:root {
  --color-bg: #0A1E3F;
  --color-bg-deep: #004B49;
  --color-surface: #1A1A1A;
  --color-text: #F5F5F5;
  --color-text-muted: #A0A0A0;
  --color-accent: #FF6A00;
  --color-accent-bright: #FFB300;
  --color-live: #39FF14;
  --color-edge: #800020;
  --color-accent-rgb: 255, 106, 0;
  --color-text-rgb: 245, 245, 245;
  --color-muted-rgb: 160, 160, 160;
  --color-white-rgb: 255, 255, 255;
  --font-body: "Open Sans", "Noto Sans SC", sans-serif;
  --font-display: "Roboto Condensed", "Noto Sans SC", sans-serif;
  --font-mono: "Courier New", "Roboto Mono", monospace;
  --container-max: 1280px;
  --header-height-desktop: 84px;
  --header-height-mobile: 64px;
  --radius: 4px;
  --ease-fast: 200ms ease;
  --ease-fade: 600ms ease;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  color: var(--color-bg);
}
ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin: 0 0 0.5em;
}
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}
::selection {
  background-color: var(--color-accent);
  color: var(--color-bg);
}
.site-skip {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 1000;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 700;
  padding: 12px 20px;
  transition: top 200ms ease;
}
.site-skip:focus-visible {
  top: 12px;
}
.site-container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
.site-header {
  position: relative;
  background: var(--color-bg);
  border-bottom: 3px solid var(--color-edge);
}
.site-header-inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--header-height-desktop);
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  padding: 12px 0;
  position: relative;
}
.header-brand::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 2px;
  height: 28px;
  background: linear-gradient(180deg, var(--color-accent) 0%, transparent 100%);
}
.brand-logo {
  display: block;
  width: 36px;
  height: 36px;
  position: relative;
}
.brand-logo-stripe {
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--color-accent);
  transform-origin: 50% 100%;
}
.brand-logo-stripe-1 {
  transform: rotate(-45deg) translateY(4px);
  height: 28px;
}
.brand-logo-stripe-2 {
  left: 12px;
  transform: rotate(0deg);
  height: 34px;
  top: 1px;
  background: var(--color-text);
}
.brand-logo-stripe-3 {
  left: 22px;
  transform: rotate(45deg) translateY(4px);
  height: 28px;
  background: var(--color-live);
}
.brand-logo-dot {
  position: absolute;
  left: 31px;
  top: 14px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
}
.brand-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text);
  white-space: nowrap;
}
.site-nav-area {
  display: flex;
  align-items: center;
  gap: 0;
}
.site-nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.site-nav-list li {
  position: relative;
}
.site-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text);
  border-radius: 0;
  position: relative;
  transition: color var(--ease-fast);
  white-space: nowrap;
}
.site-nav-link::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 100%, 8px 100%);
  opacity: 0;
  transform: scaleX(0.1);
  transform-origin: left center;
  transition: opacity 200ms ease, transform 200ms ease;
  z-index: -1;
}
.site-nav-link:hover {
  color: var(--color-bg);
}
.site-nav-link:hover::before,
.site-nav-link[aria-current="page"]::before {
  opacity: 1;
  transform: scaleX(1);
}
.site-nav-link[aria-current="page"] {
  color: var(--color-accent);
  font-weight: 700;
}
.site-nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--color-live);
}
.header-quick-divider {
  width: 1px;
  height: 28px;
  background: rgba(var(--color-text-rgb), 0.25);
  margin: 0 16px;
}
.header-quick-links {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-quick-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  padding: 4px 0;
  transition: color var(--ease-fast);
}
.header-quick-link:hover {
  color: var(--color-accent);
}
.quick-link-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-live);
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--color-edge);
  background: var(--color-bg);
  border-radius: var(--radius);
  margin-left: auto;
}
.nav-toggle-icon {
  display: block;
  width: 18px;
  height: 14px;
  position: relative;
}
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--color-accent);
}
.nav-toggle-icon::before {
  top: 0;
  box-shadow: 0 6px 0 var(--color-text);
}
.nav-toggle-icon::after {
  bottom: 0;
  background: var(--color-live);
}
.nav-toggle-text {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
}
.site-nav-mobile {
  display: none;
}
.site-station-bar {
  background: var(--color-bg-deep);
  position: relative;
  min-height: 28px;
  border-top: 1px solid rgba(var(--color-accent-rgb), 0.5);
}
.station-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 28px;
  font-size: 12px;
}
.station-label {
  color: var(--color-text);
  font-weight: 700;
  letter-spacing: 0.1em;
  font-size: 11px;
  text-transform: uppercase;
}
.station-value {
  color: var(--color-live);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
}
.station-colon {
  display: inline-block;
  animation: station-colon-blink 1s step-start infinite;
}
@keyframes station-colon-blink {
  50% { opacity: 0.2; }
}
.station-slash {
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: -0.05em;
  font-size: 14px;
  margin-left: 6px;
}
.station-text {
  color: var(--color-text-muted);
  font-size: 12px;
  letter-spacing: 0.05em;
}
.station-orb {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-live);
  margin-left: auto;
  animation: station-orb-fade 1.5s ease-in-out infinite alternate;
}
@keyframes station-orb-fade {
  from { opacity: 1; }
  to { opacity: 0.2; }
}
.site-footer {
  background: var(--color-surface);
  color: var(--color-text);
  margin-top: 80px;
  position: relative;
}
.footer-velocity-line {
  height: 5px;
  background: repeating-linear-gradient(-45deg, var(--color-accent) 0 12px, transparent 12px 26px);
}
.footer-main {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 32px;
  padding-top: 48px;
  padding-bottom: 32px;
}
.footer-brand {
  grid-column: span 4;
}
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
}
.footer-desc {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.8;
}
.footer-contact-wrap {
  grid-column: span 4;
}
.footer-links-grid {
  grid-column: span 4;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.footer-link-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-edge);
  text-transform: uppercase;
  position: relative;
}
.footer-link-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 32px;
  height: 2px;
  background: var(--color-accent);
}
.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-contact-item {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.footer-contact-link {
  color: var(--color-text-muted);
  transition: color var(--ease-fast);
}
.footer-contact-link:hover {
  color: var(--color-accent);
}
.footer-contact-text {
  color: var(--color-text-muted);
}
.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-link {
  font-size: 14px;
  color: var(--color-text);
  transition: color var(--ease-fast);
}
.footer-link:hover {
  color: var(--color-live);
}
.footer-bottom {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 24px;
  padding-bottom: 24px;
  border-top: 1px solid rgba(var(--color-muted-rgb), 0.15);
  flex-wrap: wrap;
}
.footer-copyright {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
}
.footer-icp {
  font-size: 13px;
  color: var(--color-text-muted);
  transition: color var(--ease-fast);
}
.footer-icp:hover {
  color: var(--color-accent);
}
.footer-legal-links {
  display: flex;
  gap: 16px;
  margin-left: auto;
}
.footer-legal-link {
  font-size: 13px;
  color: var(--color-text-muted);
  transition: color var(--ease-fast);
}
.footer-legal-link:hover {
  color: var(--color-live);
}
.content-shell {
  padding-top: 56px;
  padding-bottom: 80px;
}
.card-stack {
  display: grid;
  gap: 24px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.section-anchor {
  scroll-margin-top: 120px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-bright));
  color: var(--color-bg);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 100%, 10px 100%);
  transition: transform var(--ease-fast), box-shadow var(--ease-fast);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--color-accent-rgb), 0.3);
  color: var(--color-bg);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 100%, 10px 100%);
  transition: background var(--ease-fast), color var(--ease-fast);
}
.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}
[data-fade] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--ease-fade), transform var(--ease-fade);
}
[data-fade][data-fade-delay="1"] {
  transition-delay: 120ms;
}
[data-fade][data-fade-delay="2"] {
  transition-delay: 240ms;
}
[data-fade][data-visible] {
  opacity: 1;
  transform: none;
}
@media (max-width: 1024px) {
  .site-header-inner {
    min-height: var(--header-height-mobile);
    padding: 0 16px;
  }
  .site-nav-area {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav-mobile {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-top: 2px solid var(--color-accent);
    border-bottom: 4px solid var(--color-bg-deep);
    padding: 0 16px 24px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 250ms ease, transform 250ms ease, visibility 250ms;
    z-index: 50;
  }
  .site-nav-mobile[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .site-nav-list-mobile {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 12px 0;
  }
  .site-nav-list-mobile li {
    border-bottom: 1px solid rgba(var(--color-text-rgb), 0.08);
  }
  .site-nav-list-mobile .site-nav-link {
    display: block;
    padding: 14px 8px;
    font-size: 16px;
    border-radius: 0;
  }
  .site-nav-list-mobile .site-nav-link::before {
    display: none;
  }
  .site-nav-list-mobile .site-nav-link[aria-current="page"] {
    color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.1);
  }
  .site-nav-mobile-quick {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 16px;
  }
  .site-nav-mobile-quick .header-quick-link {
    padding: 8px;
    background: rgba(var(--color-white-rgb), 0.03);
  }
  .footer-main {
    grid-template-columns: repeat(8, 1fr);
    gap: 24px;
  }
  .footer-brand {
    grid-column: span 8;
  }
  .footer-contact-wrap {
    grid-column: span 4;
  }
  .footer-links-grid {
    grid-column: span 4;
  }
}
@media (max-width: 640px) {
  .site-container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .brand-name {
    font-size: 18px;
  }
  .brand-logo {
    width: 30px;
    height: 30px;
  }
  .brand-logo-stripe {
    width: 3px;
  }
  .brand-logo-stripe-1 {
    transform: rotate(-45deg) translateY(3px);
    height: 22px;
  }
  .brand-logo-stripe-2 {
    left: 10px;
    height: 28px;
  }
  .brand-logo-stripe-3 {
    left: 18px;
    height: 22px;
  }
  .brand-logo-dot {
    left: 25px;
    width: 4px;
    height: 4px;
  }
  .station-inner {
    flex-wrap: wrap;
    gap: 6px;
    padding-top: 4px;
    padding-bottom: 4px;
    font-size: 11px;
  }
  .station-label {
    font-size: 10px;
  }
  .station-text {
    font-size: 11px;
  }
  .station-slash {
    display: none;
  }
  .station-orb {
    margin-left: 0;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 32px;
  }
  .footer-brand,
  .footer-contact-wrap,
  .footer-links-grid {
    grid-column: span 1;
  }
  .footer-links-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .footer-legal-links {
    margin-left: 0;
  }
  .footer-links-col-extra {
    padding-top: 24px;
  }
  .content-shell {
    padding-top: 32px;
    padding-bottom: 48px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
}
@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;
  }
  [data-fade] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .nav-toggle,
  .site-nav-mobile {
    transition: none;
  }
  a,
  button {
    transition: none;
  }
  .quick-link-dot,
  .station-colon,
  .station-orb {
    animation: none;
  }
  .station-colon {
    opacity: 1;
  }
}