:root {
  --rail-width: 64px;
  --bg-deep: #0A0E17;
  --bg-raised: #121A2B;
  --primary: #00F5A0;
  --accent: #FF7A1A;
  --aux-blue: #5B7FA6;
  --text-main: #EAF0F6;
  --text-muted: #9AA8B9;
  --glass: rgba(255,255,255,0.06);
  --success: #00B894;
  --font-ui: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.75;
  padding-left: var(--rail-width);
  min-height: 100vh;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: calc(var(--rail-width) + 8px);
  background: var(--primary);
  color: var(--bg-deep);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform 0.2s;
  z-index: 2000;
  pointer-events: auto;
}

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

.site-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 0 12px rgba(0, 245, 160, 0.4);
  z-index: 2000;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-width);
  z-index: 1000;
  pointer-events: none;
}

.site-rail {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0 20px;
  background:
    linear-gradient(180deg, rgba(0, 245, 160, 0.02), transparent 30%),
    linear-gradient(180deg, #0d1320, #0a0e17);
  overflow: hidden;
}

.site-rail::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--primary), var(--accent), transparent);
  opacity: 0.4;
}

.site-rail__init {
  writing-mode: vertical-rl;
  font-weight: 900;
  font-size: 1.1rem;
  font-style: italic;
  letter-spacing: 0.12em;
  color: var(--primary);
  text-shadow: 0 0 12px rgba(0, 245, 160, 0.3);
}

.site-rail__axis {
  flex: 1;
  width: 2px;
  min-height: 32px;
  margin: 16px 0;
  background: linear-gradient(180deg, var(--primary), var(--accent) 70%, transparent);
  border-radius: 2px;
  position: relative;
}

.site-rail__axis::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: var(--primary);
  filter: blur(4px);
  animation: railPulse 3s ease-in-out infinite;
}

@keyframes railPulse {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  50% {
    transform: translateY(3px);
    opacity: 1;
  }
}

.site-rail__meta {
  writing-mode: vertical-rl;
  color: var(--text-muted);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.7;
}

.site-nav {
  position: fixed;
  top: 18px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 14, 23, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 6px 10px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  pointer-events: auto;
  z-index: 1001;
  max-width: calc(100vw - 70px);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-main);
  padding: 6px 8px;
  border-radius: 999px;
  transition: background 0.2s;
}

.site-brand:hover {
  background: rgba(255, 255, 255, 0.04);
}

.site-brand__grid {
  display: grid;
  grid-template-columns: repeat(2, 4px);
  gap: 3px;
  width: 14px;
  height: 12px;
}

.site-brand__grid i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px rgba(0, 245, 160, 0.6);
}

.site-brand__grid i:nth-child(2) {
  background: var(--accent);
  box-shadow: 0 0 8px rgba(255, 122, 26, 0.5);
}

.site-brand__grid i:nth-child(3) {
  background: var(--aux-blue);
  box-shadow: none;
}

.site-brand__grid i:nth-child(4) {
  background: var(--primary);
}

.site-brand__title {
  font-size: 1.05rem;
  font-weight: 800;
  font-style: italic;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-main);
  transition: background 0.2s;
}

.site-nav__toggle:hover {
  background: rgba(255, 255, 255, 0.06);
}

.nav-toggle-box {
  width: 18px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-box span {
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s, opacity 0.3s;
}

.site-nav[data-open="true"] .nav-toggle-box span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav[data-open="true"] .nav-toggle-box span:nth-child(2) {
  opacity: 0;
}

.site-nav[data-open="true"] .nav-toggle-box span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  display: block;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
  color: var(--primary);
  background: rgba(0, 245, 160, 0.1);
}

.site-nav__list a[aria-current="page"] {
  background: var(--primary);
  color: var(--bg-deep);
  font-weight: 700;
}

.site-footer {
  background: linear-gradient(180deg, #0d1320 0%, var(--bg-deep) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  margin-top: 5rem;
  padding: 4rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.footer-brand__title {
  font-size: 1.8rem;
  font-weight: 900;
  font-style: italic;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.footer-brand__title span {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--aux-blue);
  margin-top: 0.2rem;
  font-style: normal;
}

.footer-brand__desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 400px;
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 1rem;
}

.footer-links ul,
.footer-contact ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.footer-contact li {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.site-footer__bottom {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-credit {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
}

.footer-credit__icp {
  letter-spacing: 0.05em;
}

.site-footer__beam {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
  background-size: 200% 100%;
  animation: beamFlow 6s linear infinite;
  opacity: 0.6;
}

@keyframes beamFlow {
  from {
    background-position: 200% 0;
  }
  to {
    background-position: -200% 0;
  }
}

.section {
  padding: 4rem 0;
}

.split-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  min-height: 80vh;
  padding: 4rem 0;
}

.split-hero__media {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  line-height: 1;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn--primary {
  background: var(--primary);
  color: var(--bg-deep);
  box-shadow: 0 8px 24px rgba(0, 245, 160, 0.25);
}

.btn--primary:hover {
  background: var(--text-main);
  transform: translateY(-2px);
}

.btn--accent {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 8px 24px rgba(255, 122, 26, 0.25);
}

.btn--accent:hover {
  background: var(--text-main);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn--ghost:hover {
  background: rgba(0, 245, 160, 0.1);
}

.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 1rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--aux-blue);
  text-decoration: none;
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 1rem;
  color: var(--text-muted);
  opacity: 0.5;
}

.page-title {
  font-size: 3.5rem;
  line-height: 1.1;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.card,
.glass-panel {
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 1rem;
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.data-stat {
  font-family: var(--font-mono);
  color: var(--primary);
  font-weight: 700;
  font-size: 1.5em;
  line-height: 1;
}

.tag,
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: rgba(0, 245, 160, 0.12);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
}

.tag--accent,
.status-pill--accent {
  background: rgba(255, 122, 26, 0.12);
  color: var(--accent);
}

.status-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.divider {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.4;
  margin: 2rem 0;
}

.media-frame {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  background: var(--bg-raised);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 20%, rgba(0, 245, 160, 0.12), transparent 50%),
    linear-gradient(135deg, rgba(90, 130, 170, 0.08), transparent 60%);
}

.media-frame > * {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem;
}

@media (max-width: 900px) {
  :root {
    --rail-width: 44px;
  }

  .site-rail__meta {
    display: none;
  }

  .site-rail__init {
    font-size: 0.8rem;
  }

  .site-nav {
    top: 10px;
    right: 10px;
    left: calc(var(--rail-width) + 10px);
    max-width: none;
    border-radius: 22px;
    flex-wrap: wrap;
    gap: 4px;
  }

  .site-nav__toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav__list {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 2px;
    padding: 6px 4px 4px;
  }

  .site-nav[data-open="true"] .site-nav__list {
    display: flex;
  }

  .site-brand {
    flex: 1;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .split-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 3rem 0;
    gap: 2.5rem;
  }

  .split-hero__media {
    order: 2;
    aspect-ratio: 4 / 3;
  }
}

@media (max-width: 640px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: auto;
  }

  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .page-title {
    font-size: 2.5rem;
  }

  .content-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}