:root {
  color-scheme: dark;
  --bg: #070b16;
  --bg-soft: #0c1324;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.1);
  --text: #f6f8ff;
  --muted: #aeb8cc;
  --soft: #d9e2ff;
  --line: rgba(255, 255, 255, 0.14);
  --blue: #4f8cff;
  --cyan: #54e3ff;
  --violet: #a77cff;
  --green: #44d7a8;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

html[data-i18n-pending] body {
  visibility: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
    radial-gradient(circle at 18% 16%, rgba(79, 140, 255, 0.18), transparent 34%),
    radial-gradient(circle at 82% 12%, rgba(167, 124, 255, 0.16), transparent 30%),
    linear-gradient(180deg, #070b16 0%, #0a1020 54%, #07101a 100%);
  background-size: 48px 48px, 48px 48px, auto, auto, auto;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.nav-toggle:focus-visible + .nav-toggle-label {
  outline: 3px solid rgba(84, 227, 255, 0.75);
  outline-offset: 3px;
}

a:active,
button:active {
  transform: translateY(1px);
}

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 11, 22, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.nav {
  max-width: var(--max);
  min-height: 72px;
  margin: 0 auto;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(84, 227, 255, 0.32);
  box-shadow: 0 0 0 4px rgba(79, 140, 255, 0.08);
}

.brand span {
  white-space: nowrap;
}

.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  content: "";
  position: relative;
}

.nav-toggle-label span::before {
  position: absolute;
  top: -6px;
}

.nav-toggle-label span::after {
  position: absolute;
  top: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--text);
  border-bottom-color: var(--cyan);
}

.nav-contact {
  padding: 0 14px;
  border: 1px solid rgba(84, 227, 255, 0.35);
  border-radius: var(--radius);
  color: var(--text) !important;
}

.hero {
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.72;
  background:
    linear-gradient(120deg, transparent 0 42%, rgba(84, 227, 255, 0.12) 42% 43%, transparent 43% 100%),
    linear-gradient(60deg, transparent 0 54%, rgba(167, 124, 255, 0.10) 54% 55%, transparent 55% 100%);
}

.hero-inner,
.section-inner {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
}

.hero-inner {
  min-height: calc(100vh - 72px);
  max-height: 880px;
  padding: 88px 0 64px;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  align-items: center;
  gap: 48px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid rgba(84, 227, 255, 0.24);
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(84, 227, 255, 0.08);
  font-size: 13px;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: 0;
}

h1 {
  margin-top: 18px;
  font-size: clamp(44px, 7vw, 86px);
  max-width: 780px;
}

h1 .line {
  display: block;
}

.gradient-text {
  background: linear-gradient(90deg, #fff 0%, #b9d7ff 42%, #bba6ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 22px 0 0;
  max-width: 720px;
  color: var(--soft);
  font-size: 19px;
}

.actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-weight: 800;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.button.primary {
  border-color: rgba(84, 227, 255, 0.5);
  background: linear-gradient(135deg, var(--blue), var(--violet));
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(84, 227, 255, 0.55);
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.045));
  box-shadow: var(--shadow);
  padding: 22px;
  overflow: hidden;
}

.network {
  position: relative;
  min-height: 420px;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    radial-gradient(circle at 20% 22%, rgba(84, 227, 255, 0.2), transparent 22%),
    radial-gradient(circle at 72% 66%, rgba(167, 124, 255, 0.22), transparent 26%),
    #081020;
  background-size: 34px 34px, 34px 34px, auto, auto, auto;
}

.node {
  position: absolute;
  width: 128px;
  min-height: 72px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius);
  background: rgba(8, 16, 32, 0.76);
  box-shadow: 0 18px 50px rgba(0,0,0,0.28);
}

.node strong {
  display: block;
  font-size: 14px;
}

.node span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.node.core {
  left: 50%;
  top: 45%;
  transform: translate(-50%, -50%);
  width: 158px;
  border-color: rgba(84, 227, 255, 0.45);
  background: rgba(24, 43, 82, 0.88);
}

.node.a { left: 8%; top: 10%; }
.node.b { right: 8%; top: 15%; }
.node.c { left: 11%; bottom: 12%; }
.node.d { right: 10%; bottom: 10%; }

.stream {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.stream::before,
.stream::after {
  content: "";
  position: absolute;
  height: 2px;
  width: 58%;
  left: 21%;
  top: 49%;
  background: linear-gradient(90deg, transparent, rgba(84,227,255,0.75), transparent);
  animation: pulse 3.4s ease-in-out infinite;
}

.stream::after {
  transform: rotate(58deg);
  transform-origin: center;
  animation-delay: .8s;
}

.section {
  padding: 92px 0;
}

.section.alt {
  background: rgba(255,255,255,0.035);
}

.section-head {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-kicker {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h2 {
  margin-top: 10px;
  font-size: clamp(30px, 4vw, 48px);
}

.section-head p,
.page-intro p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

.card,
.principle,
.status-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 24px;
}

.card {
  min-height: 210px;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(84, 227, 255, 0.42);
  background: var(--panel-strong);
}

.icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(79,140,255,0.32), rgba(84,227,255,0.14));
  color: #dff8ff;
  font-weight: 900;
}

.card h3,
.principle h3,
.status-card h3 {
  font-size: 20px;
}

.card p,
.principle p,
.status-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.learn {
  display: inline-flex;
  margin-top: 18px;
  color: var(--cyan);
  font-weight: 800;
}

.stages {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.stage {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: rgba(255,255,255,0.055);
}

.stage .num {
  color: var(--cyan);
  font-weight: 900;
}

.architecture {
  display: grid;
  grid-template-columns: minmax(280px, 0.92fr) minmax(0, 1.08fr);
  gap: 28px;
  align-items: stretch;
}

.stack {
  display: grid;
  gap: 12px;
}

.stack-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(255,255,255,0.06);
}

.stack-item strong {
  display: block;
}

.stack-item span {
  color: var(--muted);
}

.module-map {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.module-map div {
  min-height: 82px;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(84,227,255,0.055);
  color: var(--soft);
  font-weight: 800;
}

.flow {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.flow-step {
  min-height: 118px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.055);
}

.flow-step span {
  color: var(--cyan);
  font-weight: 900;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  margin-bottom: 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  background: rgba(84,227,255,0.12);
  color: var(--cyan);
}

.status.building { color: #b8a7ff; background: rgba(167,124,255,0.13); }
.status.research { color: #9be7c9; background: rgba(68,215,168,0.12); }
.status.future { color: #d3d9e8; background: rgba(255,255,255,0.08); }

.cta {
  padding: 58px;
  border: 1px solid rgba(84,227,255,0.24);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(79,140,255,0.2), rgba(167,124,255,0.14));
}

.page-hero {
  padding: 88px 0 54px;
  border-bottom: 1px solid var(--line);
}

.page-intro {
  max-width: 820px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb a {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  color: var(--cyan);
  font-weight: 800;
}

.crumb-sep {
  color: rgba(255,255,255,0.36);
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  align-items: start;
}

.detail-main {
  min-width: 0;
}

.detail-main h2,
.detail-side h2 {
  margin-top: 30px;
  font-size: 26px;
}

.detail-main h2:first-child,
.detail-side h2:first-child {
  margin-top: 0;
}

.detail-main p {
  color: var(--soft);
}

.process-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 24px;
  color: var(--soft);
}

.process-list li {
  padding-left: 4px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.pill-list span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid rgba(84, 227, 255, 0.28);
  border-radius: 999px;
  background: rgba(84, 227, 255, 0.075);
  color: var(--soft);
  font-weight: 800;
}

.flow.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.detail-side {
  position: sticky;
  top: 96px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 18px;
}

.side-link {
  min-height: 46px;
  display: flex;
  align-items: center;
  margin-top: 10px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--soft);
  background: rgba(255,255,255,0.045);
  font-weight: 800;
}

.side-link:hover {
  border-color: rgba(84, 227, 255, 0.45);
  color: var(--text);
}

.prev-next {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.prev-next a {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border-radius: var(--radius);
  background: rgba(84, 227, 255, 0.08);
  color: var(--cyan);
  font-weight: 900;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: 22px;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  color: var(--soft);
  font-weight: 800;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font: inherit;
}

.field textarea {
  min-height: 132px;
  resize: vertical;
}

.note {
  color: var(--muted);
  font-size: 14px;
}

.footer {
  border-top: 1px solid var(--line);
  background: rgba(0,0,0,0.24);
}

.footer-inner {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
  padding: 34px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.footer p {
  margin: 8px 0 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--muted);
}

.contact-launcher {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
}

.contact-open,
.contact-close {
  border: 0;
  cursor: pointer;
  font: inherit;
}

.contact-open {
  min-height: 52px;
  padding: 0 18px;
  border-radius: 999px;
  color: var(--text);
  background: linear-gradient(135deg, var(--blue), var(--violet));
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.38);
  font-weight: 900;
}

.contact-open:hover,
.contact-open:focus-visible {
  box-shadow: 0 20px 54px rgba(79, 140, 255, 0.35);
}

.contact-panel {
  position: absolute;
  right: 0;
  bottom: 66px;
  width: min(360px, calc(100vw - 44px));
  display: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(8, 13, 28, 0.96);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.contact-panel[data-open="true"] {
  display: block;
}

.contact-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.contact-panel-head h3 {
  font-size: 18px;
}

.contact-panel-head p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.contact-close {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.07);
  color: var(--text);
  font-size: 22px;
}

.contact-options {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.contact-option {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.055);
}

.contact-option strong {
  display: block;
}

.contact-option span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.contact-option.disabled {
  opacity: .72;
  cursor: not-allowed;
}

.button[aria-disabled="true"],
.contact-option[aria-disabled="true"] {
  pointer-events: none;
}

.contact-panel-foot {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 13px;
}

@keyframes pulse {
  0%, 100% { opacity: .2; }
  50% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}

@media (max-width: 1024px) {
  .hero-inner,
  .architecture,
  .contact-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-side {
    position: static;
  }

  .hero-inner {
    max-height: none;
    padding-top: 70px;
  }

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

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

@media (max-width: 768px) {
  .nav {
    min-height: 64px;
  }

  .brand span {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

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

  .nav-links {
    position: absolute;
    left: 0;
    right: 0;
    top: 64px;
    display: none;
    padding: 12px 22px 18px;
    background: rgba(7, 11, 22, 0.96);
    border-bottom: 1px solid var(--line);
  }

  .nav-toggle:checked ~ .nav-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .nav-links a {
    width: 100%;
  }

  .hero-inner,
  .section-inner,
  .footer-inner {
    width: min(100% - 32px, var(--max));
  }

  .hero-inner {
    min-height: auto;
    padding: 58px 0 42px;
  }

  .network {
    min-height: 330px;
  }

  .node {
    width: 112px;
  }

  .node.core {
    width: 136px;
  }

  .grid.three,
  .grid.two,
  .stages,
  .flow,
  .flow.compact,
  .module-map {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 68px 0;
  }

  .cta {
    padding: 28px;
  }

  .footer-inner {
    display: grid;
  }

  .contact-launcher {
    left: 16px;
    right: 16px;
    bottom: max(16px, env(safe-area-inset-bottom));
  }

  .contact-open {
    width: 100%;
    border-radius: var(--radius);
  }

  .contact-panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    border-radius: 16px 16px 0 0;
    padding-bottom: env(safe-area-inset-bottom);
  }
}

@media (max-width: 430px) {
  .brand span {
    max-width: 150px;
  }

  .actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero-panel {
    padding: 14px;
  }

  .network {
    min-height: 300px;
  }

  .node {
    width: 102px;
    min-height: 64px;
    padding: 10px;
  }

  .node strong {
    font-size: 13px;
  }

  .node span {
    font-size: 11px;
  }
}
.language-switcher { display: inline-flex; align-items: center; min-width: 132px; max-width: 168px; }
.language-select-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.language-select {
  width: 100%;
  min-height: 36px;
  padding: 0 32px 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.07);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  font-weight: 800;
}
.language-select option { color: #111827; background: #fff; }
a.status-card { color: inherit; }
a.status-card:hover { border-color: rgba(84,227,255,0.45); transform: translateY(-2px); }
@media (max-width: 768px) { .language-switcher { width: min(100%, 180px); max-width: 180px; } .language-select { min-height: 40px; font-size: 14px; } }


.icp-record {
  width: min(var(--max), calc(100% - 44px));
  margin: -14px auto 0;
  padding: 0 0 28px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.icp-record a:hover,
.icp-record a:focus-visible {
  color: var(--text);
}