*,*::before,*::after{box-sizing:border-box}
:root{
  --bg-primary:#0A0E13;
  --bg-surface:#12181F;
  --bg-elevated:#1A222B;
  --text-primary:#E8ECEF;
  --text-secondary:#9CA8B3;
  --accent:#00FF88;
  --accent-orange:#FF6A00;
  --accent-cyan:#00D4FF;
  --border-dark:#2A343E;
  --header-height:72px;
  --container:1200px;
  --font-display:"DIN Condensed","Rajdhani","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:"SF Mono","Cascadia Code","Roboto Mono",Consolas,monospace
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-primary);
  color:var(--text-primary);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased
}
body.nav-lock{overflow:hidden}
img,svg{display:block;max-width:100%}
ul,ol{list-style:none}
a{color:inherit}
button{font:inherit;color:inherit}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  color:var(--text-primary);
  line-height:1.2;
  margin:0 0 .5em
}
h1{font-size:clamp(36px,5vw,56px)}
h2{font-size:clamp(28px,3.6vw,40px)}
h3{font-size:clamp(22px,2.6vw,28px)}
h4{font-size:20px}
:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:2px
}
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px
}
.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
}
.skip-link{
  position:absolute;
  left:-999px;
  top:0;
  z-index:200;
  background:var(--accent);
  color:var(--bg-primary);
  font-weight:700;
  padding:10px 18px;
  border-radius:0 0 6px 0
}
.skip-link:focus{left:0}
.section{padding:72px 0}
.section-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-cyan)
}
.section-eyebrow::before{
  content:"";
  width:20px;
  height:2px;
  background:var(--accent);
  transform:skewX(-30deg)
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(30px,4vw,48px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:.01em;
  color:var(--text-primary);
  margin:10px 0 0
}
.section-lead{
  color:var(--text-secondary);
  font-size:17px;
  line-height:1.75;
  max-width:680px
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1.2;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease
}
.btn--primary{
  background:var(--accent);
  color:var(--bg-primary);
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%)
}
.btn--primary:hover{
  background:#2BFF9C;
  transform:translateY(-2px)
}
.btn--ghost{
  background:transparent;
  border:1px solid var(--border-dark);
  color:var(--text-primary)
}
.btn--ghost:hover{
  border-color:var(--accent);
  color:var(--accent)
}
.btn--sm{padding:8px 16px;font-size:14px}
.btn--lg{padding:14px 30px;font-size:17px}
.grid{
  display:grid;
  gap:24px
}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--bento{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:16px
}
.grid--bento>*{grid-column:span 4}
.card{
  background:var(--bg-surface);
  border:1px solid var(--border-dark);
  border-radius:10px;
  padding:24px
}
.data-num{
  font-family:var(--font-mono);
  font-size:32px;
  font-weight:700;
  color:var(--accent-cyan);
  line-height:1;
  font-variant-numeric:tabular-nums
}
.data-label{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--text-secondary);
  text-transform:uppercase
}
.img-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/10;
  overflow:hidden;
  background:
    linear-gradient(135deg,rgba(0,255,136,.05),transparent 55%),
    linear-gradient(45deg,transparent 70%,rgba(0,212,255,.06)),
    var(--bg-surface);
  border:1px solid var(--border-dark)
}
.img-frame::before{
  content:"";
  position:absolute;
  inset:10px;
  border:1px dashed var(--border-dark);
  pointer-events:none
}
.img-frame::after{
  content:"IMG//KAIYUN";
  position:absolute;
  right:12px;
  bottom:10px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--text-secondary);
  opacity:.65;
  pointer-events:none
}
.img-frame--portrait{aspect-ratio:3/4}
.img-frame--auto{aspect-ratio:auto;min-height:220px}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:0;
  margin:0 0 24px;
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--text-secondary)
}
.breadcrumb__item{
  display:flex;
  align-items:center;
  gap:10px
}
.breadcrumb__item+.breadcrumb__item::before{
  content:"/";
  color:var(--border-dark)
}
.breadcrumb__link{
  color:var(--text-secondary);
  text-decoration:none
}
.breadcrumb__link:hover{color:var(--accent)}
.breadcrumb__item[aria-current="page"]{color:var(--text-primary)}
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px
}
.filter-btn{
  appearance:none;
  -webkit-appearance:none;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  background:var(--bg-surface);
  border:1px solid var(--border-dark);
  color:var(--text-secondary);
  font-family:var(--font-display);
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  cursor:pointer;
  clip-path:polygon(6px 0,100% 0,calc(100% - 6px) 100%,0 100%);
  transition:background .2s ease,color .2s ease,border-color .2s ease
}
.filter-btn:hover{
  border-color:var(--accent);
  color:var(--text-primary)
}
.filter-btn.is-active{
  background:var(--accent);
  border-color:var(--accent);
  color:var(--bg-primary);
  font-weight:800
}
.main-content{
  background:var(--bg-primary);
  min-height:60vh
}
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(10,14,19,.96);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-dark)
}
.site-header::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,var(--accent) 0%,var(--accent-cyan) 45%,transparent 100%);
  z-index:5
}
.site-header::after{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(-58deg,rgba(255,255,255,.016) 0 1px,transparent 1px 8px);
  pointer-events:none;
  z-index:0
}
.site-header__inner{
  position:relative;
  z-index:1;
  max-width:var(--container);
  margin:0 auto;
  height:var(--header-height);
  padding:0 24px;
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:16px
}
.site-header__track{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background-image:linear-gradient(90deg,rgba(42,52,62,.7) 0 10px,transparent 10px 20px);
  background-size:20px 1px;
  opacity:.5;
  pointer-events:none;
  z-index:4
}
.site-header__brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  text-decoration:none;
  line-height:1
}
.site-header__brand-mark{
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  letter-spacing:.05em;
  background:var(--accent);
  color:var(--bg-primary);
  padding:6px 12px;
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
  box-shadow:0 0 14px rgba(0,255,136,.4)
}
.site-header__brand-text{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--text-primary);
  white-space:nowrap
}
.site-header__nav{
  justify-self:stretch
}
.site-header__nav-list{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:2px;
  height:var(--header-height)
}
.site-header__nav-item{
  display:flex
}
.site-header__nav-link{
  display:flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  font-family:var(--font-display);
  font-size:16px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--text-secondary);
  text-decoration:none;
  border-bottom:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap
}
.site-header__nav-link:hover{
  color:var(--text-primary);
  background:rgba(255,255,255,.03)
}
.site-header__nav-link[aria-current="page"]{
  color:var(--accent);
  border-bottom-color:var(--accent)
}
.site-header__nav-index{
  font-family:var(--font-mono);
  font-size:10px;
  color:rgba(154,168,179,.8)
}
.site-header__nav-link[aria-current="page"] .site-header__nav-index{
  color:var(--accent)
}
.site-header__actions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:12px
}
.site-header__cta{
  white-space:nowrap
}
.site-header__toggle{
  display:none;
  margin:0;
  padding:8px 4px;
  background:none;
  border:0;
  cursor:pointer;
  color:var(--text-primary)
}
.site-header__toggle-bar{
  display:block;
  width:24px;
  height:2px;
  background:currentColor;
  margin:5px 0;
  transition:transform .28s ease,opacity .2s ease
}
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1){
  transform:translateY(7px) rotate(45deg)
}
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2){
  opacity:0
}
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3){
  transform:translateY(-7px) rotate(-45deg)
}
.scroll-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  height:2px;
  width:0%;
  background:linear-gradient(90deg,var(--accent) 0%,var(--accent-cyan) 50%,var(--accent-orange) 100%);
  z-index:6;
  pointer-events:none
}
.site-footer{
  background:#05080C;
  border-top:1px solid var(--border-dark);
  position:relative;
  overflow:hidden
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,var(--accent) 0%,transparent 55%,var(--accent-orange) 100%);
  z-index:1
}
.site-footer::after{
  content:"";
  position:absolute;
  right:-60px;
  bottom:-80px;
  width:320px;
  height:240px;
  background:linear-gradient(120deg,transparent 20%,rgba(0,212,255,.06) 70%);
  transform:skewX(-12deg);
  pointer-events:none
}
.site-footer__inner{
  max-width:var(--container);
  margin:0 auto;
  padding:56px 24px 40px;
  display:grid;
  grid-template-columns:1.6fr 1fr 1.4fr;
  gap:40px;
  position:relative;
  z-index:1
}
.site-footer__brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-display);
  font-size:22px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--text-primary);
  text-decoration:none;
  line-height:1.2
}
.site-footer__brand-mark{
  font-size:13px;
  background:var(--accent);
  color:var(--bg-primary);
  padding:4px 10px;
  font-weight:800;
  clip-path:polygon(6px 0,100% 0,calc(100% - 6px) 100%,0 100%)
}
.site-footer__desc{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.7;
  margin:16px 0 0;
  max-width:360px
}
.site-footer__heading{
  font-family:var(--font-display);
  font-size:14px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 16px
}
.site-footer__nav-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 16px;
  padding:0
}
.site-footer__nav-link{
  color:var(--text-secondary);
  text-decoration:none;
  font-size:14px;
  line-height:1.4;
  transition:color .2s ease
}
.site-footer__nav-link:hover{
  color:var(--text-primary)
}
.site-footer__text{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.7;
  margin:0 0 8px
}
.site-footer__text:last-child{
  margin-bottom:0
}
.site-footer__bottom{
  position:relative;
  z-index:1;
  max-width:var(--container);
  margin:0 auto;
  padding:16px 24px 28px;
  border-top:1px solid var(--border-dark);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 20px;
  font-size:13px;
  color:var(--text-secondary)
}
.site-footer__bottom p{
  margin:0
}
.site-footer__legal{
  display:flex;
  flex-wrap:wrap;
  gap:14px
}
.site-footer__legal a{
  color:var(--text-secondary);
  text-decoration:none;
  transition:color .2s ease
}
.site-footer__legal a:hover{
  color:var(--accent)
}
@media (max-width:1140px){
  .site-header__inner{
    gap:10px;
    padding:0 20px
  }
  .site-header__nav-link{
    padding:8px 10px;
    font-size:15px
  }
  .site-header__brand-text{
    font-size:19px
  }
  .site-footer__inner{
    grid-template-columns:1.4fr 1fr 1.2fr;
    gap:28px
  }
}
@media (max-width:920px){
  .site-header__toggle{
    display:block
  }
  .site-header__nav{
    position:fixed;
    top:var(--header-height);
    left:0;
    right:0;
    max-height:calc(100vh - var(--header-height));
    overflow-y:auto;
    background:var(--bg-surface);
    border-bottom:1px solid var(--border-dark);
    padding:12px 24px 24px;
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    transition:opacity .24s ease,transform .24s ease,visibility .24s;
    z-index:99
  }
  .site-header__nav[data-open]{
    opacity:1;
    transform:translateY(0);
    visibility:visible
  }
  .site-header__nav-list{
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    height:auto;
    gap:4px;
    padding-top:8px
  }
  .site-header__nav-link{
    border-bottom:none;
    border-left:2px solid transparent;
    padding:12px 14px;
    font-size:17px
  }
  .site-header__nav-link[aria-current="page"]{
    border-left-color:var(--accent);
    background:rgba(0,255,136,.06)
  }
  .site-footer__inner{
    grid-template-columns:1fr 1fr
  }
  .site-footer__brand-col{
    grid-column:1 / -1
  }
  .grid--bento>*{
    grid-column:span 6
  }
  .grid--3{
    grid-template-columns:repeat(2,minmax(0,1fr))
  }
}
@media (max-width:640px){
  .container{
    padding:0 16px
  }
  .site-header__inner{
    padding:0 16px
  }
  .site-header__cta{
    display:none
  }
  .site-header__nav{
    padding:8px 16px 16px
  }
  .site-footer__inner{
    grid-template-columns:1fr;
    gap:32px;
    padding:40px 20px 28px
  }
  .site-footer__brand-col{
    grid-column:auto
  }
  .site-footer__nav-list{
    grid-template-columns:minmax(0,1fr)
  }
  .site-footer__bottom{
    flex-direction:column;
    align-items:flex-start;
    padding:16px 20px 24px
  }
  .grid--2{
    grid-template-columns:1fr
  }
  .grid--3{
    grid-template-columns:1fr
  }
  .grid--bento{
    grid-template-columns:1fr
  }
  .grid--bento>*{
    grid-column:span 1
  }
  .section{
    padding:48px 0
  }
}
@media (prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto
  }
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important
  }
}