:root {
  color-scheme: dark;
  --bg: #070b16;
  --bg-soft: #0d1426;
  --primary: #28f0c4;
  --secondary: #5a8bff;
  --accent: #ff7aa2;
  --text: #e6ecff;
  --muted: rgba(230, 236, 255, 0.62);
  --line: rgba(90, 139, 255, 0.2);
  --card: rgba(10, 18, 36, 0.75);
  --shadow: 0 24px 60px rgba(8, 12, 24, 0.5);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Noto Sans SC", "Space Grotesk", sans-serif;
  background: radial-gradient(circle at top, rgba(90, 139, 255, 0.2), transparent 55%),
    radial-gradient(circle at 20% 30%, rgba(40, 240, 196, 0.18), transparent 50%),
    linear-gradient(180deg, #05070f 0%, #070b16 40%, #04060e 100%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  letter-spacing: 0.2px;
  overflow-x: hidden;
}

.noise {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
  opacity: 0.6;
  pointer-events: none;
  mix-blend-mode: screen;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 6vw;
  background: rgba(5, 8, 16, 0.6);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(90, 139, 255, 0.15);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", sans-serif;
}

.brand-dot {
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  box-shadow: 0 0 14px rgba(40, 240, 196, 0.6);
}

.brand-name {
  font-size: 1.1rem;
  font-weight: 600;
}

.brand-sub {
  font-size: 0.85rem;
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 22px;
  align-items: center;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.site-nav a:hover {
  color: var(--text);
}

.nav-cta {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(90, 139, 255, 0.5);
  color: var(--text);
}

main {
  position: relative;
  z-index: 2;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 50px;
  padding: 80px 6vw 40px;
  align-items: center;
}

.eyebrow {
  font-size: 0.9rem;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.35rem;
  margin-bottom: 18px;
}

h1 {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 20px;
}

.subtitle {
  font-size: 1.25rem;
  margin-bottom: 18px;
  color: var(--primary);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.lead {
  color: var(--muted);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

button {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 1rem;
  border-radius: 999px;
  padding: 12px 26px;
  cursor: pointer;
  border: none;
}

.primary {
  background: linear-gradient(120deg, var(--primary), var(--secondary));
  color: #02060f;
  box-shadow: 0 12px 30px rgba(40, 240, 196, 0.3);
}

.ghost {
  background: transparent;
  border: 1px solid rgba(230, 236, 255, 0.3);
  color: var(--text);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 18px;
}

.metric {
  font-size: 1.6rem;
  font-weight: 600;
}

.metric-label {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-visual {
  position: relative;
}

.orb {
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(90, 139, 255, 0.5), transparent 70%);
  filter: blur(10px);
  top: -80px;
  right: -40px;
  animation: float 8s ease-in-out infinite;
}

.frame {
  position: relative;
  background: rgba(12, 20, 40, 0.8);
  border-radius: 24px;
  border: 1px solid rgba(90, 139, 255, 0.3);
  padding: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(40, 240, 196, 0.15), transparent 50%);
  pointer-events: none;
}

.frame-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "Space Grotesk", sans-serif;
  margin-bottom: 20px;
}

.pill {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(40, 240, 196, 0.2);
  color: var(--primary);
  font-size: 0.8rem;
}

.frame-body {
  display: grid;
  gap: 20px;
}

.track {
  display: flex;
  align-items: center;
  gap: 16px;
}

.track-line {
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--secondary), transparent);
}

.track-node {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(230, 236, 255, 0.3);
}

.track-node.active {
  background: var(--primary);
  box-shadow: 0 0 12px rgba(40, 240, 196, 0.7);
}

.stack {
  display: grid;
  gap: 14px;
}

.stack-card {
  background: rgba(8, 14, 28, 0.7);
  border-radius: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(90, 139, 255, 0.2);
}

.stack-card h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.stack-card p {
  color: var(--muted);
  font-size: 0.85rem;
}

/* ----- Trust: Logo wall + Dashboard ----- */
.trust-section {
  padding: 56px 6vw 70px;
  background: linear-gradient(180deg, transparent 0%, rgba(12, 20, 40, 0.4) 30%, rgba(12, 20, 40, 0.5) 100%);
  border-top: 1px solid rgba(90, 139, 255, 0.08);
}

.trust-eyebrow {
  font-size: 0.85rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}

.trust-section .section-title {
  margin-bottom: 36px;
}

.logo-wall-wrap {
  margin-bottom: 48px;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.logo-wall {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 24px 0;
  animation: logoScroll 35s linear infinite;
}

.logo-wall:hover {
  animation-play-state: paused;
}

@keyframes logoScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.logo-item {
  flex-shrink: 0;
  padding: 14px 28px;
  border-radius: 14px;
  background: rgba(10, 18, 36, 0.7);
  border: 1px solid rgba(90, 139, 255, 0.2);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.logo-item:hover {
  border-color: rgba(40, 240, 196, 0.4);
  box-shadow: 0 8px 24px rgba(40, 240, 196, 0.12);
}

.logo-text {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
}

.logo-item:hover .logo-text {
  color: var(--text);
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.dashboard-card {
  position: relative;
  padding: 28px 24px;
  border-radius: 20px;
  background: rgba(8, 14, 28, 0.75);
  border: 1px solid rgba(90, 139, 255, 0.22);
  box-shadow: 0 16px 40px rgba(5, 8, 16, 0.35);
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.dashboard-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent);
  opacity: 0.6;
}

.dashboard-card:hover {
  transform: translateY(-6px);
  border-color: rgba(40, 240, 196, 0.45);
  box-shadow: 0 24px 48px rgba(40, 240, 196, 0.15);
}

.dashboard-icon {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--primary);
  opacity: 0.9;
}

.dashboard-value {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text);
  letter-spacing: -0.02em;
}

.dashboard-unit {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-left: 2px;
}

.dashboard-label {
  display: block;
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

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

@media (max-width: 560px) {
  .dashboard {
    grid-template-columns: 1fr;
  }

  .dashboard-value {
    font-size: 2rem;
  }
}

.section {
  padding: 70px 6vw;
}

.section-title {
  max-width: 640px;
  margin-bottom: 40px;
}

.section-title h2 {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 12px;
}

.section-title p {
  color: var(--muted);
}

.grid.capabilities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  padding: 22px;
  background: var(--card);
  border: 1px solid rgba(90, 139, 255, 0.18);
  border-radius: 18px;
  box-shadow: 0 20px 40px rgba(5, 8, 16, 0.25);
  transition: transform 0.3s ease, border 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(40, 240, 196, 0.6);
}

.card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.value {
  background: linear-gradient(120deg, rgba(12, 20, 40, 0.85), rgba(6, 12, 24, 0.9));
  border-top: 1px solid rgba(90, 139, 255, 0.12);
  border-bottom: 1px solid rgba(90, 139, 255, 0.12);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.value-card {
  padding: 24px;
  border-radius: 18px;
  background: rgba(8, 14, 28, 0.6);
  border: 1px solid rgba(90, 139, 255, 0.2);
  box-shadow: var(--shadow);
}

.value-card h3 {
  margin-bottom: 12px;
}

.value-card p {
  color: var(--muted);
}

.audience {
  background: radial-gradient(circle at 20% 0%, rgba(255, 122, 162, 0.12), transparent 55%);
}

.audience-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.audience-item {
  padding: 18px 20px;
  border-radius: 999px;
  border: 1px solid rgba(90, 139, 255, 0.25);
  background: rgba(10, 18, 36, 0.55);
  text-align: center;
}

.cta {
  padding-bottom: 100px;
}

.cta-card {
  background: linear-gradient(135deg, rgba(40, 240, 196, 0.12), rgba(90, 139, 255, 0.18));
  border-radius: 28px;
  padding: 52px 48px;
  text-align: center;
  border: 1px solid rgba(90, 139, 255, 0.35);
  box-shadow: 0 24px 60px rgba(5, 8, 16, 0.4), 0 0 0 1px rgba(40, 240, 196, 0.08);
}

.cta-card h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 16px;
}

.cta-card p {
  color: var(--muted);
  margin-bottom: 24px;
}

.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 6vw 48px;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid rgba(90, 139, 255, 0.12);
  text-align: center;
}

.site-footer .footer-main {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-bottom: 16px;
}

/* 备案号：首页底部正中央，符合法规要求 */
.site-footer .footer-icp-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  padding-top: 12px;
  border-top: 1px solid rgba(90, 139, 255, 0.08);
}

.site-footer .footer-icp {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
}
.site-footer .footer-icp:hover {
  color: var(--accent);
  text-decoration: underline;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(20px);
  }
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    gap: 16px;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 50px;
  }

  .cta-card {
    padding: 32px 20px;
  }

  .site-footer {
    flex-direction: column;
  }
}