:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-2: #0b1728;
  --panel: rgba(13, 28, 48, 0.82);
  --panel-strong: #101f33;
  --ink: #f7fbff;
  --muted: #a7b5c8;
  --subtle: #73839a;
  --line: rgba(139, 173, 216, 0.22);
  --cyan: #32d6ff;
  --blue: #3f6dff;
  --green: #19e5a1;
  --orange: #ffb84c;
  --red: #ff5f6d;
  --shadow: 0 28px 72px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    linear-gradient(180deg, rgba(7, 17, 31, 0.88), rgba(7, 17, 31, 0.98)),
    repeating-linear-gradient(90deg, rgba(50, 214, 255, 0.06) 0 1px, transparent 1px 80px),
    repeating-linear-gradient(0deg, rgba(63, 109, 255, 0.04) 0 1px, transparent 1px 80px),
    var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 30%, rgba(50, 214, 255, 0.08) 30% 31%, transparent 31% 100%),
    linear-gradient(240deg, transparent 0 54%, rgba(25, 229, 161, 0.06) 54% 55%, transparent 55% 100%);
  opacity: 0.8;
}

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

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 99;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: #07111f;
  background: var(--green);
  transform: translateY(-140%);
}

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

.site-nav {
  position: fixed;
  z-index: 30;
  top: 16px;
  left: 50%;
  width: min(1180px, calc(100% - 28px));
  min-height: 66px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(7, 17, 31, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 172px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(50, 214, 255, 0.5);
  border-radius: 8px;
  color: var(--ink);
  background: linear-gradient(135deg, var(--blue), #15b9ff);
  font-weight: 900;
  box-shadow: 0 0 28px rgba(50, 214, 255, 0.35);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
}

.nav-links a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
}

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

.nav-cta,
.primary-action,
.secondary-action,
.inline-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 800;
}

.nav-cta,
.primary-action,
.inline-action {
  color: #06101d;
  border: 1px solid rgba(50, 214, 255, 0.8);
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 16px 34px rgba(50, 214, 255, 0.24);
}

.secondary-action {
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  min-height: 94svh;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(420px, 0.82fr);
  align-items: center;
  gap: 46px;
  padding: 132px max(24px, calc((100vw - 1180px) / 2)) 92px;
}

.circuit-field {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7, 17, 31, 0.72), rgba(7, 17, 31, 0.18)),
    radial-gradient(circle at 70% 30%, rgba(50, 214, 255, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(7, 17, 31, 0.2), var(--bg));
}

.hero-content {
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(56px, 8vw, 112px);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-slogan {
  margin: 18px 0 0;
  font-size: clamp(25px, 3vw, 42px);
  line-height: 1.18;
  font-weight: 900;
}

.hero-copy,
.section-heading p,
.about-grid p,
.contact-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.hero-copy {
  width: min(700px, 100%);
  margin: 18px 0 0;
}

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

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.signal-strip span {
  min-height: 78px;
  display: grid;
  align-content: center;
  padding: 16px;
  color: var(--muted);
  background: rgba(13, 28, 48, 0.82);
  font-size: 13px;
}

.signal-strip strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 28px;
}

.hero-console {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.console-top,
.console-metrics {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  color: var(--muted);
  font-size: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.console-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--red);
}

.console-top span:nth-child(2) {
  background: var(--orange);
}

.console-top span:nth-child(3) {
  background: var(--green);
}

.console-top strong {
  margin-left: auto;
  letter-spacing: 0.08em;
}

.hero-console img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.9;
}

.console-metrics {
  justify-content: space-between;
}

.section {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 92px 0 0;
}

.section-heading {
  width: min(820px, 100%);
}

.section-heading.compact {
  width: min(940px, 100%);
}

.section h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.18;
  letter-spacing: 0;
}

.section-heading p {
  margin: 18px 0 0;
}

.feature-grid,
.download-grid,
.news-grid,
.career-grid,
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.feature-grid article,
.download-grid article,
.news-card,
.doc-card,
.career-card,
.roadmap-card,
.timeline-card,
.about-grid article,
.qr-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
}

.feature-grid article,
.download-grid article,
.news-card,
.career-card,
.about-grid article,
.qr-card {
  padding: 24px;
}

.module-code,
.download-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(50, 214, 255, 0.45);
  border-radius: 8px;
  color: var(--cyan);
  background: rgba(50, 214, 255, 0.1);
  font-weight: 900;
}

.feature-grid h3,
.download-grid h3,
.news-card h3,
.docs-layout h3,
.career-card h3,
.roadmap-card h3,
.timeline-card h3,
.about-grid h3 {
  margin: 18px 0 0;
  font-size: 22px;
}

.feature-grid p,
.download-grid p,
.news-card p,
.career-card p,
.roadmap-items,
.timeline-card p,
.timeline-next,
.about-grid p {
  color: var(--muted);
  line-height: 1.75;
}

.download-grid button {
  width: 100%;
  min-height: 44px;
  margin-top: 18px;
  color: var(--subtle);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.inline-action {
  width: 100%;
  margin-top: 18px;
}

.news-card time,
.career-card span,
.roadmap-number,
.timeline-date,
.timeline-stage {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 850;
}

.docs-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
  margin-top: 32px;
}

.tech-list,
.api-list {
  display: grid;
  gap: 12px;
}

.doc-card {
  padding: 18px;
}

.doc-card h4 {
  margin: 0;
  font-size: 18px;
}

.doc-card p,
.doc-card code {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.65;
}

.doc-card code {
  color: var(--green);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.timeline-list {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.timeline-card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  padding: 22px;
}

.timeline-card h3 {
  margin-top: 0;
}

.timeline-type,
.verified-list span,
.roadmap-status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(50, 214, 255, 0.42);
  border-radius: 8px;
  color: var(--cyan);
  background: rgba(50, 214, 255, 0.1);
  font-size: 13px;
  font-weight: 800;
}

.verified-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.timeline-next {
  margin-top: 12px;
  font-size: 14px;
}

.roadmap-card {
  min-height: 220px;
  padding: 22px;
}

.roadmap-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.roadmap-status.todo {
  color: var(--orange);
  border-color: rgba(255, 184, 76, 0.45);
  background: rgba(255, 184, 76, 0.1);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.member-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  color: var(--muted);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 18px;
  align-items: stretch;
  margin-top: 18px;
  padding: 28px;
  border: 1px solid rgba(50, 214, 255, 0.32);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(50, 214, 255, 0.1), rgba(25, 229, 161, 0.05));
}

.contact-copy h2 {
  max-width: 760px;
}

.contact-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
  color: var(--muted);
}

.contact-list p {
  margin: 0;
}

.contact-list strong {
  color: var(--ink);
}

.qr-card {
  display: grid;
  place-items: center;
  text-align: center;
}

.qr-placeholder {
  width: 148px;
  height: 148px;
  border: 8px solid #f7fbff;
  border-radius: 6px;
  background:
    linear-gradient(90deg, #07111f 12px, transparent 12px 28px, #07111f 28px 40px, transparent 40px 56px, #07111f 56px 68px, transparent 68px 88px, #07111f 88px 104px, transparent 104px),
    linear-gradient(0deg, transparent 12px, #07111f 12px 24px, transparent 24px 42px, #07111f 42px 54px, transparent 54px 70px, #07111f 70px 82px, transparent 82px),
    #fff;
  box-shadow: 0 0 24px rgba(50, 214, 255, 0.2);
}

.qr-card strong {
  margin-top: 14px;
}

.qr-card span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  width: min(1180px, calc(100% - 48px));
  margin: 42px auto 0;
  padding: 26px 0 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 1100px) {
  .nav-links {
    gap: 10px;
    font-size: 12px;
  }

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

  .hero-console {
    width: min(680px, 100%);
  }
}

@media (max-width: 820px) {
  .site-nav {
    align-items: center;
  }

  .nav-links {
    display: none;
  }

  .feature-grid,
  .download-grid,
  .news-grid,
  .career-grid,
  .roadmap-grid,
  .docs-layout,
  .about-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .site-nav {
    top: 10px;
    width: calc(100% - 20px);
  }

  .brand {
    min-width: 0;
  }

  .brand-copy small,
  .nav-cta {
    display: none;
  }

  .hero {
    min-height: 82svh;
    padding: 100px 18px 36px;
    gap: 20px;
  }

  .hero h1 {
    font-size: clamp(48px, 16vw, 72px);
  }

  .hero-copy,
  .section-heading p,
  .about-grid p,
  .contact-copy p {
    font-size: 15px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 20px;
  }

  .signal-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 20px;
  }

  .signal-strip span {
    min-height: 64px;
    padding: 12px;
  }

  .signal-strip strong {
    font-size: 22px;
  }

  .hero-console {
    position: absolute;
    right: -130px;
    bottom: 38px;
    width: 360px;
    opacity: 0.18;
    pointer-events: none;
  }

  .console-top,
  .console-metrics {
    display: none;
  }

  .section,
  .site-footer {
    width: calc(100% - 32px);
  }

  .section {
    padding-top: 72px;
  }

  .timeline-card {
    grid-template-columns: 1fr;
  }
}