:root {
  --bg-base: #0B1026;
  --bg-elevated: #141A33;
  --accent-lime: #D4FF3F;
  --accent-orange: #FF5A1F;
  --text-silver: #C8D0E0;
  --text-white: #F5F7FA;
  --chart-blue: #00A3FF;
  --shadow-deep: rgba(0,0,0,0.6);
  --line: rgba(200,208,224,0.14);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --font-display: "Archivo Black", "Anton", "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  margin: 0;
  padding: 0;
  background: var(--bg-base);
  scroll-behavior: smooth;
  scrollbar-color: var(--accent-orange) var(--bg-elevated);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg-base);
  color: var(--text-silver);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60% 40% at 85% -5%, rgba(212,255,63,0.12), transparent 60%),
    radial-gradient(60% 40% at 0% 20%, rgba(0,163,255,0.12), transparent 60%),
    radial-gradient(80% 50% at 50% 110%, rgba(255,90,31,0.08), transparent 60%);
}

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

a {
  color: var(--accent-lime);
  text-decoration: none;
}

a:hover {
  color: var(--text-white);
}

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

li::marker {
  color: var(--accent-orange);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  color: var(--text-white);
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.15;
  text-wrap: balance;
}

p {
  margin: 0 0 1em;
}

button {
  font: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--accent-lime);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

#main-content {
  scroll-margin-top: 150px;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1rem;
  border-radius: 0 0 12px 12px;
  background: var(--accent-lime);
  color: var(--bg-base);
  font-weight: 700;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  color: var(--bg-base);
}

.shell {
  width: min(1180px, 100% - 2rem);
  margin-inline: auto;
}

.section {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.section--tight {
  padding-block: clamp(1.5rem, 3vw, 3rem);
}

.section--dim {
  padding-block: clamp(2rem, 5vw, 4.5rem);
  background: rgba(20,26,51,0.48);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--accent-lime);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-orange);
}

.display-2xl {
  font-size: clamp(3rem, 7vw, 4.5rem);
  letter-spacing: -0.02em;
}

.display-xl {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  letter-spacing: -0.01em;
}

.heading-lg {
  font-size: clamp(1.9rem, 3.5vw, 2.5rem);
}

.heading-md {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
}

.lead {
  font-size: clamp(1.125rem, 1.8vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-silver);
}

.caption {
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--text-silver);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 14px;
  color: var(--text-white);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn--solid {
  background: var(--accent-lime);
  color: var(--bg-base);
  box-shadow: 0 0 26px rgba(212,255,63,0.2);
}

.btn--solid:hover {
  background: var(--text-white);
  color: var(--bg-base);
  transform: translateY(-2px);
  box-shadow: 0 0 34px rgba(212,255,63,0.3);
}

.btn--ghost {
  border-color: rgba(212,255,63,0.5);
  background: rgba(212,255,63,0.05);
  color: var(--accent-lime);
}

.btn--ghost:hover {
  background: rgba(212,255,63,0.12);
  color: var(--accent-lime);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 1rem 1.75rem;
  border-radius: 16px;
  font-size: 1.125rem;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--accent-orange);
}

.breadcrumbs a {
  color: var(--text-silver);
}

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

.prose {
  max-width: 70ch;
}

.prose p {
  margin: 0 0 1.25em;
}

.prose h2,
.prose h3 {
  margin-top: 2rem;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 0.25em;
  text-decoration-color: rgba(212,255,63,0.5);
}

.prose a:hover {
  text-decoration-color: var(--accent-lime);
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 0.5rem 0 0.5rem 1.25rem;
  border-left: 4px solid var(--accent-orange);
  border-radius: 0 12px 12px 0;
  background: rgba(255,90,31,0.06);
  color: var(--text-white);
}

.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.5rem);
}

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

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

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

.grid--span-2 {
  grid-column: span 2;
}

.grid--span-3 {
  grid-column: span 3;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  border: 1px solid rgba(200,208,224,0.1);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  box-shadow: 0 18px 40px var(--shadow-deep);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.card::before {
  content: "";
  position: absolute;
  left: 18px;
  top: -1px;
  width: 56px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-lime), var(--accent-orange));
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(212,255,63,0.35);
}

.card--highlight {
  border-color: rgba(212,255,63,0.3);
  background:
    linear-gradient(135deg, rgba(212,255,63,0.08), rgba(255,90,31,0.06)),
    var(--bg-elevated);
}

.card__title {
  margin: 0.75rem 0 0.5rem;
  font-size: 1.35rem;
}

.card__meta {
  margin-bottom: 0.75rem;
  color: var(--text-silver);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card__text {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
}

.card__link {
  margin-top: auto;
  align-self: flex-start;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid rgba(212,255,63,0.35);
  border-radius: 999px;
  background: rgba(212,255,63,0.08);
  color: var(--accent-lime);
  font-size: 0.8125rem;
  font-weight: 600;
}

.tag--orange {
  border-color: rgba(255,90,31,0.4);
  background: rgba(255,90,31,0.1);
  color: var(--accent-orange);
}

.stat {
  padding: 1.25rem;
  border: 1px solid rgba(200,208,224,0.1);
  border-radius: 18px;
  background: rgba(20,26,51,0.7);
}

.stat__value {
  color: var(--accent-lime);
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
}

.stat__label {
  margin-top: 0.5rem;
  color: var(--text-silver);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
}

.link-line {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--accent-lime);
  font-weight: 700;
  text-decoration: none;
}

.link-line::after {
  content: "→";
  transition: transform 0.2s ease;
}

.link-line:hover::after {
  transform: translateX(3px);
}

.media-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid rgba(200,208,224,0.12);
  border-radius: 20px;
  background:
    radial-gradient(120% 80% at 80% 0%, rgba(212,255,63,0.14), transparent 50%),
    radial-gradient(100% 80% at 20% 100%, rgba(255,90,31,0.12), transparent 50%),
    var(--bg-elevated);
  color: var(--text-silver);
}

.media-frame::after {
  content: "";
  position: absolute;
  top: 12%;
  right: 8%;
  width: 36%;
  height: 1px;
  transform: rotate(-15deg);
  background: linear-gradient(90deg, transparent, var(--accent-orange));
  opacity: 0.6;
}

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

.media-frame--tall {
  aspect-ratio: 3 / 4;
}

.media-frame__label {
  position: relative;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: rgba(11,16,38,0.6);
  border: 1px solid rgba(212,255,63,0.25);
  color: var(--text-silver);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,16,38,0.97);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 12px 32px rgba(0,0,0,0.35);
}

.site-header__glow {
  position: absolute;
  left: 10%;
  right: 10%;
  top: -30px;
  height: 80px;
  pointer-events: none;
  border-radius: 50%;
  background: rgba(212,255,63,0.08);
  filter: blur(42px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1180px, 100% - 2rem);
  margin-inline: auto;
}

.site-header__top {
  border-bottom: 1px solid rgba(200,208,224,0.08);
}

.site-header__top .site-header__inner {
  min-height: 72px;
}

.site-header__bottom {
  background: rgba(20,26,51,0.78);
}

.site-header__bottom .site-header__inner {
  min-height: 56px;
}

.site-header__progress {
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 3px;
  z-index: 2;
  background: linear-gradient(90deg, var(--accent-lime), var(--chart-blue) 60%, var(--accent-orange));
  box-shadow: 0 0 12px var(--accent-lime);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-white);
  text-decoration: none;
}

.site-brand:hover {
  color: var(--text-white);
}

.site-brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-orange) 140%);
  box-shadow: 0 0 22px rgba(212,255,63,0.25);
  transform: skew(-10deg);
}

.site-brand__mark-core {
  display: block;
  color: var(--bg-base);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1;
  transform: skew(10deg);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-brand__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--text-white);
}

.site-brand__tagline {
  margin-top: 0.2rem;
  color: var(--text-silver);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
}

.site-header__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header__status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-silver);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-lime);
  box-shadow: 0 0 12px var(--accent-lime);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.82); }
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid rgba(212,255,63,0.3);
  border-radius: 12px;
  background: transparent;
  color: var(--text-white);
  font-weight: 600;
  line-height: 1;
}

.nav-toggle__label {
  font-size: 0.875rem;
}

.nav-toggle__box {
  position: relative;
  width: 22px;
  height: 16px;
}

.nav-toggle__box span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-lime);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle__box span:nth-child(1) { top: 0; }
.nav-toggle__box span:nth-child(2) { top: 7px; }
.nav-toggle__box span:nth-child(3) { top: 14px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  width: 100%;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: 0.5rem 0.25rem;
  color: var(--text-silver);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent-lime);
  transition: width 0.22s ease;
}

.site-nav__link:hover {
  color: var(--text-white);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after,
.site-nav__link[aria-current="true"]::after {
  width: 100%;
}

.site-nav__link[aria-current="page"],
.site-nav__link[aria-current="true"] {
  color: var(--text-white);
  text-shadow: 0 0 14px rgba(212,255,63,0.35);
}

.site-header__signal {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.signal-line {
  display: block;
  width: 2px;
  height: 16px;
  border-radius: 2px;
  background: linear-gradient(to top, transparent, var(--accent-lime));
  transform-origin: bottom;
  animation: signal 1.6s ease-in-out infinite;
}

.signal-line:nth-child(2) {
  height: 26px;
  background: linear-gradient(to top, transparent, var(--accent-orange));
  animation-delay: 0.2s;
}

.signal-line:nth-child(3) {
  height: 11px;
  animation-delay: 0.4s;
}

@keyframes signal {
  0%, 100% { transform: scaleY(0.8); opacity: 0.7; }
  50% { transform: scaleY(1.2); opacity: 1; }
}

.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(3rem, 8vw, 6rem);
  background:
    radial-gradient(60% 50% at 10% 0%, rgba(255,90,31,0.1), transparent 55%),
    radial-gradient(60% 50% at 90% 100%, rgba(212,255,63,0.07), transparent 55%),
    var(--bg-base);
  border-top: 1px solid rgba(255,90,31,0.25);
}

.site-footer__beam {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), var(--accent-lime), transparent);
}

.site-footer__inner {
  position: relative;
  z-index: 1;
  width: min(1180px, 100% - 2rem);
  margin-inline: auto;
  padding-block: clamp(2rem, 5vw, 4rem) 1.5rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.3fr);
  gap: clamp(1.5rem, 4vw, 3rem);
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.site-brand--footer .site-brand__mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
}

.site-footer__statement {
  max-width: 34ch;
  margin: 0;
  color: var(--text-silver);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
}

.site-footer__nav--legal {
  border-left: 1px solid rgba(212,255,63,0.12);
  padding-left: 1rem;
}

.site-footer__title {
  margin: 0 0 1rem;
  color: var(--text-white);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer__list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer__list a {
  display: inline-block;
  color: var(--text-silver);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.site-footer__list a:hover {
  padding-left: 0.25rem;
  color: var(--accent-lime);
}

.site-footer__contact-list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--text-silver);
  font-size: 0.9375rem;
}

.site-footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: 1.25rem;
  border-top: 1px solid rgba(200,208,224,0.12);
}

.site-footer__copyright,
.site-footer__icp {
  margin: 0;
  color: var(--text-silver);
  font-size: 0.8125rem;
}

.site-footer__icp {
  color: var(--accent-orange);
  font-weight: 600;
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: var(--reveal-delay, 0s);
}

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

@media (max-width: 900px) {
  .site-header__glow {
    opacity: 0.5;
  }

  .site-header__status {
    display: none;
  }

  .site-header__signal {
    display: none;
  }

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

  .site-header__top .site-header__inner {
    min-height: 64px;
  }

  .site-header__bottom {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
  }

  .site-header__bottom .site-header__inner {
    width: 100%;
    min-height: 0;
  }

  .site-nav {
    display: block;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    background: var(--bg-elevated);
    border-bottom: 1px solid rgba(200,208,224,0.12);
    box-shadow: 0 20px 40px var(--shadow-deep);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .site-nav[data-open] {
    visibility: visible;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1rem 0.75rem;
  }

  .site-nav__item {
    border-bottom: 1px solid rgba(200,208,224,0.08);
  }

  .site-nav__item:last-child {
    border-bottom: 0;
  }

  .site-nav__link {
    display: block;
    padding: 0.875rem 0.5rem;
  }

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

  .site-nav__link[aria-current="page"],
  .site-nav__link[aria-current="true"] {
    border-left: 3px solid var(--accent-lime);
    background: rgba(212,255,63,0.08);
    color: var(--accent-lime);
  }

  .grid--cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 720px) {
  .grid--cols-2,
  .grid--cols-3,
  .grid--cols-4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid--span-2,
  .grid--span-3 {
    grid-column: auto;
  }

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

  .site-footer__brand {
    grid-column: auto;
  }

  .site-footer__nav--legal {
    border-left: 0;
    padding-left: 0;
  }
}

@media (max-width: 480px) {
  .site-brand__tagline {
    display: none;
  }

  .site-header__meta .btn {
    display: none;
  }

  .site-header__top .site-header__inner {
    min-height: 60px;
  }

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

@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;
  }

  .status-dot,
  .signal-line {
    animation: none;
  }

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