:root{
  --color-space:#0B1D3A;
  --color-night:#0F2A4A;
  --color-violet:#7B2FF7;
  --color-gold:#FF9F1C;
  --color-cyan:#00CFFD;
  --color-mist:#E5E7EB;
  --color-white:#FFFFFF;
  --color-abyss:#050B1A;
  --grad-aurora:linear-gradient(120deg,#7B2FF7 0%,#00CFFD 100%);
  --grad-gold:linear-gradient(120deg,#FF9F1C 0%,#F7D154 100%);
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-accent:"Space Grotesk","Outfit",sans-serif;
  --container-width:1280px;
  --header-h:84px;
  --ease:cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-sans);
  font-weight:400;
  line-height:1.6;
  color:rgba(255,255,255,.82);
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(123,47,247,.18), transparent 60%),
    radial-gradient(720px 420px at -10% 35%, rgba(0,207,253,.08), transparent 60%),
    var(--color-abyss);
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,figure,dl,dd,dt{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--color-cyan);text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
img,svg{display:block;max-width:100%;}
strong{font-weight:700;color:var(--color-white);}
:focus-visible{outline:2px solid var(--color-gold);outline-offset:3px;}

.skip-link{
  position:fixed;
  top:.75rem;
  left:.75rem;
  z-index:300;
  padding:.85rem 1.4rem;
  background:var(--color-gold);
  color:var(--color-abyss);
  font-weight:700;
  letter-spacing:.08em;
  transform:translateY(-220%);
  transition:transform .3s var(--ease);
}
.skip-link:focus{transform:translateY(0);}

.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(5,11,26,.82);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid rgba(0,207,253,.14);
}
.header-inner{
  max-width:var(--container-width);
  margin-inline:auto;
  height:var(--header-h);
  padding-inline:clamp(20px,4vw,48px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  position:relative;
}
.progress-track{
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:rgba(255,255,255,.05);
  pointer-events:none;
}
.progress-fill{
  display:block;
  height:100%;
  width:0%;
  background:linear-gradient(90deg,var(--color-violet),var(--color-cyan),var(--color-gold));
  transition:width .2s linear;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:14px;
  color:var(--color-white);
  flex-shrink:0;
}
.brand:hover{color:var(--color-white);}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{
  display:flex;
  align-items:baseline;
  gap:.18em;
  font-family:var(--font-accent);
  font-weight:700;
  font-size:1.35rem;
  letter-spacing:.06em;
  color:var(--color-white);
}
.brand-name-cn{
  font-family:var(--font-sans);
  font-weight:100;
  font-size:.92rem;
  letter-spacing:.14em;
  color:rgba(255,255,255,.84);
}
.brand-tag{
  margin-top:.16rem;
  font-family:var(--font-accent);
  font-size:.64rem;
  letter-spacing:.38em;
  text-transform:uppercase;
  color:var(--color-cyan);
}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;flex:0 0 auto;}
.brand-mark svg{transition:transform .5s var(--ease);}
.brand:hover .brand-mark svg{transform:rotate(180deg);}
.brand--footer{color:var(--color-white);}
.brand--footer .brand-tag{color:var(--color-gold);}

.nav-toggle{
  display:none;
  place-items:center;
  width:44px;
  height:44px;
  position:relative;
  z-index:130;
}
.nav-toggle-box{display:block;width:22px;height:14px;position:relative;}
.nav-toggle-line{
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:var(--color-white);
  transition:transform .3s var(--ease),opacity .3s ease,top .3s ease;
}
.nav-toggle-line:nth-child(1){top:0;}
.nav-toggle-line:nth-child(2){top:6px;}
.nav-toggle-line:nth-child(3){top:12px;}
.nav-toggle[data-open="true"] .nav-toggle-line:nth-child(1){top:6px;transform:rotate(45deg);}
.nav-toggle[data-open="true"] .nav-toggle-line:nth-child(2){opacity:0;}
.nav-toggle[data-open="true"] .nav-toggle-line:nth-child(3){top:6px;transform:rotate(-45deg);}

.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(1rem,2.6vw,2.4rem);
}
.nav-list{display:flex;align-items:center;gap:clamp(.6rem,1.4vw,1.4rem);}
.nav-list a{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.6rem .1rem;
  color:rgba(255,255,255,.68);
  font-size:.92rem;
  letter-spacing:.08em;
  transition:color .3s var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:16px;
  height:2px;
  background:var(--color-cyan);
  transform:translateX(-50%) scaleX(0);
  transition:transform .3s var(--ease),background-color .3s ease;
}
.nav-list a:hover{color:var(--color-white);}
.nav-list a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-list a[aria-current="page"]{
  color:var(--color-white);
  font-weight:700;
}
.nav-list a[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:-13px;
  top:50%;
  width:5px;
  height:5px;
  background:var(--color-gold);
  transform:translateY(-50%) rotate(45deg);
}
.nav-list a[aria-current="page"]::after{
  background:var(--color-gold);
  transform:translateX(-50%) scaleX(1);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  padding:.72rem 1.35rem;
  border:1px solid rgba(0,207,253,.4);
  background:rgba(123,47,247,.12);
  color:var(--color-white);
  font-size:.88rem;
  letter-spacing:.14em;
  transition:border-color .3s ease,background-color .3s ease,box-shadow .3s ease;
}
.nav-cta:hover{
  border-color:var(--color-gold);
  background:rgba(255,159,28,.12);
  color:var(--color-white);
  box-shadow:0 0 28px rgba(123,47,247,.18);
}

.site-footer{
  position:relative;
  background:linear-gradient(180deg,var(--color-abyss) 0%,#02050E 100%);
  border-top:1px solid rgba(0,207,253,.12);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--color-violet) 22%,var(--color-cyan) 58%,var(--color-gold) 85%,transparent);
}
.site-footer::after{
  content:"";
  position:absolute;
  right:-140px;
  bottom:-160px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(123,47,247,.22),transparent 68%);
  pointer-events:none;
}
.footer-top{
  position:relative;
  z-index:1;
  max-width:var(--container-width);
  margin-inline:auto;
  padding:clamp(2.8rem,6vw,4.8rem) clamp(20px,4vw,48px) 2rem;
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr;
  gap:clamp(2rem,5vw,4rem);
}
.footer-brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:1.2rem;
}
.footer-trust{
  max-width:38ch;
  color:rgba(255,255,255,.58);
  font-size:.92rem;
  line-height:1.9;
}
.contact-list{display:grid;gap:.55rem;max-width:100%;}
.contact-row{
  display:grid;
  grid-template-columns:3em 1fr;
  gap:.8rem;
  font-size:.9rem;
}
.contact-row dt{
  color:var(--color-cyan);
  font-family:var(--font-accent);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  padding-top:.2rem;
}
.contact-row dd{
  color:rgba(255,255,255,.72);
  word-break:break-word;
}
.footer-col{
  display:flex;
  flex-direction:column;
  gap:1rem;
}
.footer-title{
  margin:0;
  font-size:.75rem;
  font-family:var(--font-accent);
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--color-mist);
  font-weight:700;
}
.footer-links{display:grid;gap:.4rem;}
.footer-links a{
  display:inline-flex;
  align-items:center;
  gap:.7rem;
  padding:.24rem 0;
  color:rgba(255,255,255,.62);
  font-size:.95rem;
  transition:color .3s ease,padding-left .3s ease;
}
.footer-links a::before{
  content:"";
  width:6px;
  height:6px;
  border:1px solid var(--color-gold);
  transform:rotate(45deg);
  transition:background-color .3s ease,border-color .3s ease;
}
.footer-links a:hover{color:var(--color-white);padding-left:.3rem;}
.footer-links a:hover::before{background:var(--color-gold);}
.footer-base{
  position:relative;
  z-index:1;
  border-top:1px solid rgba(255,255,255,.07);
}
.footer-base-inner{
  max-width:var(--container-width);
  margin-inline:auto;
  padding:1.35rem clamp(20px,4vw,48px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.8rem 2.5rem;
  color:rgba(255,255,255,.45);
  font-size:.84rem;
}

.to-top{
  position:fixed;
  right:clamp(20px,3vw,36px);
  bottom:clamp(20px,3vw,36px);
  z-index:110;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  border:1px solid rgba(0,207,253,.4);
  background:rgba(5,11,26,.85);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  color:var(--color-cyan);
  font-size:1.2rem;
  transition:border-color .3s ease,color .3s ease,box-shadow .3s ease;
}
.to-top:hover{
  border-color:var(--color-gold);
  color:var(--color-gold);
  box-shadow:0 0 28px rgba(255,159,28,.25);
}

.container{
  max-width:var(--container-width);
  margin-inline:auto;
  padding-inline:clamp(20px,4vw,48px);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55rem;
  font-size:.85rem;
  color:rgba(255,255,255,.5);
}
.breadcrumb a{color:var(--color-cyan);transition:color .3s ease;}
.breadcrumb a:hover{color:var(--color-gold);}
.breadcrumb .sep{color:rgba(255,255,255,.3);}
.breadcrumb [aria-current="page"]{color:var(--color-gold);font-weight:700;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.6rem;
  padding:.95rem 1.7rem;
  border:1px solid rgba(0,207,253,.5);
  background:transparent;
  color:var(--color-white);
  font-family:var(--font-sans);
  font-size:.92rem;
  letter-spacing:.12em;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:all .3s var(--ease);
}
.btn:hover{
  border-color:var(--color-gold);
  color:var(--color-gold);
  box-shadow:0 0 24px rgba(255,159,28,.12);
}
.btn-primary{
  border-color:transparent;
  background:var(--grad-aurora);
  color:var(--color-white);
}
.btn-primary:hover{
  color:var(--color-white);
  border-color:transparent;
  box-shadow:0 8px 40px rgba(123,47,247,.4);
  filter:saturate(1.15);
}
.btn-ghost{
  border-color:rgba(255,255,255,.2);
  background:rgba(255,255,255,.02);
  color:rgba(255,255,255,.82);
}
.btn-ghost:hover{
  border-color:var(--color-cyan);
  color:var(--color-white);
}

.section-head{
  display:flex;
  flex-direction:column;
  gap:.75rem;
  margin-bottom:2.4rem;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.7rem;
  font-family:var(--font-accent);
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--color-cyan);
}
.eyebrow::before{
  content:"";
  width:24px;
  height:1px;
  background:var(--color-gold);
}
.display-title{
  margin:0;
  font-size:clamp(2.7rem,7vw,5.2rem);
  font-weight:100;
  line-height:1.06;
  color:var(--color-white);
  letter-spacing:.01em;
}
.lede{
  max-width:60ch;
  font-size:clamp(1rem,1.5vw,1.2rem);
  line-height:1.9;
  color:rgba(255,255,255,.66);
}
.prose{
  max-width:70ch;
  color:rgba(255,255,255,.74);
  line-height:1.9;
}
.prose h2,.prose h3{
  margin-top:2.2rem;
  color:var(--color-white);
  font-weight:100;
}
.prose p{margin:0 0 1.2em;}

.divider{
  height:1px;
  border:0;
  margin:clamp(2rem,5vw,3.5rem) 0;
  background:linear-gradient(90deg,transparent,rgba(0,207,253,.3),transparent);
}
.auto-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));
  gap:clamp(1rem,2vw,1.75rem);
}
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(1rem,3vw,2.4rem);
}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(1rem,3vw,2.2rem);
}

.panel{
  position:relative;
  padding:clamp(1.4rem,2.6vw,2rem);
  background:linear-gradient(160deg,rgba(15,42,74,.78),rgba(11,29,58,.9));
  border:1px solid rgba(0,207,253,.16);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .3s ease;
}
.panel::before{
  content:"";
  position:absolute;
  top:-1px;
  left:-1px;
  width:56px;
  height:2px;
  background:linear-gradient(90deg,var(--color-violet),var(--color-cyan));
  transition:width .4s var(--ease);
}
.panel:hover{
  border-color:rgba(0,207,253,.4);
  box-shadow:0 24px 64px rgba(5,11,26,.5),0 0 0 1px rgba(123,47,247,.18);
  transform:translateY(-4px);
}
.panel:hover::before{width:100%;}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.3em .8em;
  border:1px solid rgba(255,159,28,.5);
  background:rgba(255,159,28,.08);
  color:var(--color-gold);
  font-size:.74rem;
  letter-spacing:.14em;
  font-weight:700;
  text-transform:uppercase;
}
.tag::before{
  content:"";
  flex:0 0 auto;
  width:5px;
  height:5px;
  background:currentColor;
  transform:rotate(45deg);
}

.image-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/9;
  background:linear-gradient(150deg,rgba(123,47,247,.22),rgba(0,207,253,.06) 55%,rgba(255,159,28,.08));
  border:1px solid rgba(0,207,253,.22);
  overflow:hidden;
}
.image-frame::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(0,207,253,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,207,253,.1) 1px,transparent 1px);
  background-size:26px 26px;
  mix-blend-mode:screen;
}
.image-frame::after{
  content:"";
  position:absolute;
  top:-30px;
  right:-30px;
  width:130px;
  height:130px;
  background:radial-gradient(circle,rgba(255,159,28,.5),transparent 70%);
}
.image-frame img{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  object-fit:cover;
}
.image-frame--wide{aspect-ratio:21/9;}
.image-frame--tall{aspect-ratio:3/4;}

[data-section]{position:relative;}
[data-section]::before{
  content:"";
  position:absolute;
  left:-1px;
  top:10%;
  bottom:10%;
  width:2px;
  background:linear-gradient(180deg,var(--color-violet),var(--color-cyan));
  opacity:0;
  transform:scaleY(.4);
  transition:opacity .4s ease,transform .5s var(--ease);
}
[data-section][data-active="true"]::before{
  opacity:1;
  transform:scaleY(1);
}

[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  will-change:opacity,transform;
}
[data-reveal][data-revealed="true"]{
  opacity:1;
  transform:none;
}

body.nav-locked{overflow:hidden;}

@media (max-width:1080px){
  .nav-list{gap:.4rem;}
  .nav-list a{font-size:.85rem;letter-spacing:.04em;}
  .nav-cta{padding:.6rem 1rem;}
  .site-nav{gap:1rem;}
}

@media (max-width:960px){
  :root{--header-h:68px;}
  .nav-toggle{display:grid;}
  .site-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    z-index:100;
    width:min(82vw,340px);
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:.2rem;
    padding:calc(var(--header-h) + 2rem) 1.8rem 2.4rem;
    background:rgba(5,11,26,.92);
    -webkit-backdrop-filter:blur(22px);
    backdrop-filter:blur(22px);
    border-left:1px solid rgba(0,207,253,.16);
    transform:translateX(102%);
    visibility:hidden;
    transition:transform .5s var(--ease),visibility 0s linear .5s;
  }
  .site-nav[data-open="true"]{
    transform:translateX(0);
    visibility:visible;
    transition-delay:0s;
  }
  .site-nav .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:.15rem;
  }
  .site-nav .nav-list a{
    display:block;
    padding:1rem .1rem;
    font-size:1.15rem;
    font-weight:100;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .site-nav .nav-list a[aria-current="page"]::before{display:none;}
  .site-nav .nav-cta{
    display:flex;
    align-items:center;
    justify-content:center;
    width:100%;
    margin-top:1.8rem;
  }
}

@media (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
  .grid-3{grid-template-columns:1fr 1fr;}
}

@media (max-width:620px){
  .footer-top{grid-template-columns:1fr;}
  .footer-brand{grid-column:auto;}
  .contact-row{grid-template-columns:1fr;}
  .footer-base-inner{justify-content:center;text-align:center;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
}

@media (min-width:961px){
  body.nav-locked{overflow:auto;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation:none!important;transition:none!important;}
  [data-reveal]{opacity:1!important;transform:none!important;}
}