:root{
  --bg-primary:#0a0a0f;
  --bg-secondary:#12121a;
  --bg-panel:#1a1a24;
  --accent-purple:#b14dff;
  --accent-blue:#00e5ff;
  --accent-pink:#ff7ac6;
  --accent-warning:#ffb800;
  --text-primary:#f5f5ff;
  --text-secondary:#a0a0b8;
  --text-muted:#5a5a70;
  --border:#2a2a3a;
  --border-bright:#3a3a50;
  --font-heading:"ZCOOL QingKe HuangYou","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --container-max:1240px;
  --gutter:clamp(16px,4vw,48px);
  --header-z:100;
  --transition-fast:160ms ease;
  --transition-base:260ms ease;
  --radius:2px;
  --shadow-panel:0 12px 36px rgba(0,0,0,.45);
  --shadow-neon-purple:0 0 12px rgba(177,77,255,.55);
  --shadow-neon-blue:0 0 12px rgba(0,229,255,.45);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text-primary);
  background:var(--bg-primary);
  background-image:
    radial-gradient(circle at 12% 8%,rgba(177,77,255,.10) 0%,transparent 28%),
    radial-gradient(circle at 88% 20%,rgba(0,229,255,.08) 0%,transparent 26%),
    radial-gradient(circle at 50% 90%,rgba(255,122,198,.05) 0%,transparent 30%),
    linear-gradient(var(--bg-primary),var(--bg-secondary));
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--accent-blue);text-decoration:none;transition:color var(--transition-fast)}
a:hover{color:var(--accent-pink)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.visually-hidden{
  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:fixed;
  top:12px;
  left:50%;
  transform:translateX(-50%) translateY(-120%);
  z-index:200;
  background:var(--accent-purple);
  color:#fff;
  padding:10px 20px;
  border-radius:var(--radius);
  font-weight:600;
  font-size:14px;
  box-shadow:var(--shadow-neon-purple);
  transition:transform var(--transition-fast);
}
.skip-link:focus-visible{
  transform:translateX(-50%) translateY(0);
  outline:2px solid var(--accent-blue);
  outline-offset:2px;
}
.container{
  max-width:var(--container-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.container--wide{max-width:1560px}
.container--header{
  display:flex;
  align-items:center;
  justify-content:center;
}
.site-header{
  position:sticky;
  top:12px;
  z-index:var(--header-z);
  padding:0 14px;
  pointer-events:none;
}
.site-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:24px;
  max-width:1120px;
  margin-inline:auto;
  padding:10px 16px;
  background:rgba(10,10,15,.82);
  backdrop-filter:blur(16px);
  border:1px solid var(--border);
  border-radius:48px;
  box-shadow:0 0 0 1px rgba(0,229,255,.04),0 14px 40px rgba(0,0,0,.5);
  pointer-events:auto;
  transition:border-color var(--transition-base),box-shadow var(--transition-base);
}
.site-header__inner:hover{
  border-color:var(--border-bright);
  box-shadow:0 0 0 1px rgba(177,77,255,.12),0 14px 50px rgba(0,0,0,.62),0 0 20px rgba(177,77,255,.08);
}
.site-header__brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text-primary);
  padding:4px 6px;
  border-radius:24px;
  transition:color var(--transition-fast);
}
.site-header__brand:hover{color:var(--accent-blue)}
.site-header__brand-mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  background:linear-gradient(135deg,var(--accent-purple),var(--accent-blue));
  color:#fff;
  font-family:var(--font-heading);
  font-size:20px;
  font-weight:700;
  border-radius:50%;
  box-shadow:0 0 14px rgba(177,77,255,.35);
}
.site-header__brand-text{
  font-family:var(--font-heading);
  font-size:20px;
  font-weight:700;
  letter-spacing:.06em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-inline:auto;
}
.nav-links__item{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  border-radius:24px;
  transition:color var(--transition-fast),background var(--transition-fast),box-shadow var(--transition-fast);
}
.nav-links__item::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:2px;
  height:2px;
  background:linear-gradient(90deg,var(--accent-purple),var(--accent-blue));
  border-radius:2px;
  opacity:0;
  transform:scaleX(.3);
  transition:opacity var(--transition-fast),transform var(--transition-fast);
}
.nav-links__item:hover{
  color:var(--accent-blue);
  background:rgba(0,229,255,.06);
}
.nav-links__item[aria-current="page"]{
  color:var(--text-primary);
  background:linear-gradient(135deg,rgba(177,77,255,.12),rgba(0,229,255,.08));
  box-shadow:inset 0 0 0 1px rgba(177,77,255,.25);
}
.nav-links__item[aria-current="page"]::after{
  opacity:1;
  transform:scaleX(1);
  box-shadow:0 0 8px rgba(177,77,255,.7);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;
  height:42px;
  padding:10px 8px;
  border-radius:50%;
  background:var(--bg-panel);
  border:1px solid var(--border);
  transition:border-color var(--transition-fast),box-shadow var(--transition-fast);
}
.nav-toggle:hover{border-color:var(--accent-purple);box-shadow:var(--shadow-neon-purple)}
.nav-toggle__line{
  display:block;
  width:100%;
  height:2px;
  background:var(--text-secondary);
  border-radius:2px;
  transition:background var(--transition-fast),transform var(--transition-base);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--accent-pink)}
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--accent-pink)}
.header-progress{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
  padding:8px 16px;
  background:var(--bg-panel);
  border:1px solid var(--border);
  border-radius:24px;
  font-size:13px;
  font-weight:500;
  color:var(--text-secondary);
  transition:all var(--transition-fast);
}
.header-progress:hover{
  color:var(--accent-blue);
  border-color:var(--accent-blue);
  box-shadow:0 0 14px rgba(0,229,255,.22);
}
.header-progress__dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent-warning);
  box-shadow:0 0 10px rgba(255,184,0,.8);
  flex-shrink:0;
}
.site-footer{
  position:relative;
  margin-top:auto;
  border-top:1px solid var(--border);
  background:linear-gradient(180deg,var(--bg-secondary),#0d0d14);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--accent-purple),var(--accent-blue),transparent);
  opacity:.5;
}
.site-footer::after{
  content:"";
  position:absolute;
  bottom:-200px;
  right:-150px;
  width:380px;
  height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(177,77,255,.10),transparent 70%);
  pointer-events:none;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr .8fr .8fr 1.1fr;
  gap:clamp(24px,4vw,52px);
  padding:64px 0 44px;
  position:relative;
  z-index:1;
}
.footer-brand__logo{
  display:inline-block;
  font-family:var(--font-heading);
  font-size:28px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--text-primary);
  margin-bottom:14px;
  transition:color var(--transition-fast);
}
.footer-brand__logo:hover{color:var(--accent-purple)}
.footer-brand__desc{
  font-size:14px;
  line-height:1.9;
  color:var(--text-muted);
  max-width:340px;
  margin-bottom:18px;
}
.footer-brand__status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  font-size:12px;
  color:var(--text-secondary);
  background:var(--bg-panel);
  border:1px solid var(--border);
  border-radius:20px;
}
.footer-brand__status-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent-blue);
  box-shadow:0 0 8px rgba(0,229,255,.7);
}
.footer-col__title{
  font-family:var(--font-heading);
  font-size:14px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--text-primary);
  margin-bottom:18px;
  position:relative;
  padding-bottom:10px;
}
.footer-col__title::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:28px;
  height:2px;
  background:linear-gradient(90deg,var(--accent-purple),var(--accent-blue));
  border-radius:2px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links__item{
  display:inline-block;
  font-size:14px;
  color:var(--text-secondary);
  transition:color var(--transition-fast),transform var(--transition-fast);
  position:relative;
  padding-left:0;
}
.footer-links__item::before{
  content:"↳";
  margin-right:6px;
  color:var(--accent-purple);
  font-size:12px;
  opacity:.7;
  transition:opacity var(--transition-fast);
}
.footer-links__item:hover{
  color:var(--accent-pink);
  transform:translateX(4px);
}
.footer-links__item:hover::before{opacity:1;color:var(--accent-blue)}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.footer-contact__item{
  display:flex;
  flex-direction:column;
  gap:2px;
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.6;
}
.footer-contact__label{
  font-size:12px;
  color:var(--text-muted);
  letter-spacing:.08em;
  text-transform:uppercase;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:24px 0;
  border-top:1px solid var(--border);
  position:relative;
  z-index:1;
}
.footer-copy{
  font-size:13px;
  color:var(--text-muted);
}
.footer-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:12px;
  color:var(--text-muted);
}
.footer-meta__divider{
  width:1px;
  height:14px;
  background:var(--border-bright);
}
.neon-link{
  color:var(--accent-blue);
  transition:color var(--transition-fast),text-shadow var(--transition-fast);
}
.neon-link:hover{
  color:var(--accent-pink);
  text-shadow:0 0 12px rgba(255,122,198,.6);
}
main{
  flex:1;
  display:flex;
  flex-direction:column;
}
.section{
  position:relative;
  padding:clamp(60px,8vw,112px) 0;
  overflow:hidden;
}
.section--split{
  display:grid;
  grid-template-columns:minmax(220px,320px) 1fr;
  gap:clamp(24px,6vw,80px);
}
.section--tilt::before{
  content:"";
  position:absolute;
  top:0;
  right:-20%;
  width:60%;
  height:100%;
  background:linear-gradient(135deg,rgba(177,77,255,.06),rgba(0,229,255,.03));
  clip-path:polygon(20% 0,100% 0,80% 100%,0 100%);
  pointer-events:none;
}
.panel{
  position:relative;
  background:var(--bg-panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:clamp(20px,3vw,36px);
  box-shadow:var(--shadow-panel);
  transition:border-color var(--transition-base),box-shadow var(--transition-base),transform var(--transition-base);
}
.panel::before{
  content:"";
  position:absolute;
  top:-1px;
  left:-1px;
  width:24px;
  height:24px;
  border-top:3px solid var(--accent-purple);
  border-left:3px solid var(--accent-purple);
  opacity:.7;
  transition:opacity var(--transition-fast);
}
.panel::after{
  content:"";
  position:absolute;
  bottom:-1px;
  right:-1px;
  width:24px;
  height:24px;
  border-bottom:3px solid var(--accent-blue);
  border-right:3px solid var(--accent-blue);
  opacity:.7;
}
.panel:hover{
  border-color:var(--border-bright);
  box-shadow:0 0 0 1px rgba(177,77,255,.12),0 14px 44px rgba(0,0,0,.5),0 0 24px rgba(177,77,255,.08);
  transform:translateY(-2px);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  border-radius:var(--radius);
  border:1px solid var(--border-bright);
  color:var(--text-primary);
  background:var(--bg-panel);
  transition:all var(--transition-fast);
  text-decoration:none;
}
.btn:hover{
  color:#fff;
  border-color:var(--accent-purple);
  box-shadow:var(--shadow-neon-purple);
  transform:translateY(-1px);
}
.btn--primary{
  background:linear-gradient(135deg,var(--accent-purple),#7a2bd4);
  border-color:transparent;
  color:#fff;
  box-shadow:0 0 18px rgba(177,77,255,.25);
}
.btn--primary:hover{
  box-shadow:0 0 30px rgba(177,77,255,.55);
  border-color:var(--accent-purple);
  background:linear-gradient(135deg,#bd6dff,#8f3de8);
}
.btn--ghost{
  background:transparent;
  border-color:var(--border-bright);
  color:var(--text-secondary);
}
.btn--ghost:hover{
  border-color:var(--accent-blue);
  color:var(--accent-blue);
  box-shadow:0 0 14px rgba(0,229,255,.28);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:18px 0;
  font-size:13px;
  color:var(--text-muted);
}
.breadcrumb__item{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-muted);
}
.breadcrumb__item:not(:last-child)::after{
  content:"/";
  color:var(--border-bright);
  font-size:12px;
}
.breadcrumb__item a{color:var(--text-secondary)}
.breadcrumb__item a:hover{color:var(--accent-blue)}
.map-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:clamp(20px,3vw,32px);
}
.map-grid__item{
  min-width:0;
}
.tilt-block{
  position:relative;
  padding:clamp(28px,5vw,64px);
  background:linear-gradient(135deg,rgba(177,77,255,.08),rgba(0,229,255,.04));
  border-left:3px solid var(--accent-purple);
  border-right:1px solid var(--border);
  clip-path:polygon(0 0,100% 3%,97% 100%,0 100%);
}
.index-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-heading);
  font-size:13px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--accent-blue);
  margin-bottom:12px;
}
.index-label::before{
  content:"";
  display:inline-block;
  width:24px;
  height:1px;
  background:var(--accent-purple);
}
.index-label .coord{
  color:var(--text-muted);
  letter-spacing:.04em;
}
.coordinate-grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
}
.coordinate-grid--dense{
  background-size:28px 28px;
  opacity:.5;
}
.img-frame{
  position:relative;
  overflow:hidden;
  background:rgba(255,255,255,.03);
  border:1px solid var(--border);
  border-radius:var(--radius);
  transition:border-color var(--transition-base);
}
.img-frame::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(135deg,rgba(177,77,255,.06),transparent 40%),
    repeating-linear-gradient(0deg,transparent 0 8px,rgba(255,255,255,.015) 8px 16px);
  pointer-events:none;
  z-index:1;
}
.img-frame::after{
  content:"";
  position:absolute;
  inset:8px;
  border:1px solid rgba(255,255,255,.05);
  pointer-events:none;
  z-index:2;
}
.img-frame:hover{border-color:rgba(177,77,255,.4)}
.img-frame--featured{grid-column:span 2;grid-row:span 2}
.ratio-4x3{aspect-ratio:4/3}
.ratio-16x9{aspect-ratio:16/9}
.ratio-1x1{aspect-ratio:1/1}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-size:12px;
  font-weight:500;
  color:var(--text-secondary);
  background:var(--bg-panel);
  border:1px solid var(--border);
  border-radius:20px;
  transition:all var(--transition-fast);
}
.tag::before{
  content:"#";
  color:var(--accent-purple);
  font-weight:700;
}
.tag:hover{
  color:var(--accent-blue);
  border-color:var(--accent-blue);
  box-shadow:0 0 10px rgba(0,229,255,.2);
}
.progress-line{
  position:fixed;
  top:0;
  left:0;
  z-index:150;
  height:2px;
  width:0;
  background:linear-gradient(90deg,var(--accent-purple),var(--accent-blue),var(--accent-pink));
  box-shadow:0 0 8px rgba(177,77,255,.5);
  transition:width .1s linear;
  pointer-events:none;
}
.back-top{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:140;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  background:var(--bg-panel);
  border:1px solid var(--border-bright);
  border-radius:50%;
  color:var(--text-secondary);
  font-size:20px;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:all var(--transition-base);
}
.back-top[data-visible="true"]{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.back-top:hover{
  color:var(--accent-pink);
  border-color:var(--accent-pink);
  box-shadow:0 0 14px rgba(255,122,198,.4);
}
:focus-visible{
  outline:2px solid var(--accent-blue);
  outline-offset:3px;
}
@media (max-width: 1024px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
  .none-medium{display:none}
  .nav-links__item{padding:8px 10px;font-size:13px}
}
@media (max-width: 760px){
  body{font-size:15px}
  .site-header{
    top:8px;
    padding:0 10px;
  }
  .site-header__inner{
    justify-content:space-between;
    gap:12px;
    padding:8px 12px;
  }
  .site-header__brand-text{font-size:18px}
  .header-progress{
    display:none;
  }
  .nav-toggle{
    display:flex;
    flex-shrink:0;
  }
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    background:rgba(18,18,26,.97);
    backdrop-filter:blur(18px);
    border:1px solid var(--border);
    border-radius:16px;
    padding:14px;
    box-shadow:0 18px 44px rgba(0,0,0,.6);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity var(--transition-base),transform var(--transition-base),visibility var(--transition-base);
    margin-inline:0;
  }
  .nav-links[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-links__item{
    padding:12px 14px;
    font-size:15px;
    border-radius:10px;
    color:var(--text-secondary);
  }
  .nav-links__item[aria-current="page"]{
    color:var(--text-primary);
    background:rgba(177,77,255,.12);
  }
  .nav-links__item::after{display:none}
  .map-grid{
    grid-template-columns:1fr;
  }
  .section--split{
    grid-template-columns:1fr;
  }
  .footer-grid{
    grid-template-columns:1fr;
    padding-top:48px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .progress-line{display:none}
}
@media (max-width: 480px){
  .container{padding-inline:16px}
  .btn{width:100%}
  .header-progress{display:none}
  .footer-extra{grid-template-columns:1fr}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .site-header__inner,.panel,.btn,.nav-links__item{transform:none!important}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .back-top[data-visible="true"],.skip-link:focus-visible,.nav-links[data-open="true"]{
    transition:none
  }
}