:root {
  --bg: #f6f1e8;
  --ink: #16253a;
  --ink-soft: #4f6176;
  --line: rgba(22, 37, 58, 0.16);
  --panel: rgba(255, 250, 244, 0.82);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --steel: #193449;
  --accent: #e16b1f;
  --accent-soft: #f5b37f;
  --ok: #1f9f86;
  --shadow: 0 20px 40px rgba(19, 34, 52, 0.14);
  --radius-xl: 26px;
  --radius-lg: 16px;
  --radius-sm: 12px;
  --maxw: 1160px;
  --mx: 50%;
  --my: 34%;
  --font-ui: "MiSans", "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  --font-display: "Alibaba PuHuiTi 3.0", "OPPOSans", "MiSans", "Source Han Sans SC", "PingFang SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  color: var(--ink);
  font-family: var(--font-ui);
  background:
    radial-gradient(900px 540px at 8% -10%, rgba(225, 107, 31, 0.14), transparent 65%),
    radial-gradient(820px 500px at 92% -6%, rgba(31, 159, 134, 0.14), transparent 66%),
    linear-gradient(180deg, #f9f5ed 0%, #f3ece2 100%);
  overflow-x: hidden;
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  background:
    radial-gradient(500px circle at var(--mx) var(--my), rgba(22, 80, 117, 0.12), transparent 62%),
    repeating-linear-gradient(90deg, rgba(22, 37, 58, 0.04) 0, rgba(22, 37, 58, 0.04) 1px, transparent 1px, transparent 34px),
    repeating-linear-gradient(0deg, rgba(22, 37, 58, 0.03) 0, rgba(22, 37, 58, 0.03) 1px, transparent 1px, transparent 34px);
}

body::after {
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 82%, transparent);
  background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.24) 40%, transparent 70%);
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.44;
  animation: float 13s ease-in-out infinite;
}

.glow-a {
  width: 360px;
  height: 360px;
  background: rgba(225, 107, 31, 0.45);
  left: -120px;
  top: 22%;
}

.glow-b {
  width: 300px;
  height: 300px;
  background: rgba(26, 89, 130, 0.4);
  right: -100px;
  top: 10%;
  animation-delay: 2.2s;
}

.glow-c {
  width: 260px;
  height: 260px;
  background: rgba(31, 159, 134, 0.4);
  left: 38%;
  bottom: -100px;
  animation-delay: 4.2s;
}

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.34;
  background-image: radial-gradient(rgba(19, 34, 52, 0.16) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
}

.topbar,
main,
footer {
  position: relative;
  z-index: 2;
  width: min(var(--maxw), calc(100% - 2.2rem));
  margin-inline: auto;
}

.topbar {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.74) 0%, rgba(250, 244, 236, 0.68) 100%);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0.8rem;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.72rem;
}

.brand-mark {
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 0.5rem;
  display: inline-grid;
  place-items: center;
  color: #fff;
  font: 800 0.78rem/1 var(--font-display);
  letter-spacing: 0.1em;
  background: linear-gradient(150deg, var(--steel), #2a5674);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.24);
}

.brand {
  display: block;
  font: 800 1rem/1 var(--font-display);
  letter-spacing: 0.01em;
}

.brand-sub {
  margin: 0.2rem 0 0;
  color: var(--ink-soft);
  font: 600 0.72rem/1 var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

nav {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font: 700 0.8rem/1 var(--font-display);
  letter-spacing: 0.04em;
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
  transition: color 180ms ease, background-color 180ms ease;
}

nav a:hover {
  color: #fff;
  background: var(--steel);
}

main {
  padding-top: 1.4rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.16fr 0.84fr;
  gap: 1rem;
  align-items: stretch;
}

.hero-copy,
.status-panel,
.capability article,
.route-card,
.launch,
.route-board {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero-copy {
  background: linear-gradient(145deg, rgba(255, 250, 242, 0.92) 0%, rgba(255, 246, 234, 0.78) 100%);
  padding: clamp(1.3rem, 2.4vw, 2rem);
  position: relative;
  overflow: hidden;
}

.hero-copy::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(180deg, var(--accent), var(--steel));
}

.eyebrow {
  margin: 0;
  color: var(--steel);
  font: 800 0.72rem/1.1 var(--font-display);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0.72rem 0 0;
  font: 900 clamp(2.1rem, 6vw, 4rem) / 1.03 var(--font-display);
  letter-spacing: -0.03em;
}

.hero h1 span {
  display: block;
  color: var(--accent);
  text-shadow: 0 6px 24px rgba(225, 107, 31, 0.28);
}

.lead {
  margin: 1rem 0 0;
  max-width: 60ch;
  color: var(--ink-soft);
  line-height: 1.74;
}

.actions {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font: 800 0.8rem/1 var(--font-display);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 0.85rem;
  padding: 0.76rem 1.08rem;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(145deg, var(--accent), #cb5712);
  box-shadow: 0 10px 22px rgba(203, 87, 18, 0.33);
}

.btn-secondary {
  color: #fff;
  background: linear-gradient(145deg, var(--steel), #21435d);
  box-shadow: 0 10px 22px rgba(25, 52, 73, 0.28);
}

.hero-points {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
  color: var(--ink-soft);
}

.hero-points li {
  position: relative;
  padding-left: 1.35rem;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52rem;
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 999px;
  background: linear-gradient(140deg, var(--ok), #1c7a67);
  box-shadow: 0 0 0 3px rgba(31, 159, 134, 0.18);
}

.status-panel {
  background: linear-gradient(170deg, rgba(26, 51, 70, 0.92) 0%, rgba(24, 42, 58, 0.92) 100%);
  color: #deebf4;
  padding: 1.1rem;
  display: grid;
  gap: 0.85rem;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-head p {
  margin: 0;
  color: #e9f5fd;
  font: 700 0.9rem/1 var(--font-display);
  letter-spacing: 0.03em;
}

.live {
  color: #bce2f6;
  font: 700 0.72rem/1 var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
}

.live i {
  width: 0.54rem;
  height: 0.54rem;
  border-radius: 50%;
  background: #31d6b7;
  box-shadow: 0 0 0 rgba(49, 214, 183, 0.55);
  animation: pulse 1.6s ease-out infinite;
}

.metric-grid {
  display: grid;
  gap: 0.56rem;
}

.metric {
  border: 1px solid rgba(190, 221, 240, 0.22);
  border-radius: var(--radius-sm);
  background: rgba(245, 251, 255, 0.07);
  padding: 0.7rem 0.76rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
}

.metric span {
  color: #b8cfde;
  font-size: 0.8rem;
}

.metric strong {
  justify-self: end;
  font: 800 1.16rem/1 var(--font-display);
  color: #fff;
}

.metric em {
  margin-left: 0.35rem;
  font-style: normal;
  color: #f4c093;
  font: 700 0.74rem/1 var(--font-display);
}

.signal-track {
  height: 0.3rem;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(228, 244, 255, 0.2);
}

.signal-track span {
  display: block;
  width: 30%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #47d8c3, #ffba7f);
  animation: sweep 2.6s cubic-bezier(0.3, 0, 0.2, 1) infinite;
}

.panel-foot {
  margin: 0;
  color: #a8c4d8;
  font-size: 0.8rem;
}

.capability,
.route-board,
.launch {
  margin-top: 0.95rem;
}

.capability {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.capability article {
  position: relative;
  padding: 1rem;
  background: linear-gradient(175deg, var(--panel-strong) 0%, rgba(248, 241, 232, 0.95) 100%);
  overflow: hidden;
}

.capability article::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--steel));
}

.cap-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2rem;
  padding: 0.28rem 0.5rem;
  border-radius: 999px;
  color: #fff;
  background: var(--steel);
  font: 700 0.7rem/1 var(--font-display);
  letter-spacing: 0.1em;
}

.capability h2 {
  margin: 0.72rem 0 0;
  font: 800 1.04rem/1.22 var(--font-display);
}

.capability p {
  margin: 0.58rem 0 0;
  color: var(--ink-soft);
  line-height: 1.65;
}

.section-head p {
  margin: 0;
  color: var(--steel);
  font: 800 0.72rem/1 var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-head h2 {
  margin: 0.45rem 0 0;
  font: 900 clamp(1.25rem, 3vw, 1.95rem) / 1.15 var(--font-display);
}

.route-board {
  background: linear-gradient(180deg, rgba(255, 248, 240, 0.92), rgba(248, 241, 232, 0.9));
  padding: 1.1rem;
}

.route-grid {
  margin-top: 0.92rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.76rem;
}

.route-card {
  background: var(--panel-strong);
  border-radius: var(--radius-lg);
  padding: 0.95rem;
  transition: transform 220ms ease, box-shadow 220ms ease;
  position: relative;
}

.route-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 28px rgba(19, 40, 58, 0.16);
}

.route-tag {
  display: inline-flex;
  border: 1px solid rgba(225, 107, 31, 0.28);
  background: rgba(225, 107, 31, 0.1);
  color: #b44f10;
  border-radius: 999px;
  padding: 0.28rem 0.58rem;
  font: 700 0.7rem/1 var(--font-display);
  letter-spacing: 0.08em;
}

.route-card h3 {
  margin: 0.65rem 0 0;
  font: 800 1rem/1.2 var(--font-display);
}

.route-card p {
  margin: 0.5rem 0;
  color: var(--ink-soft);
  line-height: 1.62;
}

.route-card code {
  display: inline-block;
  border-radius: 999px;
  padding: 0.33rem 0.63rem;
  color: #1f4d6d;
  border: 1px solid rgba(31, 77, 109, 0.18);
  background: rgba(31, 77, 109, 0.08);
  font: 700 0.76rem/1 var(--font-display);
}

.launch {
  background: linear-gradient(155deg, rgba(25, 52, 73, 0.95) 0%, rgba(30, 44, 58, 0.95) 100%);
  color: #e4f0f8;
  padding: 1.2rem;
}

.launch .section-head p {
  color: #97cbec;
}

.launch .section-head h2 {
  color: #fff;
}

.launch ol {
  margin: 0.9rem 0 0;
  padding-left: 1.2rem;
  color: #bfd3e2;
  line-height: 1.75;
}

.launch li + li {
  margin-top: 0.5rem;
}

.launch strong {
  color: #fff;
}

footer {
  margin-top: 1rem;
  border-top: 1px dashed rgba(22, 37, 58, 0.26);
  padding: 0.95rem 0 2rem;
  color: #5f6f80;
  font-size: 0.85rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
}

.reveal.show {
  animation: rise 620ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(49, 214, 183, 0.48);
  }
  100% {
    box-shadow: 0 0 0 12px rgba(49, 214, 183, 0);
  }
}

@keyframes sweep {
  0% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(300%);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

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

  .capability,
  .route-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 740px) {
  .topbar {
    border-radius: var(--radius-sm);
    flex-direction: column;
    align-items: flex-start;
    gap: 0.62rem;
  }

  nav {
    width: 100%;
    gap: 0.34rem;
    flex-wrap: wrap;
  }

  nav a {
    padding: 0.46rem 0.66rem;
  }

  .hero h1 {
    font-size: clamp(1.9rem, 10vw, 2.8rem);
  }

  .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}