:root {
  --c-bg: #0B1220;
  --c-panel: #111C33;
  --c-cyan: #00E5FF;
  --c-orange: #FF6A00;
  --c-violet: #7B61FF;
  --c-gray: #A0B2CC;
  --c-white: #FFFFFF;
  --c-pink: #FF3366;
  --font-head: 'Rajdhani', 'Arial Black', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --font-accent: 'Orbitron', 'Roboto Mono', 'SFMono-Regular', 'Courier New', monospace;
  --header-h: 68px;
  --container-w: 1320px;
  --radius: 14px;
  --tr: 0.22s cubic-bezier(0.2, 0.7, 0.3, 1);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --cut: 18px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}

body {
  background: var(--c-bg);
  color: var(--c-gray);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  padding-top: calc(var(--header-h) + 32px);
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--c-white);
  line-height: 1.1;
  letter-spacing: 0.02em;
  font-weight: 800;
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 2rem); }

p { margin-bottom: 1.2em; }
a { color: var(--c-cyan); }

.section { padding: 48px 0; }

.display {
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.05;
}

.kicker {
  font-family: var(--font-accent);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-orange);
  margin-bottom: 8px;
}

.lead {
  font-size: 1.125rem;
  line-height: 1.8;
}

.text-block {
  max-width: 68ch;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--tr);
}

.btn-orange {
  background: linear-gradient(90deg, var(--c-orange), #FF8A3D);
  color: #fff;
}

.btn-orange:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(255, 106, 0, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--c-cyan);
  border-color: rgba(0, 229, 255, 0.4);
}

.btn-ghost:hover {
  background: rgba(0, 229, 255, 0.08);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  padding: 10px 20px;
  background: var(--c-cyan);
  color: #041022;
  font-family: var(--font-head);
  font-weight: 700;
  border-radius: 6px;
  text-decoration: none;
  transform: translateY(-140%);
  transition: transform 0.2s ease;
}

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

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-orange));
  z-index: 300;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 20px;
}

.header-inner {
  position: relative;
  max-width: var(--container-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  height: var(--header-h);
  padding: 0 14px 0 20px;
  background: linear-gradient(160deg, rgba(13, 20, 38, 0.92), rgba(8, 14, 28, 0.94));
  border: 1px solid rgba(0, 229, 255, 0.14);
  border-radius: 60px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  width: 34px;
  height: 32px;
}

.brand-mark-bar {
  display: block;
  width: 8px;
  border-radius: 2px 2px 1px 1px;
  transition: transform 0.2s, background 0.2s;
}

.brand-mark-bar-a { height: 18px; background: var(--c-cyan); }
.brand-mark-bar-b { height: 28px; background: var(--c-orange); }
.brand-mark-bar-c { height: 12px; background: var(--c-white); }

.brand:hover .brand-mark-bar {
  transform: translateY(-2px);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--c-white);
  letter-spacing: 0.04em;
}

.brand-label {
  font-family: var(--font-accent);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-top: 2px;
}

.main-nav {
  margin-left: auto;
  margin-right: auto;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--c-gray);
  text-decoration: none;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
  border-radius: 28px;
  transition: var(--tr);
}

.nav-link:hover {
  color: var(--c-white);
  background: rgba(0, 229, 255, 0.06);
}

.nav-link[aria-current="page"] {
  color: var(--c-white);
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.14), rgba(0, 229, 255, 0.03));
  border-color: rgba(0, 229, 255, 0.3);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  background: linear-gradient(90deg, var(--c-orange), #FF8A3D);
  border-radius: 30px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(255, 106, 0, 0.22);
  transition: var(--tr);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 106, 0, 0.35);
}

.cta-btn-icon {
  font-size: 0.8rem;
  line-height: 1;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 50%;
  cursor: pointer;
}

.nav-toggle-box {
  position: relative;
  width: 20px;
  height: 14px;
}

.nav-toggle-inner,
.nav-toggle-inner::before,
.nav-toggle-inner::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--c-cyan);
  transition: var(--tr);
}

.nav-toggle-inner { top: 6px; }
.nav-toggle-inner::before { top: -5px; }
.nav-toggle-inner::after { top: 5px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-inner {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-inner::before {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-inner::after {
  transform: translateY(-5px) rotate(-45deg);
}

.site-footer {
  position: relative;
  background: linear-gradient(180deg, #0A101E 0%, #080C16 100%);
  border-top: 1px solid rgba(0, 229, 255, 0.08);
  margin-top: 80px;
}

.footer-topline {
  height: 3px;
  background: linear-gradient(90deg, var(--c-cyan) 0%, rgba(0, 229, 255, 0) 28%, rgba(255, 106, 0, 0) 72%, var(--c-orange) 100%);
  opacity: 0.6;
}

.footer-inner {
  padding-top: 48px;
  padding-bottom: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.3fr;
  gap: 48px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  margin-bottom: 16px;
}

.footer-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  font-family: var(--font-accent);
  font-weight: 800;
  font-size: 1.1rem;
  color: #0B1220;
  background: linear-gradient(135deg, var(--c-cyan), var(--c-orange));
  border-radius: 10px 10px 10px 4px;
  margin-right: 10px;
}

.footer-logo-name {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--c-white);
  letter-spacing: 0.04em;
}

.footer-trust {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-gray);
  max-width: 42ch;
}

.footer-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

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

.footer-links li {
  margin-bottom: 6px;
}

.footer-links a {
  color: var(--c-gray);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-links a:hover {
  color: var(--c-cyan);
  padding-left: 4px;
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.92rem;
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-family: var(--font-accent);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--c-cyan);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.12);
  border-radius: 6px;
  flex-shrink: 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid rgba(0, 229, 255, 0.08);
  padding: 18px 0;
  margin-top: 44px;
  font-size: 0.85rem;
  color: var(--c-gray);
}

.footer-icp {
  font-family: var(--font-accent);
  color: rgba(160, 178, 204, 0.7);
  letter-spacing: 0.06em;
}

.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 0.85rem;
  padding: 12px 0;
  margin: 0 0 24px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--c-gray);
}

.breadcrumb li + li::before {
  content: "/";
  color: rgba(160, 178, 204, 0.4);
}

.breadcrumb a {
  color: var(--c-cyan);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

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

.panel-cut {
  position: relative;
  background: linear-gradient(160deg, rgba(17, 28, 51, 0.85), rgba(10, 16, 30, 0.9));
  padding: 32px;
  --cut: 18px;
  clip-path: polygon(0 var(--cut), var(--cut) 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.panel-cut::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 48%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), transparent);
  pointer-events: none;
}

.card-hud {
  position: relative;
  background: linear-gradient(160deg, rgba(17, 28, 51, 0.9), rgba(9, 15, 30, 0.95));
  border: 1px solid rgba(0, 229, 255, 0.1);
  padding: 24px;
  transition: var(--tr);
}

.card-hud::before,
.card-hud::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.card-hud::before {
  top: 0;
  left: 0;
  border-top: 2px solid var(--c-cyan);
  border-left: 2px solid var(--c-cyan);
}

.card-hud::after {
  bottom: 0;
  right: 0;
  border-bottom: 2px solid var(--c-orange);
  border-right: 2px solid var(--c-orange);
}

.card-hud:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.28);
}

.card-pulse {
  position: relative;
  background: var(--c-panel);
  border: 1px solid rgba(0, 229, 255, 0.08);
  border-radius: 4px;
  padding: 20px;
  transition: var(--tr);
}

.card-pulse:hover {
  border-color: var(--c-orange);
  box-shadow: 0 8px 30px rgba(255, 106, 0, 0.12);
}

.data-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 229, 255, 0.06);
}

.data-label {
  font-family: var(--font-accent);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gray);
}

.data-value {
  font-family: var(--font-accent);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-white);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.grid-gap-lg {
  gap: 40px;
}

.image-frame {
  position: relative;
  overflow: hidden;
  background: var(--c-panel);
  border: 1px solid rgba(0, 229, 255, 0.1);
  border-radius: 4px;
  aspect-ratio: var(--ratio, 16 / 10);
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.06), transparent 55%);
  pointer-events: none;
}

.hud-frame {
  position: relative;
}

.hud-frame::before,
.hud-frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
  z-index: 2;
}

.hud-frame::before {
  top: 0;
  left: 0;
  border-top: 2px solid var(--c-cyan);
  border-left: 2px solid var(--c-cyan);
}

.hud-frame::after {
  bottom: 0;
  right: 0;
  border-bottom: 2px solid var(--c-orange);
  border-right: 2px solid var(--c-orange);
}

.hud-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 8px var(--c-cyan);
}

.scanline {
  position: relative;
  height: 1px;
  overflow: hidden;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.35), transparent);
}

.scanline::after {
  content: "";
  position: absolute;
  top: 0;
  left: -30%;
  width: 30%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.7), transparent);
  animation: scan 3.2s linear infinite;
}

@keyframes scan {
  0% { left: -30%; }
  100% { left: 130%; }
}

.slide-target {
  display: block;
  height: 2px;
  width: 100%;
  max-width: 340px;
  background: repeating-linear-gradient(90deg, rgba(0, 229, 255, 0.5) 0 6px, transparent 6px 12px);
  transform: rotate(-18deg);
  transform-origin: right center;
  pointer-events: none;
}

.site-js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.site-js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 880px) {
  body {
    padding-top: calc(var(--header-h) + 26px);
  }

  .header-inner {
    border-radius: 40px;
    padding: 0 10px 0 16px;
    gap: 8px;
  }

  .brand-label {
    display: none;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    width: 100%;
    background: linear-gradient(160deg, rgba(11, 18, 32, 0.98), rgba(7, 12, 26, 0.98));
    border: 1px solid rgba(0, 229, 255, 0.18);
    border-radius: 18px;
    padding: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.98);
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  }

  .main-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    padding: 13px 16px;
    border-radius: 10px;
    font-size: 1.05rem;
  }

  .header-cta {
    gap: 8px;
  }

  .cta-btn {
    padding: 9px 14px;
    font-size: 0.88rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 18px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding-left: 12px;
  }

  .cta-btn {
    padding: 8px 10px;
    font-size: 0.85rem;
  }

  .brand-name {
    font-size: 1.12rem;
  }

  .brand-mark {
    width: 28px;
    height: 28px;
  }

  .nav-toggle {
    width: 40px;
    height: 40px;
  }
}

@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;
  }

  .scanline::after {
    animation: none;
  }

  .site-js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}