height:68px;
  --radius-panel:28px 8px 28px 8px;
  --radius-card:20px 6px 20px 6px;
  --font-head:"DIN Condensed","Arial Narrow",Impact,sans-serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --font-num:"Roboto Mono",Consolas,monospace;
  --shadow-1:0 18px 48px rgba(11,30,58,.14);
  --shadow-2:0 10px 30px rgba(3,12,26,.18);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  background:var(--c-light);
  color:var(--c-text);
  line-height:1.75;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  padding-left:var(--rail-width);
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto}
ul,ol{list-style:none}
a{color:var(--c-cyan);text-decoration:none}
a:hover{text-decoration:underline}
button{background:transparent;border:0;font:inherit;cursor:pointer}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:800;line-height:1.12;color:var(--c-primary);text-wrap:balance}
h1{font-size:clamp(2.6rem,5.4vw,4.8rem)}
h2{font-size:clamp(1.9rem,3.4vw,3.2rem)}
h3{font-size:1.35rem}
p{max-width:62ch}
:focus-visible{outline:3px solid var(--c-yellow);outline-offset:3px;border-radius:4px}
[hidden]{display:none!important}

.site-main{flex:1 0 auto;width:100%}
#main-content{scroll-margin-top:calc(var(--topbar-height) + 16px);outline:none}
.container{max-width:1200px;margin-inline:auto;padding-inline:24px;width:100%}

.skip-link{
  position:fixed;top:16px;left:16px;z-index:120;
  padding:10px 20px;border-radius:999px;
  background:var(--c-yellow);color:var(--c-primary);
  font-weight:800;box-shadow:var(--shadow-2);
  transform:translateY(-220%);transition:transform .2s ease;
}
.skip-link:focus{transform:translateY(0);text-decoration:none}

.site-header{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--rail-width);z-index:60;
  padding:28px 16px;
  display:flex;flex-direction:column;
  background:linear-gradient(150deg,#0D2240 0%,var(--c-primary) 48%,#07182F 100%);
  border-right:1px solid rgba(0,229,255,.22);
  box-shadow:18px 0 44px rgba(3,10,24,.28);
}
.site-header::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.28;
  background-image:linear-gradient(rgba(0,229,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,.08) 1px,transparent 1px);
  background-size:34px 34px;
}
.site-header::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(135deg,transparent 52%,rgba(0,229,255,.13) 52.4%,rgba(0,229,255,.06) 70%,transparent 70.4%);
}
.header-inner{
  position:relative;z-index:2;
  display:flex;flex-direction:column;height:100%;gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--c-white)}
.brand:hover{text-decoration:none}
.brand-mark{
  flex:0 0 auto;width:50px;height:50px;display:grid;place-items:center;
  border-radius:18px 5px 18px 5px;
  background:linear-gradient(135deg,var(--c-primary-alt),var(--c-primary));
  border:1px solid rgba(255,215,0,.55);
  color:var(--c-yellow);font-family:var(--font-head);font-weight:800;font-size:22px;letter-spacing:.04em;
  box-shadow:0 0 18px rgba(0,229,255,.24),inset 0 0 12px rgba(0,229,255,.08);
}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-name{font-family:var(--font-head);font-size:21px;font-weight:800;letter-spacing:.08em;color:var(--c-white);text-transform:uppercase}
.brand-name span{color:var(--c-cyan)}
.brand-cn{font-size:11px;letter-spacing:.22em;color:rgba(255,255,255,.5);margin-top:6px;text-transform:uppercase}
.brand-footer .brand-mark{box-shadow:0 0 18px rgba(255,215,0,.18)}
.brand-footer .brand-name span{color:var(--c-green)}

.site-nav{flex:1;display:flex;flex-direction:column;justify-content:center;overflow-y:auto;overflow-x:hidden;min-height:0;scrollbar-width:thin}
.nav-list{display:flex;flex-direction:column;gap:8px}
.nav-link{
  display:flex;align-items:center;gap:10px;padding:12px 14px;
  border-radius:16px 5px 16px 5px;color:rgba(255,255,255,.68);
  text-decoration:none;font-weight:600;line-height:1.3;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.nav-link::before{
  content:"";width:6px;height:6px;border-radius:50%;flex:0 0 auto;
  background:var(--c-cyan);box-shadow:0 0 10px var(--c-cyan);opacity:.75;
}
.nav-label{flex:1}
.nav-index{
  font-family:var(--font-num);font-size:11px;letter-spacing:.08em;
  padding:2px 7px;border-radius:999px;color:rgba(255,255,255,.45);
  background:rgba(255,255,255,.06);transition:background .2s,color .2s;
}
.nav-link:hover{color:var(--c-white);background:rgba(0,229,255,.08);border-color:rgba(0,229,255,.26);transform:translateX(4px);text-decoration:none}
.nav-link:hover::before{background:var(--c-green);box-shadow:0 0 12px var(--c-green)}
.nav-link[aria-current="page"]{
  color:var(--c-yellow);
  background:linear-gradient(90deg,rgba(255,215,0,.16),rgba(255,215,0,.04));
  border-color:rgba(255,215,0,.32);
  box-shadow:inset 3px 0 0 var(--c-yellow),0 10px 26px rgba(0,0,0,.2);
}
.nav-link[aria-current="page"]::before{background:var(--c-yellow);box-shadow:0 0 12px var(--c-yellow)}
.nav-link[aria-current="page"] .nav-index{background:var(--c-yellow);color:var(--c-primary)}

.header-actions{display:flex;flex-direction:column;gap:16px;padding-top:4px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;padding:12px 20px;border-radius:999px;
  font-weight:700;line-height:1.2;text-decoration:none;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn:hover{text-decoration:none}
.btn-cta{
  background:var(--c-yellow);color:var(--c-primary);
  box-shadow:0 0 26px rgba(255,215,0,.22),0 8px 18px rgba(0,0,0,.22);
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(255,215,0,.38),0 12px 24px rgba(0,0,0,.26)}
.btn-secondary{background:rgba(0,229,255,.1);color:var(--c-white);border-color:rgba(0,229,255,.32)}
.btn-secondary:hover{background:rgba(0,229,255,.18);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(11,30,58,.18)}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(11,30,58,.04)}
.btn-sm{padding:8px 14px;font-size:13px}
.header-trust{
  display:flex;align-items:center;justify-content:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:rgba(255,255,255,.52);padding:0 4px;
}
.trust-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-green);box-shadow:0 0 12px var(--c-green);
  animation:trustPulse 2.4s ease-in-out infinite;
}
@keyframes trustPulse{0%,100%{opacity:.55;transform:scale(.9)}50%{opacity:1;transform:scale(1.15)}}

.nav-toggle{display:none}
.nav-toggle-box{display:inline-flex;flex-direction:column;gap:4px;width:20px}
.nav-toggle-box span{display:block;height:2px;border-radius:2px;background:var(--c-yellow);transition:transform .2s ease,opacity .2s ease}
.nav-toggle-text{font-size:11px;color:rgba(255,255,255,.82);letter-spacing:.06em}
.nav-backdrop{display:none}

.header-progress{position:absolute;bottom:0;left:0;right:0;height:3px;background:rgba(255,255,255,.06);z-index:5}
.header-progress span{display:block;height:100%;width:100%;background:linear-gradient(90deg,var(--c-yellow),var(--c-green));transform:scaleX(0);transform-origin:left center;will-change:transform}

@media (max-width:1180px){
  :root{--rail-width:230px}
  .site-header{padding:24px 12px}
  .brand-mark{width:42px;height:42px;font-size:18px}
  .brand-name{font-size:18px}
  .nav-link{padding:11px 10px;font-size:14px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-cols{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:960px){
  body{padding-left:0}
  .site-main{padding-top:var(--topbar-height)}
  .site-header{
    top:0;left:0;right:0;bottom:auto;width:auto;height:var(--topbar-height);
    padding:0 16px;border-right:0;border-bottom:1px solid rgba(0,229,255,.28);
    box-shadow:0 10px 30px rgba(3,10,24,.2);
  }
  .header-inner{flex-direction:row;align-items:center;justify-content:flex-start;height:100%;gap:8px}
  .brand{flex:1;min-width:0}
  .brand-mark{width:40px;height:40px;font-size:18px;border-radius:14px 4px 14px 4px}
  .brand-name{font-size:17px}
  .brand-cn{display:none}
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;left:auto;
    width:min(90vw,360px);z-index:65;
    display:flex;justify-content:flex-start;
    background:rgba(6,17,34,.98);
    padding:96px 24px 28px;
    border-left:1px solid rgba(0,229,255,.2);
    box-shadow:-22px 0 48px rgba(0,0,0,.4);
    transform:translateX(105%);
    visibility:hidden;
    transition:transform .3s ease,visibility 0s linear .3s;
  }
  .site-nav[data-open]{transform:translateX(0);visibility:visible;transition:transform .3s ease,visibility 0s}
  .nav-list{gap:10px}
  .nav-link{padding:15px 16px}
  .header-actions{display:none}
  .nav-toggle{
    display:inline-flex;z-index:80;width:44px;height:44px;
    border:1px solid rgba(255,255,255,.18);border-radius:15px 5px 15px 5px;
    background:rgba(255,255,255,.04);
    align-items:center;justify-content:center;flex-direction:column;gap:3px;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .nav-backdrop{
    display:block;position:fixed;inset:0;z-index:55;
    background:rgba(4,9,18,.55);backdrop-filter:blur(2px);
    opacity:0;pointer-events:none;transition:opacity .25s ease;
  }
  .nav-backdrop.is-open{opacity:1;pointer-events:auto}
  .header-progress{top:auto;bottom:0}
}

.site-footer{
  position:relative;overflow:hidden;margin-top:auto;
  background:linear-gradient(160deg,var(--c-primary-alt) 0%,var(--c-primary) 40%,#07152D 100%);
  color:rgba(255,255,255,.66);border-top:1px solid rgba(0,229,255,.18);
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.2;
  background-image:linear-gradient(rgba(0,229,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,.06) 1px,transparent 1px);
  background-size:36px 36px;
}
.footer-glow{
  position:absolute;width:420px;height:420px;right:-120px;top:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,229,255,.14),transparent 65%);
  filter:blur(12px);pointer-events:none;
}
.footer-inner{position:relative;z-index:2;max-width:1200px;margin-inline:auto;padding-inline:24px}
.footer-top{display:grid;grid-template-columns:minmax(220px,1fr) 2fr;gap:52px}
.footer-slogan{margin-top:16px;color:rgba(255,255,255,.56);font-size:14px;letter-spacing:.04em;line-height:1.9}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.footer-heading{
  font-family:var(--font-head);font-size:16px;letter-spacing:.14em;
  color:var(--c-yellow);text-transform:uppercase;margin-bottom:16px;
}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.68);transition:color .2s;font-size:14px}
.footer-links a:hover{color:var(--c-cyan);text-decoration:none}
.footer-line{font-size:13px;color:rgba(255,255,255,.58);margin-bottom:10px;line-height:1.7;word-break:break-word}
.footer-line a{color:var(--c-cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px 20px;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.48);font-size:13px;
}
.footer-bottom a{color:rgba(255,255,255,.56)}
.footer-bottom a:hover{color:var(--c-green);text-decoration:none}

@media (max-width:900px){
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-cols{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .panel{padding:24px}
  .page-head{padding:48px 0 20px}
  .section{padding:56px 0}
}
@media (max-width:640px){
  .footer-cols{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .card-grid{grid-template-columns:1fr}
  .section{padding:40px 0}
  .container{padding-inline:18px}
  .breadcrumb{font-size:13px}
}

.section{padding:72px 0}
.section-head{margin-bottom:40px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.18em;
  color:var(--c-primary);text-transform:uppercase;font-weight:700;
}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--c-yellow);border-radius:99px}
.lead{font-size:18px;color:var(--c-muted);margin-top:16px}
.page-head{padding:72px 0 28px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:4px;padding:0;margin:22px 0 20px;font-size:14px}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li+li::before{content:"/";margin-inline:8px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-cyan)}
.breadcrumb [aria-current="page"]{color:var(--c-primary);font-weight:800}
.panel{
  background:var(--c-white);border:1px solid rgba(0,229,255,.16);
  border-radius:var(--radius-panel);box-shadow:var(--shadow-1);padding:32px;
}
.panel--dark{
  background:linear-gradient(150deg,var(--c-primary),var(--c-primary-alt));
  color:rgba(255,255,255,.8);border-color:rgba(0,229,255,.22);
}
.panel--dark h1,.panel--dark h2,.panel--dark h3{color:var(--c-white)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  position:relative;background:var(--c-white);border:1px solid rgba(11,30,58,.06);
  border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1);overflow:hidden;
}
.card::before{content:"";position:absolute;inset:0 0 auto;height:3px;background:linear-gradient(90deg,var(--c-yellow),var(--c-green));opacity:.9}
.card__title{font-size:1.35rem;margin-bottom:10px}
.card__text{color:var(--c-muted);font-size:14px}
.card__link{display:inline-flex;margin-top:16px;font-weight:700;color:var(--c-primary)}
.card__link:hover{color:var(--c-cyan)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:rgba(0,229,255,.1);color:var(--c-primary);
  border:1px solid rgba(0,229,255,.25);font-size:12px;font-weight:700;
}
.data-stat{font-family:var(--font-num);font-size:2.2rem;font-weight:700;color:var(--c-primary);letter-spacing:-.02em;line-height:1}
.data-stat strong{color:var(--c-yellow)}
.media{
  position:relative;overflow:hidden;border-radius:24px 6px 24px 6px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-alt));
  border:1px solid rgba(0,229,255,.2);min-height:220px;
  display:grid;place-items:center;
}
.media::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(0,229,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,.1) 1px,transparent 1px);
  background-size:22px 22px;
}
.media::after{
  content:"YB";font-family:var(--font-head);font-size:3rem;
  letter-spacing:.12em;color:rgba(255,215,0,.35);z-index:1;
}
.media img,.media > *{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:16/9;min-height:0}
.media--tall{aspect-ratio:3/4;min-height:0}
.tabs{background:var(--c-white);border-radius:var(--radius-panel);border:1px solid rgba(0,229,255,.16);box-shadow:var(--shadow-1);overflow:hidden}
.tab-list{
  display:flex;flex-wrap:wrap;gap:4px;padding:12px;
  border-bottom:1px solid rgba(11,30,58,.1);background:rgba(11,30,58,.03);
}
.tab-link{
  appearance:none;border:0;background:transparent;padding:10px 18px;
  border-radius:999px;color:var(--c-muted);font-weight:700;
  transition:background .2s,color .2s;
}
.tab-link:hover{color:var(--c-primary);background:rgba(0,229,255,.12)}
.tab-link[aria-selected="true"]{background:var(--c-primary);color:var(--c-yellow);box-shadow:0 6px 18px rgba(11,30,58,.22)}
.tab-panel{padding:24px}
.tab-panel[hidden]{display:none}
.chart-bars{display:flex;align-items:flex-end;gap:12px;height:180px;padding-block:12px}
.chart-bar{flex:1;min-width:12px;background:linear-gradient(180deg,var(--c-green),var(--c-cyan));border-radius:12px 12px 3px 3px;opacity:.9}
.muted{color:var(--c-muted)}

html.js [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .55s ease,transform .55s ease}
html.js [data-reveal][data-visible]{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0ms!important}
  .trust-dot{animation:none}
  .site-nav,.nav-backdrop,.header-progress span,.skip-link,.nav-link,.btn{transition:none}
  html.js [data-reveal]{opacity:1!important;transform:none!important}
}