:root {
  --color-deepblue: #0B1E3B;
  --color-deepblue-2: #183059;
  --color-paper: #F5F0E8;
  --color-ink: #1F2937;
  --color-muted: #6B7280;
  --color-neon: #39FF14;
  --color-orange: #FF6B35;
  --color-border: #D1D5DB;
  --color-card: #FFFFFF;
  --color-overlay: rgba(11, 30, 59, 0.85);
  --header-w: 72px;
  --header-h: 64px;
  --content-max: 1280px;
  --gutter: clamp(1rem, 3vw, 2.5rem);
  --font-display: "Archivo Black", "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  padding-left: var(--header-w);
  background-color: var(--color-paper);
  background-image: linear-gradient(rgba(11, 30, 59, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(11, 30, 59, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#main-content {
  display: block;
  min-height: 70vh;
  outline: none;
}

a {
  color: var(--color-deepblue);
  text-underline-offset: 0.15em;
}

h1, h2, h3, p, ul, ol {
  margin: 0 0 0.75em;
}

h1,
h2,
h3 {
  line-height: 1.25;
  color: var(--color-deepblue);
  font-family: var(--font-display);
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1.25;
}

h3 {
  font-size: 1.25rem;
  font-family: var(--font-body);
  font-weight: 700;
}

ul,
ol {
  padding-left: 1.25rem;
}

button {
  font-family: inherit;
}

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

::selection {
  background: var(--color-neon);
  color: var(--color-deepblue);
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: calc(var(--header-w) + 1rem);
  z-index: 200;
  padding: 0.6rem 1rem;
  transform: translateY(-200%);
  background: var(--color-neon);
  border-radius: 999px;
  color: var(--color-deepblue);
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}

.skip-link:focus {
  transform: translateY(0);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.25);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: var(--header-w);
  height: 100vh;
  background: var(--color-deepblue);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  color: #EDF2F7;
}

.site-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 0.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.site-brand__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: #FFFFFF;
  text-decoration: none;
}

.site-brand__mark {
  position: relative;
  display: block;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  transform: rotate(45deg);
}

.site-brand__dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--color-neon);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.55);
  transform: translate(-50%, -50%);
}

.site-brand__name {
  writing-mode: vertical-rl;
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  line-height: 1.4;
}

.site-brand__tag {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.12em;
  color: var(--color-neon);
  text-transform: uppercase;
  text-align: center;
  line-height: 1.4;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 3.4rem;
  padding: 0.5rem 0.75rem;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.8rem;
  line-height: 1.4;
  letter-spacing: 0.08em;
  text-decoration: none;
  writing-mode: vertical-rl;
  text-align: center;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.site-nav__link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #FFFFFF;
}

.site-nav__link[aria-current="page"] {
  color: var(--color-neon);
}

.site-nav__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 28px;
  background: var(--color-neon);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.5);
  transform: translateY(-50%);
}

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-neon);
  transform: translateY(-50%);
}

.site-header__meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
  padding: 1rem 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-header__signal {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-neon);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.6);
  animation: signalPulse 2.4s ease-in-out infinite;
}

@keyframes signalPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.site-header__status {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  text-align: center;
  line-height: 1.4;
}

.site-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  width: 64px;
  height: 64px;
  border: 0;
  background: transparent;
  color: #FFFFFF;
  cursor: pointer;
}

.site-nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.site-nav-toggle__label {
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
}

.site-footer {
  margin-top: 4rem;
  background: var(--color-paper);
  border-top: 1px solid var(--color-border);
  color: var(--color-ink);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 0.9fr 1.2fr;
  gap: 2rem;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 2.5rem var(--gutter) 0;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.site-footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--color-deepblue);
  text-decoration: none;
}

.site-footer__desc {
  max-width: 22em;
  margin: 0;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.site-footer__note {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.75rem;
  line-height: 1.6;
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-footer__heading {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--color-deepblue);
  text-transform: uppercase;
}

.site-footer__col p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.site-footer__link {
  display: inline-block;
  width: fit-content;
  color: var(--color-deepblue);
  font-size: 0.875rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, color 0.3s ease;
}

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

.site-footer__bottom {
  margin-top: 2.5rem;
  background: var(--color-deepblue);
  color: #E5EAF2;
}

.site-footer__bottom-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr auto;
  align-items: center;
  gap: 1rem;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 1.25rem var(--gutter);
}

.site-footer__statement {
  max-width: 48em;
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.75rem;
  line-height: 1.7;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.site-footer__legal a {
  color: #E5EAF2;
  font-size: 0.8rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 20, 0.4);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.site-footer__legal a:hover {
  color: var(--color-neon);
  border-color: var(--color-neon);
}

.site-footer__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
  text-align: right;
  white-space: nowrap;
}

.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.section--wide {
  max-width: var(--content-max);
  margin-right: auto;
  margin-left: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section--narrow {
  max-width: 760px;
  margin-right: auto;
  margin-left: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section__title {
  margin-top: 0;
  margin-bottom: 1rem;
}

.section__lead {
  max-width: 60ch;
  margin: 0 0 2rem;
  color: var(--color-muted);
  font-size: 1.125rem;
  line-height: 1.8;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--color-orange);
  text-transform: uppercase;
}

.section-kicker::before {
  content: "";
  width: 2.5rem;
  height: 1px;
  background: currentColor;
}

.grid--split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
}

.grid--cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(16rem, 100%), 1fr));
  gap: 1.25rem;
}

.card {
  position: relative;
  padding: 1.25rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px rgba(11, 30, 59, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.card:hover {
  border-color: rgba(57, 255, 20, 0.6);
  box-shadow: 0 10px 24px rgba(11, 30, 59, 0.08);
  transform: translateY(-2px);
}

.card--highlight {
  border-left: 4px solid var(--color-neon);
}

.card--data {
  border-top: 3px solid var(--color-orange);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.btn--primary {
  background: var(--color-neon);
  color: var(--color-deepblue);
}

.btn--primary:hover {
  background: #2ade0f;
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.18);
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-deepblue);
  color: var(--color-deepblue);
}

.btn--ghost:hover {
  background: var(--color-deepblue);
  color: #FFFFFF;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 1.5rem 0 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
}

.breadcrumb li {
  display: flex;
  gap: 0.5rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-border);
}

.breadcrumb a {
  color: var(--color-deepblue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

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

.table-wrap {
  overflow-x: auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
}

.data-sheet {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-card);
}

.data-sheet th,
.data-sheet td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.data-sheet th {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.data-sheet td {
  color: var(--color-ink);
}

.data-sheet .data-sheet__highlight {
  color: var(--color-orange);
  font-weight: 600;
}

.media-frame {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 14rem;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(11, 30, 59, 0.96), rgba(11, 30, 59, 0.78) 60%, rgba(57, 255, 20, 0.14));
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1rem;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(120deg, transparent 0%, transparent 45%, rgba(57, 255, 20, 0.22) 45%, rgba(57, 255, 20, 0.22) 47%, transparent 47%),
    linear-gradient(60deg, transparent 25%, rgba(255, 255, 255, 0.07) 25%, rgba(255, 255, 255, 0.07) 25.5%, transparent 25.5%),
    linear-gradient(120deg, transparent 60%, rgba(255, 255, 255, 0.05) 60%, rgba(255, 255, 255, 0.05) 60.5%, transparent 60.5%);
  background-size: 80px 80px;
  opacity: 0.6;
}

.media-frame::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 55%;
  height: 55%;
  border: 1px solid rgba(255, 107, 53, 0.45);
  transform: rotate(28deg);
}

.media-frame__label {
  position: relative;
  z-index: 1;
  padding: 0.4rem 0.7rem;
  background: rgba(11, 30, 59, 0.78);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: #FFFFFF;
}

.media-frame--hero {
  min-height: calc(100vh - 12rem);
}

.media-frame--tall {
  min-height: 26rem;
}

.media-frame--wide {
  min-height: 18rem;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease-out, transform 0.45s ease-out;
}

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

@media (max-width: 820px) {
  body {
    padding-left: 0;
    padding-top: var(--header-h);
  }

  .skip-link {
    left: 1rem;
  }

  .site-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: var(--header-h);
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .site-brand {
    padding: 0.25rem 0 0.25rem 1rem;
    border-bottom: none;
  }

  .site-brand__link {
    flex-direction: row;
    gap: 0.5rem;
  }

  .site-brand__mark {
    width: 24px;
    height: 24px;
  }

  .site-brand__name {
    writing-mode: horizontal-tb;
    font-size: 1rem;
    letter-spacing: 0.12em;
  }

  .site-brand__tag {
    display: none;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    display: block;
    width: min(80vw, 18rem);
    height: calc(100vh - var(--header-h));
    overflow-y: auto;
    background: var(--color-deepblue);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    transform: translateX(-100%);
    transition: transform 0.3s ease-out;
  }

  .site-nav[data-open] {
    transform: translateX(0);
  }

  .site-nav__list {
    gap: 0;
    padding: 1rem 0;
  }

  .site-nav__link {
    min-height: 3rem;
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    writing-mode: horizontal-tb;
    text-align: left;
  }

  .site-nav__link[aria-current="page"]::before {
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    transform: none;
  }

  .site-nav__link[aria-current="page"]::after {
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
  }

  .site-header__meta {
    display: none;
  }

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

  .site-header[data-open] .site-nav-toggle__bar:first-child {
    transform: translateY(6px) rotate(45deg);
  }

  .site-header[data-open] .site-nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  .site-header[data-open] .site-nav-toggle__bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__bottom-inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }

  .site-footer__icp {
    text-align: center;
  }

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

  .media-frame--hero {
    min-height: 60vh;
  }
}

@media (max-width: 520px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .site-footer__bottom-inner {
    gap: 0.75rem;
  }

  .site-footer__legal {
    flex-direction: column;
    gap: 0.5rem;
  }

  .section__title {
    font-size: 1.5rem;
  }
}

@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;
  }

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