:root {
  --color-bg: #0B1F3A;
  --color-bg-2: #1C3556;
  --color-bg-3: #081729;
  --color-accent: #39FF14;
  --color-accent-2: #FF6B00;
  --color-line: #4A90D9;
  --color-text: #FFFFFF;
  --color-muted: #C9D1D9;
  --color-glass: rgba(255, 255, 255, 0.12);
  --font-head: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --rail-width: 280px;
  --radius: 12px;
  --shadow-card: 0 20px 40px rgba(2, 8, 18, 0.28);
  --ease-out: cubic-bezier(0.2, 0.7, 0.3, 1);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(74, 144, 217, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 144, 217, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.7;
}

body.nav-lock {
  overflow: hidden;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.1;
}

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

#main-content {
  outline: none;
}

#main-content:focus-visible {
  box-shadow: inset 0 0 0 2px var(--color-accent);
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1100;
  display: inline-flex;
  align-items: center;
  padding: 12px 20px;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 900;
  display: flex;
  flex-direction: column;
  width: var(--rail-width);
  height: 100vh;
  background:
    radial-gradient(circle at 30% 0%, rgba(57, 255, 20, 0.1), transparent 40%),
    linear-gradient(180deg, #0B1F3A 0%, #0F2A4A 100%);
  border-right: 1px solid rgba(74, 144, 217, 0.25);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(74, 144, 217, 0.08), transparent 60%);
  pointer-events: none;
}

.site-header::after {
  display: none;
}

.site-header__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  padding: 28px 20px 0;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-data);
  font-size: 16px;
  font-weight: 800;
  clip-path: polygon(0 0, 100% 0, 100% 75%, 75% 100%, 0 100%);
  box-shadow: 0 0 24px rgba(57, 255, 20, 0.16);
}

.site-brand__text {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.site-brand__tagline {
  display: block;
  margin-top: 2px;
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(74, 144, 217, 0.35);
  border-radius: 4px;
  color: var(--color-text);
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: var(--color-accent);
}

.nav-toggle__box {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease;
}

.site-header[data-open] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

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

.nav-toggle__label {
  letter-spacing: 0.08em;
}

.site-nav {
  position: static;
  display: flex;
  flex-direction: column;
  flex: 1;
  visibility: visible;
  width: auto;
  height: auto;
  background: transparent;
  border-right: 0;
  padding: 0;
  overflow: visible;
  transform: none;
}

.site-nav__list {
  position: relative;
  flex: 1;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.site-nav__list::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 40px;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.14), transparent);
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  align-items: center;
  min-height: 54px;
  padding: 14px 16px 14px 20px;
  border-left: 2px solid transparent;
  color: var(--color-muted);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 6px;
  height: 6px;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-50%);
  transition: background 0.2s, box-shadow 0.2s;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
  border-left-color: var(--color-accent);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-text);
  background: linear-gradient(90deg, rgba(57, 255, 20, 0.14), rgba(57, 255, 20, 0.02));
  border-left-color: var(--color-accent);
}

.site-nav__link[aria-current="page"]::after {
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent);
}

.site-nav__index {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--color-line);
  letter-spacing: 0.04em;
}

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

.site-nav__text {
  white-space: nowrap;
}

.site-nav__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding: 20px 16px;
  border-top: 1px solid rgba(74, 144, 217, 0.15);
}

.site-nav__live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.site-nav__ver {
  font-family: var(--font-data);
  font-size: 10px;
  color: var(--color-muted);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
  animation: live-pulse 2s ease-in-out infinite;
}

@keyframes live-pulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 12px rgba(57, 255, 20, 0.6);
  }
  50% {
    opacity: 0.4;
    box-shadow: 0 0 2px rgba(57, 255, 20, 0.2);
  }
}

.scroll-progress {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 3;
  width: 3px;
  height: 100%;
  background: rgba(255, 255, 255, 0.06);
}

.scroll-progress::before {
  content: "";
  display: block;
  width: 100%;
  height: var(--progress, 0%);
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-2));
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.4);
}

.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 48px);
}

.section {
  padding-block: clamp(48px, 9vw, 104px);
}

.section--tight {
  padding-block: clamp(24px, 4vw, 48px);
}

.grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

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

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

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

.card {
  position: relative;
  display: block;
  padding: clamp(18px, 3vw, 32px);
  background: var(--color-bg-2);
  border: 1px solid rgba(74, 144, 217, 0.18);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  transition: transform 0.3s var(--ease-out), border-color 0.3s, background 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(57, 255, 20, 0.35);
}

.card--glass {
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.card__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.4vw, 26px);
}

.card__text {
  margin: 0;
  color: var(--color-muted);
}

.card__link {
  display: inline-block;
  margin-top: 16px;
  color: var(--color-accent);
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-2);
  border: 1px solid rgba(74, 144, 217, 0.25);
  border-radius: 8px;
  aspect-ratio: 16 / 9;
}

.media-frame--square {
  aspect-ratio: 1 / 1;
}

.media-frame--tall {
  aspect-ratio: 4 / 5;
}

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

.media-frame--auto {
  aspect-ratio: auto;
  min-height: 220px;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.media-frame:hover img {
  transform: scale(1.02);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 31, 58, 0.1), rgba(11, 31, 58, 0.55));
  pointer-events: none;
}

.media-frame__badge {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 1;
  padding: 4px 10px;
  background: rgba(11, 31, 58, 0.85);
  border: 1px solid rgba(57, 255, 20, 0.4);
  border-radius: 999px;
  color: var(--color-accent);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 12px 22px;
  border: 2px solid transparent;
  border-radius: 4px;
  background: var(--color-accent-2);
  color: var(--color-bg);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(255, 107, 0, 0.25);
}

.button--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-line);
}

.button--ghost:hover {
  border-color: var(--color-accent);
  box-shadow: none;
}

.button--green {
  background: var(--color-accent);
  box-shadow: 0 0 24px rgba(57, 255, 20, 0.18);
}

.button--small {
  min-height: 36px;
  padding: 8px 16px;
  font-size: 14px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--color-accent);
}

.section-head {
  max-width: 720px;
  margin: 0 0 32px;
}

.section-head__title {
  margin: 0;
  font-size: clamp(30px, 5vw, 52px);
  letter-spacing: -0.02em;
}

.section-head__lead {
  margin-top: 12px;
  color: var(--color-muted);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 18px 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--color-muted);
}

.breadcrumbs a {
  color: var(--color-line);
  text-decoration: none;
}

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

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(74, 144, 217, 0.55);
}

.breadcrumbs [aria-current="page"] {
  color: var(--color-accent);
}

.data-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 1px solid rgba(74, 144, 217, 0.35);
  border-radius: 999px;
  background: rgba(11, 31, 58, 0.55);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-line);
}

.data-chip--accent {
  border-color: rgba(57, 255, 20, 0.45);
  color: var(--color-accent);
}

.data-chip--alert {
  border-color: rgba(255, 107, 0, 0.55);
  color: var(--color-accent-2);
}

.description-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 24px;
  margin: 0;
  padding: 0;
}

.description-list dt {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.description-list dd {
  margin: 2px 0 0;
  font-family: var(--font-data);
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 700;
  color: var(--color-text);
}

.timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 1px;
  background: linear-gradient(180deg, var(--color-accent), rgba(74, 144, 217, 0.2), transparent);
}

.timeline__item {
  position: relative;
  padding: 0 0 28px 28px;
}

.timeline__item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 15px;
  height: 15px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  background: var(--color-bg);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.3);
}

.timeline__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
}

.timeline__text {
  margin: 4px 0 0;
  color: var(--color-muted);
}

.divider {
  border: 0;
  height: 1px;
  margin: 40px 0;
  background: linear-gradient(90deg, rgba(74, 144, 217, 0.4), transparent);
}

.site-footer {
  position: relative;
  padding: clamp(40px, 6vw, 72px) clamp(20px, 5vw, 64px) 24px;
  background: linear-gradient(180deg, #081729 0%, #050E1D 100%);
  border-top: 1px solid rgba(74, 144, 217, 0.25);
}

.site-footer__backdrop {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  overflow: hidden;
  font-family: var(--font-head);
  font-size: clamp(80px, 18vw, 220px);
  font-weight: 900;
  line-height: 0.75;
  color: rgba(255, 255, 255, 0.025);
  pointer-events: none;
  user-select: none;
}

.site-footer__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: clamp(24px, 5vw, 64px);
  max-width: 1200px;
  margin-inline: auto;
}

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

.site-brand--footer .site-brand__mark {
  width: 48px;
  height: 48px;
  font-size: 18px;
}

.site-brand--footer .site-brand__tagline {
  margin-top: 3px;
}

.site-footer__slogan {
  margin: 20px 0 12px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-footer__trust {
  max-width: 440px;
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.site-footer__col {
  min-width: 0;
}

.site-footer__heading {
  margin: 0 0 18px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.site-footer__links {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer__links a {
  color: var(--color-muted);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s, padding-left 0.2s;
}

.site-footer__links a:hover {
  color: var(--color-text);
  padding-left: 4px;
}

.site-footer__contact {
  min-width: 0;
  font-size: 14px;
  color: var(--color-muted);
}

.site-footer__contact-row {
  margin: 0 0 8px;
}

.site-footer__note {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(74, 144, 217, 0.2);
  font-size: 13px;
}

.site-footer__bottom {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 1200px;
  margin: 48px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(74, 144, 217, 0.16);
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--color-muted);
}

.site-footer__copyright {
  margin: 0;
}

.site-footer__icp {
  margin: 0;
  color: var(--color-line);
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 950;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(57, 255, 20, 0.35);
  border-radius: 8px;
  background: rgba(11, 31, 58, 0.7);
  color: var(--color-accent);
  font-size: 22px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s, transform 0.25s, visibility 0.25s, background 0.25s;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.back-to-top__icon {
  line-height: 1;
}

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

[data-reveal].has-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s var(--ease-out);
}

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

@media (min-width: 1024px) {
  body {
    padding-left: var(--rail-width);
  }
}

@media (max-width: 1023.98px) {
  body.nav-lock {
    overflow: hidden;
  }

  .site-header {
    flex-direction: row;
    align-items: center;
    width: 100%;
    height: 64px;
    background: rgba(11, 31, 58, 0.96);
    border-right: 0;
    border-bottom: 1px solid rgba(74, 144, 217, 0.2);
  }

  .site-header__inner {
    flex: 1;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    height: 64px;
    padding: 0 16px;
  }

  .site-brand__tagline {
    display: none;
  }

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

  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    bottom: 0;
    z-index: 820;
    width: min(320px, 85vw);
    height: auto;
    padding: 24px 0 0;
    background: rgba(11, 31, 58, 0.96);
    border-right: 1px solid rgba(74, 144, 217, 0.25);
    overflow-y: auto;
    visibility: hidden;
    transform: translateX(-105%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.35s;
  }

  @supports ((backdrop-filter: blur(16px)) or (-webkit-backdrop-filter: blur(16px))) {
    .site-nav {
      background: rgba(11, 31, 58, 0.86);
      -webkit-backdrop-filter: blur(16px);
      backdrop-filter: blur(16px);
    }
  }

  .site-nav__list {
    margin-top: 8px;
  }

  .site-header[data-open] .site-nav {
    visibility: visible;
    transform: translateX(0);
    box-shadow: 16px 0 48px rgba(3, 8, 16, 0.5);
  }

  .site-header[data-open]::after {
    display: block;
    content: "";
    position: fixed;
    top: 64px;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 810;
    background: rgba(4, 11, 22, 0.7);
  }

  .scroll-progress {
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
  }

  .scroll-progress::before {
    width: var(--progress, 0%);
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  }
}

@media (max-width: 1180px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
    max-width: none;
  }

  .site-footer__contact {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  .site-footer__brand,
  .site-footer__contact {
    grid-column: 1;
  }

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

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .description-list {
    grid-template-columns: 1fr;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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