*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#0a0e14;
  --surface:#121a25;
  --surface-highlight:#1a2736;
  --accent:#00ff88;
  --blue:#00ccff;
  --alert:#ff4c4c;
  --text:#e8edf4;
  --text-dim:#8b9bb4;
  --border:#263040;
  --gradient:linear-gradient(90deg,#00ff88,#00ccff);
  --font-display:'Orbitron','Noto Sans SC',sans-serif;
  --font-body:'Inter','Noto Sans SC',sans-serif;
  --header-height:76px;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-pill:999px;
  --shadow-accent:0 0 24px rgba(0,255,136,0.2);
}

body{
  font-family:var(--font-body);
  background-color:var(--bg);
  background-image:radial-gradient(rgba(0,255,136,0.03) 1px,transparent 1px);
  background-size:32px 32px;
  color:var(--text);
  line-height:1.7;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

body::before,
body::after{
  content:"";
  position:fixed;
  top:0;
  bottom:0;
  width:60px;
  z-index:5;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(0,255,136,0.05),transparent 45%,rgba(0,204,255,0.05));
  border-right:1px solid rgba(0,255,136,0.06);
}

body::after{
  right:0;
  border-right:0;
  border-left:1px solid rgba(0,255,136,0.06);
  background:linear-gradient(180deg,transparent 45%,rgba(0,204,255,0.05));
}

html{
  scroll-behavior:smooth;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.2;
  letter-spacing:0.02em;
}

p{
  line-height:1.7;
}

a{
  color:var(--blue);
  text-decoration:none;
}

a:hover{
  color:var(--accent);
}

button{
  font-family:var(--font-body);
  border:0;
  background:none;
  cursor:pointer;
  color:inherit;
}

img{
  max-width:100%;
  display:block;
}

input,textarea,select{
  font-family:var(--font-body);
  color:var(--text);
}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:4px;
}

.skip-link{
  position:absolute;
  left:16px;
  top:-60px;
  z-index:300;
  padding:10px 18px;
  border-radius:0 0 14px 14px;
  background:var(--accent);
  color:#05080c;
  font-weight:700;
  transition:top 0.2s;
}

.skip-link:focus{
  top:0;
}

.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;
}

.reading-progress{
  position:absolute;
  top:0;
  left:0;
  height:3px;
  width:100%;
  background-image:var(--gradient);
  transform:scaleX(0);
  transform-origin:0 50%;
  z-index:60;
  pointer-events:none;
}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(10,14,20,0.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}

.site-header::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:linear-gradient(90deg,transparent,rgba(0,255,136,0.45) 25%,rgba(0,204,255,0.5) 75%,transparent);
  pointer-events:none;
}

.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:28px;
  max-width:1440px;
  margin:0 auto;
  padding:0 32px;
  height:var(--header-height);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:1px;
  white-space:nowrap;
  flex-shrink:0;
}

.brand-mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  background-image:var(--gradient);
  color:#05080c;
  font-weight:900;
  font-size:1.25rem;
  border-radius:14px;
  clip-path:polygon(0 0,100% 0,calc(100% - 10px) 100%,0 100%);
  box-shadow:var(--shadow-accent);
}

.brand-text{
  font-size:1.3rem;
  letter-spacing:2px;
}

.brand-badge{
  display:inline-block;
  padding:2px 10px;
  border-radius:999px;
  background:rgba(255,76,76,0.12);
  border:1px solid rgba(255,76,76,0.4);
  color:#ff6b6b;
  font-size:0.68rem;
  font-weight:700;
  letter-spacing:1px;
}

.site-nav{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}

.nav-list{
  display:flex;
  gap:4px;
  list-style:none;
}

.nav-link{
  display:block;
  padding:10px 14px;
  border-radius:12px;
  color:var(--text-dim);
  font-weight:500;
  font-size:0.95rem;
  position:relative;
  transition:color 0.2s,background 0.2s;
}

.nav-link:hover{
  color:var(--text);
  background:rgba(0,255,136,0.06);
}

.nav-link[aria-current="page"]{
  color:var(--accent);
  background:rgba(0,255,136,0.08);
}

.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:4px;
  height:2px;
  border-radius:999px;
  background-image:var(--gradient);
}

.nav-tools{
  display:flex;
  align-items:center;
  gap:12px;
}

.search-box{
  position:relative;
  width:220px;
}

.search-input{
  width:100%;
  padding:10px 14px 10px 38px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--text);
  font-size:0.875rem;
  outline:none;
  transition:border-color 0.2s,box-shadow 0.2s,background 0.2s;
}

.search-input::placeholder{
  color:var(--text-dim);
}

.search-input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(0,255,136,0.15);
  background:rgba(0,255,136,0.04);
}

.search-icon{
  position:absolute;
  left:14px;
  top:50%;
  width:14px;
  height:14px;
  border:2px solid var(--text-dim);
  border-radius:50%;
  transform:translateY(-58%);
  pointer-events:none;
}

.search-icon::after{
  content:"";
  position:absolute;
  right:-4px;
  bottom:-3px;
  width:7px;
  height:2px;
  background:var(--text-dim);
  transform:rotate(45deg);
  border-radius:2px;
}

.version-toggle{
  padding:10px 18px;
  border-radius:999px;
  border:1px solid var(--blue);
  background:rgba(0,204,255,0.1);
  color:var(--blue);
  font-weight:700;
  font-size:0.85rem;
  letter-spacing:1px;
  white-space:nowrap;
  transition:background 0.2s,color 0.2s,box-shadow 0.2s,transform 0.2s;
}

.version-toggle:hover{
  background:var(--blue);
  color:#05080c;
  box-shadow:0 0 20px rgba(0,204,255,0.4);
  transform:translateY(-1px);
}

.header-actions{
  display:none;
  align-items:center;
  gap:8px;
}

.nav-toggle{
  display:none;
  width:48px;
  height:48px;
  padding:12px;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border);
  border-radius:14px;
}

.nav-toggle-bar{
  display:block;
  height:2px;
  margin:5px 0;
  background:var(--text);
  border-radius:2px;
  transition:transform 0.3s,opacity 0.3s;
}

.nav-toggle:hover .nav-toggle-bar{
  background:var(--accent);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){
  opacity:0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}

.news-ticker{
  height:36px;
  display:flex;
  align-items:center;
  overflow:hidden;
  border-top:1px solid rgba(0,255,136,0.16);
  background:rgba(0,255,136,0.045);
}

.ticker-label{
  flex-shrink:0;
  display:flex;
  align-items:center;
  padding:0 18px;
  height:100%;
  background-image:var(--gradient);
  color:#05080c;
  font-size:0.75rem;
  font-weight:800;
  letter-spacing:2px;
  clip-path:polygon(0 0,100% 0,calc(100% - 12px) 100%,0 100%);
}

.ticker-track{
  flex:1;
  overflow:hidden;
  white-space:nowrap;
}

.ticker-track span{
  display:inline-block;
  padding-left:100%;
  color:var(--text-dim);
  font-size:0.85rem;
  letter-spacing:1px;
  animation:ticker 42s linear infinite;
}

.news-ticker:hover .ticker-track span,
.news-ticker:focus-within .ticker-track span{
  animation-play-state:paused;
}

@keyframes ticker{
  to{transform:translateX(-100%)}
}

.site-footer{
  position:relative;
  padding:64px 0 28px;
  background:#0b1018;
  border-top:1px solid var(--border);
  margin-top:80px;
}

.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--accent),var(--blue),var(--accent),transparent);
  opacity:0.6;
}

.footer-inner{
  max-width:1440px;
  margin:0 auto;
  padding:0 32px;
}

.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.5fr;
  gap:48px;
  padding-bottom:52px;
}

.brand-footer{
  margin-bottom:4px;
}

.footer-about{
  margin-top:24px;
  color:var(--text-dim);
  max-width:36ch;
}

.footer-trust{
  margin-top:18px;
  padding:12px 18px;
  border-left:3px solid var(--accent);
  background:rgba(0,255,136,0.05);
  color:var(--text-dim);
  font-size:0.8rem;
  line-height:1.6;
}

.footer-heading{
  color:var(--text);
  font-size:1rem;
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:20px;
}

.footer-heading::after{
  content:"";
  display:block;
  width:32px;
  height:2px;
  background-image:var(--gradient);
  margin-top:8px;
}

.footer-list{
  list-style:none;
}

.footer-list li{
  margin-bottom:12px;
}

.footer-link{
  color:var(--text-dim);
  font-size:0.9rem;
  transition:color 0.2s,padding-left 0.2s;
}

.footer-link:hover{
  color:var(--accent);
  padding-left:4px;
}

.footer-contact{
  color:var(--text-dim);
  font-size:0.9rem;
  line-height:1.8;
  margin-bottom:8px;
}

.footer-bottom{
  border-top:1px solid var(--border);
  padding-top:20px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  color:var(--text-dim);
  font-size:0.85rem;
}

.main-content{
  min-height:70vh;
}

.content-container{
  max-width:1440px;
  margin:0 auto;
  padding:0 32px;
}

.split-layout{
  display:grid;
  grid-template-columns:minmax(0,0.85fr) minmax(0,2.15fr);
  gap:36px;
  align-items:start;
}

.split-aside{
  position:sticky;
  top:calc(var(--header-height) + 48px);
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  list-style:none;
  margin:24px 0;
  padding:0;
}

.breadcrumb-item{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--text-dim);
  font-size:0.85rem;
}

.breadcrumb-item:not(:last-child)::after{
  content:"/";
  color:var(--border);
}

.breadcrumb-link{
  color:var(--text-dim);
}

.breadcrumb-link:hover{
  color:var(--accent);
}

.breadcrumb-item[aria-current="page"]{
  color:var(--text);
}

.page-hero{
  padding:32px 0 40px;
}

.hero-title{
  font-size:clamp(2rem,4vw,3rem);
  margin-bottom:16px;
  letter-spacing:0.02em;
}

.hero-subtitle{
  color:var(--text-dim);
  font-size:1.05rem;
  max-width:60ch;
}

.section-head{
  margin-bottom:28px;
}

.section-title{
  margin-bottom:8px;
}

.section-title::after{
  content:"";
  display:block;
  width:64px;
  height:4px;
  border-radius:999px;
  background-image:var(--gradient);
  margin-top:12px;
  box-shadow:var(--shadow-accent);
}

.section-subtitle{
  color:var(--text-dim);
  max-width:70ch;
}

.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

.card{
  position:relative;
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:24px;
  transition:transform 0.25s,border-color 0.25s,box-shadow 0.25s;
}

.card::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:3px;
  background-image:var(--gradient);
  opacity:0;
  transition:opacity 0.25s;
}

.card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,255,136,0.35);
  box-shadow:0 12px 40px rgba(0,0,0,0.4);
}

.card:hover::before{
  opacity:1;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:999px;
  font-weight:700;
  font-size:0.9rem;
  letter-spacing:0.5px;
  border:1px solid transparent;
  transition:transform 0.2s,box-shadow 0.2s,background 0.2s,color 0.2s;
}

.btn:hover{
  transform:translateY(-2px);
}

.btn-primary{
  background-image:var(--gradient);
  color:#05080c;
  box-shadow:0 8px 30px rgba(0,255,136,0.2);
}

.btn-primary:hover{
  box-shadow:0 8px 40px rgba(0,255,136,0.4);
}

.btn-ghost{
  border-color:var(--blue);
  color:var(--blue);
  background:rgba(0,204,255,0.06);
}

.btn-ghost:hover{
  background:rgba(0,204,255,0.14);
  box-shadow:0 8px 30px rgba(0,204,255,0.2);
}

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.filter-btn{
  padding:8px 20px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--border);
  color:var(--text-dim);
  font-size:0.85rem;
  font-weight:600;
  transition:background 0.2s,border-color 0.2s,color 0.2s,box-shadow 0.2s;
}

.filter-btn:hover{
  border-color:var(--accent);
  color:var(--accent);
}

.filter-btn[aria-pressed="true"]{
  background:var(--accent);
  border-color:var(--accent);
  color:#05080c;
  box-shadow:0 0 20px rgba(0,255,136,0.3);
}

[data-filter-hidden]{
  display:none !important;
}

[data-filter-empty]{
  display:none;
}

[data-filter-empty][data-show]{
  display:block;
}

.has-grid-lines{
  background-image:linear-gradient(rgba(0,255,136,0.04) 1px,transparent 1px),linear-gradient(90deg,rgba(0,204,255,0.04) 1px,transparent 1px);
  background-size:48px 48px;
}

.text-gradient{
  background-image:var(--gradient);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.top-btn{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:90;
  width:48px;
  height:48px;
  border-radius:50%;
  border:1px solid rgba(0,255,136,0.5);
  background:rgba(10,14,20,0.9);
  color:var(--accent);
  font-size:1.3rem;
  box-shadow:0 0 24px rgba(0,255,136,0.2);
  opacity:0;
  transform:translateY(8px);
  pointer-events:none;
  transition:opacity 0.3s,transform 0.3s;
}

.top-btn[data-show]{
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}

body[data-version="legacy"]{
  --bg:#0d1220;
  --surface:#151c2a;
  --surface-highlight:#1e2838;
  --text:#eef1f6;
  --text-dim:#8fa0b8;
  --accent:#ffb000;
  --blue:#4aa8ff;
  --border:#2b3546;
  --gradient:linear-gradient(90deg,#ffb000,#4aa8ff);
  --radius-lg:10px;
  --radius-md:6px;
  --radius-pill:8px;
}

body[data-version="legacy"] .site-header{
  background:rgba(13,18,32,0.92);
}

body[data-version="legacy"] .nav-link[aria-current="page"]{
  color:var(--blue);
  background:rgba(74,168,255,0.1);
}

body[data-version="legacy"] .nav-link[aria-current="page"]::after{
  background-image:var(--gradient);
}

body[data-version="legacy"] .card{
  border-radius:var(--radius-lg);
}

body[data-version="legacy"] .brand-mark,
body[data-version="legacy"] .ticker-label,
body[data-version="legacy"] .btn-primary{
  border-radius:var(--radius-md);
  clip-path:none;
}

body[data-version="legacy"] .top-btn{
  border-radius:var(--radius-md);
}

@media(prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto;
  }
  *,*::before,*::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
  }
  .reading-progress{
    display:none;
  }
  .ticker-track span{
    animation:none;
    padding-left:0;
  }
}

@media(max-width:1199px){
  .search-box{
    width:180px;
  }
  .card-grid{
    grid-template-columns:repeat(2,1fr);
  }
}

@media(max-width:1023px){
  .header-inner{
    padding:0 20px;
    gap:12px;
  }
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    z-index:80;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    padding:16px 20px 24px;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    box-shadow:0 30px 50px rgba(0,0,0,0.5);
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:transform 0.3s,opacity 0.3s,visibility 0.3s;
  }
  .site-nav[data-open]{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
  }
  .nav-list{
    flex-direction:column;
    gap:6px;
  }
  .nav-link{
    padding:14px 16px;
    font-size:1.05rem;
  }
  .nav-tools{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
  }
  .search-box{
    width:100%;
  }
  .header-actions{
    display:flex;
    margin-left:auto;
  }
  .nav-toggle{
    display:block;
  }
  .split-layout{
    grid-template-columns:1fr;
  }
  .split-aside{
    position:static;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
}

@media(max-width:767px){
  body::before,
  body::after{
    width:0;
  }
  .header-inner{
    height:64px;
  }
  :root{
    --header-height:64px;
  }
  .brand-text{
    font-size:1.1rem;
  }
  .brand-mark{
    width:38px;
    height:38px;
    font-size:1.1rem;
  }
  .brand-badge{
    display:none;
  }
  .news-ticker{
    height:32px;
  }
  .ticker-label{
    padding:0 14px;
    font-size:0.68rem;
  }
  .ticker-track span{
    font-size:0.78rem;
  }
  .content-container{
    padding:0 20px;
  }
  .footer-inner{
    padding:0 20px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
    padding-bottom:36px;
  }
  .card-grid{
    grid-template-columns:1fr;
    gap:16px;
  }
  .split-layout{
    gap:20px;
  }
  .top-btn{
    right:16px;
    bottom:16px;
    width:44px;
    height:44px;
  }
}

@media(min-width:1024px) and (max-width:1199px){
  .nav-link{
    font-size:0.88rem;
    padding-left:10px;
    padding-right:10px;
  }
  .search-box{
    width:160px;
  }
  .version-toggle{
    padding-left:14px;
    padding-right:14px;
    font-size:0.8rem;
  }
}