:root{
  --color-bg:#0A192F;
  --color-bg-2:#1D263B;
  --color-accent:#64FFDA;
  --color-highlight:#FF9F1C;
  --color-metal:#C0C0C0;
  --color-text:#F5F5F5;
  --color-muted:#8892B0;
  --color-gold:#FFD700;
  --font-headline:'DIN Condensed','Arial Narrow',sans-serif;
  --font-number:'Roboto Mono','Courier New',monospace;
  --font-body:'Noto Sans SC','Microsoft YaHei',sans-serif;
  --container-width:1320px;
  --header-height:76px;
  --radius-lg:36px;
  --radius-md:20px;
  --radius-pill:999px;
  --shadow-float:0 20px 60px rgba(0,0,0,.45);
  --border-metal:1px solid rgba(192,192,192,.28);
  --transition-base:.3s ease;
  --safe-top:env(safe-area-inset-top,0px);
}

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

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  background:var(--color-bg);
  color:var(--color-text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  min-height:100vh;
  overflow-x:hidden;
}

#main-content{
  position:relative;
  min-height:60vh;
}

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

a{
  color:var(--color-accent);
  text-decoration:none;
  transition:color var(--transition-base);
}

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

button{
  font:inherit;
  color:inherit;
  background:none;
  border:none;
  cursor:pointer;
}

:focus-visible{
  outline:3px solid var(--color-accent);
  outline-offset:3px;
  border-radius:4px;
}

::selection{
  background:var(--color-accent);
  color:var(--color-bg);
}

.skip-link{
  position:fixed;
  top:calc(var(--safe-top));
  left:16px;
  background:var(--color-accent);
  color:var(--color-bg);
  font-weight:bold;
  font-size:14px;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  transform:translateY(-160%);
  transition:transform .3s ease;
  z-index:2000;
}

.skip-link:focus{
  transform:translateY(0);
}

.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  background:transparent;
  transition:background .4s ease,border-color .4s ease,box-shadow .4s ease;
  border-bottom:1px solid transparent;
}

.site-header.is-scrolled{
  background:rgba(10,25,47,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:rgba(192,192,192,.18);
  box-shadow:0 12px 40px rgba(0,0,0,.35);
}

.site-header__progress{
  position:absolute;
  top:calc(-2px + var(--safe-top));
  left:0;
  height:3px;
  width:0;
  background:linear-gradient(90deg,var(--color-accent),var(--color-highlight));
  border-radius:0 3px 3px 0;
  z-index:1002;
  pointer-events:none;
}

.site-header__inner{
  max-width:var(--container-width);
  margin:0 auto;
  padding:0 24px;
  height:var(--header-height);
  display:flex;
  align-items:center;
  gap:40px;
  position:relative;
}

.site-header__brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
  color:var(--color-text);
  font-family:var(--font-headline);
  font-size:28px;
  font-weight:700;
  letter-spacing:.04em;
}

.site-header__brand:hover{
  color:var(--color-text);
}

.site-header__brand-mark{
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,var(--color-accent),rgba(100,255,218,.35));
  color:var(--color-bg);
  font-family:var(--font-number);
  font-size:26px;
  font-weight:bold;
  border-radius:16px 4px 16px 4px;
  box-shadow:0 0 24px rgba(100,255,218,.35);
  transform:rotate(-3deg);
}

.site-header__brand-text span{
  color:var(--color-accent);
  font-family:var(--font-body);
  font-weight:500;
  font-size:14px;
  margin-left:2px;
}

.site-header__nav{
  margin-left:auto;
}

.site-header__nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  list-style:none;
}

.site-header__nav-link{
  display:block;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--color-muted);
  border-radius:var(--radius-pill);
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:color var(--transition-base),border-color var(--transition-base),background var(--transition-base);
}

.site-header__nav-link:hover,
.site-header__nav-link[aria-current="page"]{
  color:var(--color-text);
  border-color:rgba(100,255,218,.35);
  background:rgba(100,255,218,.08);
}

.site-header__cta{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:linear-gradient(135deg,var(--color-accent),rgba(100,255,218,.8));
  color:var(--color-bg);
  font-weight:700;
  font-size:14px;
  padding:10px 22px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(100,255,218,.5);
  box-shadow:0 0 18px rgba(100,255,218,.25);
  transition:transform var(--transition-base),box-shadow var(--transition-base);
  white-space:nowrap;
}

.site-header__cta:hover{
  color:var(--color-bg);
  transform:translateY(-2px);
  box-shadow:0 0 30px rgba(100,255,218,.45);
}

.site-header__nav-toggle{
  display:none;
  flex-direction:column;
  gap:6px;
  padding:12px 8px;
  margin-left:auto;
  border-radius:12px;
  z-index:1003;
}

.site-header__nav-toggle-bar{
  width:28px;
  height:2px;
  background:var(--color-text);
  border-radius:2px;
  transition:transform .35s ease,opacity .3s ease,background .3s ease;
}

.site-header__nav-toggle[aria-expanded="true"] .site-header__nav-toggle-bar:nth-child(1){
  transform:translateY(8px) rotate(45deg);
  background:var(--color-accent);
}

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

.site-header__nav-toggle[aria-expanded="true"] .site-header__nav-toggle-bar:nth-child(3){
  transform:translateY(-8px) rotate(-45deg);
  background:var(--color-accent);
}

.site-footer{
  background:linear-gradient(180deg,var(--color-bg),#07122a);
  border-top:1px solid rgba(192,192,192,.12);
  margin-top:80px;
  padding-top:80px;
}

.site-footer__inner{
  max-width:var(--container-width);
  margin:0 auto;
  padding:0 24px 64px;
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(0,2fr);
  gap:60px;
}

.site-footer__brand{
  max-width:420px;
}

.site-footer__logo{
  display:inline-block;
  font-family:var(--font-headline);
  font-size:34px;
  font-weight:700;
  color:var(--color-text);
  letter-spacing:.05em;
}

.site-footer__logo span{
  color:var(--color-accent);
  font-family:var(--font-body);
  font-size:15px;
  font-weight:500;
  margin-left:2px;
}

.site-footer__about{
  margin-top:20px;
  color:var(--color-muted);
  font-size:14px;
  line-height:1.8;
  max-width:36em;
}

.site-footer__grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:36px;
}

.site-footer__heading{
  font-family:var(--font-headline);
  font-size:18px;
  font-weight:600;
  color:var(--color-metal);
  letter-spacing:.08em;
  text-transform:uppercase;
  padding-bottom:12px;
  position:relative;
  margin-bottom:16px;
}

.site-footer__heading::after{
  content:""; 
  position:absolute;
  left:0;
  bottom:0;
  width:28px;
  height:2px;
  background:linear-gradient(90deg,var(--color-accent),transparent);
  border-radius:2px;
}

.site-footer__links,
.site-footer__contact{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:10px;
}

.site-footer__link,
.site-footer__contact li{
  color:var(--color-muted);
  font-size:14px;
  line-height:1.5;
}

.site-footer__link:hover{
  color:var(--color-accent);
}

.site-footer__bottom{
  background:rgba(0,0,0,.28);
  border-top:1px solid rgba(192,192,192,.1);
}

.site-footer__bottom-inner{
  max-width:var(--container-width);
  margin:0 auto;
  padding:18px 24px;
  display:flex;
  flex-wrap:wrap;
  gap:16px 24px;
  align-items:center;
  justify-content:space-between;
  color:var(--color-muted);
  font-size:13px;
  font-family:var(--font-number);
}

.site-footer__icp{
  color:var(--color-metal);
}

.site-footer__trust{
  color:var(--color-muted);
  font-family:var(--font-body);
}

.layout-container{
  max-width:var(--container-width);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  background:transparent;
  border:1px solid var(--color-accent);
  color:var(--color-accent);
  transition:all .3s ease;
  cursor:pointer;
}

.btn--primary{
  background:linear-gradient(135deg,var(--color-accent),#4fd9c0);
  color:var(--color-bg);
  border:none;
  box-shadow:0 0 28px rgba(100,255,218,.35);
}

.btn--primary:hover{
  transform:translateY(-3px);
  box-shadow:0 0 44px rgba(100,255,218,.5);
  color:var(--color-bg);
}

.btn--outline{
  background:rgba(100,255,218,.06);
}

.btn--outline:hover{
  background:rgba(100,255,218,.14);
  color:var(--color-accent);
  transform:translateY(-2px);
}

.section-label{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-family:var(--font-number);
  font-size:13px;
  font-weight:400;
  letter-spacing:.14em;
  color:var(--color-accent);
  text-transform:uppercase;
}

.section-label::before{
  content:"";
  width:32px;
  height:1px;
  background:var(--color-accent);
  opacity:.6;
}

.grid-tactical{
  display:grid;
  gap:22px;
  grid-template-columns:repeat(12,1fr);
}

.card-slant{
  position:relative;
  background:var(--color-bg-2);
  border-radius:var(--radius-lg);
  padding:28px;
  border:var(--border-metal);
  clip-path:polygon(0 0,calc(100% - 32px) 0,100% 32px,100% 100%,32px 100%,0 calc(100% - 32px));
  transition:transform .3s ease,border-color .3s ease;
}

.card-slant:hover{
  transform:translateY(-6px);
  border-color:rgba(100,255,218,.5);
}

.image-stage{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-md);
  background:linear-gradient(145deg,#101d38,#1d3557);
  border:1px solid rgba(192,192,192,.18);
  min-height:180px;
}

.image-stage::before{
  content:"";
  display:block;
  padding-bottom:var(--image-ratio,56.25%);
}

.image-stage[data-image-ratio="16\/9"]{ --image-ratio:56.25%; }
.image-stage[data-image-ratio="4\/3"]{ --image-ratio:75%; }
.image-stage[data-image-ratio="1\/1"]{ --image-ratio:100%; }

[data-reveal]{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .7s ease,transform .7s ease;
}

[data-reveal].is-revealed{
  opacity:1;
  transform:translateY(0);
}

@media (max-width: 1024px){
  .site-footer__inner{
    grid-template-columns:1fr;
    gap:40px;
  }

  .site-header__nav{
    position:fixed;
    top:calc(var(--header-height) + var(--safe-top));
    left:0;
    right:0;
    margin:0;
    padding:24px;
    background:rgba(10,25,47,.96);
    -webkit-backdrop-filter:blur(20px);
    backdrop-filter:blur(20px);
    border-bottom:1px solid rgba(100,255,218,.25);
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
    z-index:999;
  }

  .site-header__nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }

  .site-header__nav-list{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }

  .site-header__nav-link{
    font-size:18px;
    padding:12px 18px;
    width:100%;
    border-radius:16px;
  }

  .site-header__cta{
    margin-left:auto;
  }

  .site-header__nav-toggle{
    display:flex;
    order:3;
  }
}

@media (max-width: 640px){
  .site-header__inner{
    gap:12px;
    padding:0 16px;
  }

  .site-header__brand-text{
    font-size:22px;
  }

  .site-header__cta{
    display:none;
  }

  .site-header__nav-toggle{
    display:flex;
  }

  .site-header__nav{
    padding:20px 16px;
  }

  .site-footer__grid{
    grid-template-columns:1fr;
    gap:28px;
  }

  .site-footer__bottom-inner{
    flex-direction:column;
    align-items:flex-start;
  }

  .grid-tactical{
    grid-template-columns:1fr;
  }
}

@media (prefers-reduced-motion: reduce){
  html{
    scroll-behavior:auto;
  }
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  [data-reveal]{
    opacity:1;
    transform:none;
  }
}