:root {
  --bg: #060d16;
  --bg-soft: #0c1726;
  --card: rgba(12, 23, 38, 0.72);
  --text: #f4f7fb;
  --text-soft: #b8c5d9;
  --line: rgba(147, 172, 206, 0.22);
  --primary: #21c7a8;
  --primary-deep: #12957d;
  --accent: #ff8f5a;
  --font-title: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 18px;
  --shadow: 0 22px 48px rgba(5, 12, 21, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background: radial-gradient(circle at 12% -8%, rgba(33, 199, 168, 0.2), transparent 38%),
    radial-gradient(circle at 92% 6%, rgba(255, 143, 90, 0.18), transparent 35%), var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.3;
  z-index: -1;
}

.ambient-top {
  width: 520px;
  height: 520px;
  background: #1dc5b9;
  top: -240px;
  left: -120px;
}

.ambient-bottom {
  width: 420px;
  height: 420px;
  background: #ff7d68;
  bottom: -200px;
  right: -120px;
}

.container {
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(5, 11, 19, 0.58);
  border-bottom: 1px solid rgba(131, 156, 189, 0.1);
}

.nav-wrap {
  display: flex;
  align-items: center;
  min-height: 74px;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--text);
  gap: 10px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-family: var(--font-title);
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), #5de6cd);
  color: #022921;
}

.brand-name {
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.96rem;
}

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

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  padding: 8px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  margin: 6px 0;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 220ms ease, box-shadow 220ms ease, background 220ms ease, color 220ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-sm {
  padding: 10px 14px;
  font-size: 0.9rem;
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), #4be4bf);
  color: #033428;
  box-shadow: 0 10px 24px rgba(33, 199, 168, 0.35);
}

.btn.primary:hover {
  box-shadow: 0 14px 28px rgba(33, 199, 168, 0.48);
}

.btn.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}

.btn.secondary:hover,
.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn.ghost {
  border-color: var(--line);
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 30px;
  align-items: center;
  padding: 70px 0 52px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #8cc9ff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-title);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  max-width: 12ch;
}

.hero-subtitle {
  margin: 20px 0 0;
  color: var(--text-soft);
  font-size: 1.06rem;
  max-width: 46ch;
}

.hero-actions {
  margin: 30px 0 0;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-meta {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-meta li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.84rem;
  color: #d6e4f5;
  background: rgba(255, 255, 255, 0.03);
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(9, 22, 37, 0.9), rgba(8, 16, 30, 0.8));
  box-shadow: var(--shadow);
}

.panel-head {
  height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border-bottom: 1px solid rgba(136, 160, 192, 0.22);
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot.red {
  background: #ff5f56;
}

.dot.yellow {
  background: #ffbd2e;
}

.dot.green {
  background: #27c93f;
}

.panel-body {
  padding: 18px;
  display: grid;
  gap: 10px;
}

.panel-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: rgba(142, 161, 190, 0.08);
  border: 1px solid rgba(139, 163, 191, 0.14);
  border-radius: 12px;
  padding: 12px;
}

.panel-item span {
  font-size: 0.9rem;
  color: #c4d1e4;
}

.panel-item strong {
  font-size: 0.94rem;
}

.ok {
  color: #63f2cd;
}

.warn {
  color: #ffb082;
}

.panel-log {
  border-top: 1px solid rgba(136, 160, 192, 0.22);
  background: rgba(7, 14, 24, 0.82);
  padding: 12px 18px 16px;
}

.panel-log p {
  margin: 5px 0;
  font-family: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
  color: #99ffc6;
  font-size: 0.82rem;
}

.section {
  padding: 54px 0;
}

.platform-strip {
  padding: 12px 0 8px;
}

.platform-title h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  max-width: 18ch;
}

.platform-grid {
  margin-top: 16px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.platform-grid article {
  border: 1px solid rgba(92, 211, 189, 0.36);
  background: linear-gradient(135deg, rgba(33, 199, 168, 0.1), rgba(255, 143, 90, 0.08));
  border-radius: 14px;
  min-height: 64px;
  display: grid;
  place-items: center;
  font-family: var(--font-title);
  font-weight: 700;
  color: #e2fff8;
}

.section-title-wrap h2 {
  font-size: clamp(1.56rem, 2.5vw, 2.25rem);
  max-width: 16ch;
}

.feature-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  background: var(--card);
}

.feature-card h3 {
  font-size: 1.1rem;
}

.feature-card p {
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.flow-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.flow-list li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.flow-list span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(33, 199, 168, 0.18), rgba(255, 143, 90, 0.2));
  color: #d8fff5;
  font-weight: 700;
  font-family: var(--font-title);
}

.flow-list p {
  margin: 8px 0 0;
  color: var(--text-soft);
}

.scene-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.scene-grid article {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  padding: 20px;
}

.scene-grid p {
  margin: 10px 0 0;
  color: var(--text-soft);
}

.cta {
  padding-bottom: 80px;
}

.cta-inner {
  border: 1px solid rgba(92, 211, 189, 0.32);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(33, 199, 168, 0.17), rgba(255, 143, 90, 0.11), rgba(18, 149, 125, 0.16));
  padding: 30px;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr auto;
  align-items: center;
}

.cta-inner h2 {
  max-width: 15ch;
}

.cta-inner p {
  margin: 10px 0 0;
  color: #dbebfd;
}

.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-footer {
  border-top: 1px solid rgba(128, 151, 180, 0.2);
  padding: 18px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--text-soft);
  font-size: 0.9rem;
  text-align: center;
}

.footer-inner p {
  margin: 0;
}

.beian-link {
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 197, 217, 0.35);
}

.beian-link:hover {
  color: var(--text);
  border-bottom-color: rgba(244, 247, 251, 0.8);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 560ms ease, transform 560ms ease;
}

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

@media (max-width: 1060px) {
  .container {
    width: min(1160px, calc(100% - 36px));
  }

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

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

  .hero {
    grid-template-columns: 1fr;
    padding-top: 50px;
  }

  .hero-panel {
    max-width: 760px;
  }

  .cta-inner {
    grid-template-columns: 1fr;
  }

  .cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 780px) {
  .container {
    width: min(1160px, calc(100% - 24px));
  }

  .nav-wrap {
    min-height: 64px;
    position: relative;
  }

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

  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    margin-left: 0;
    min-width: 180px;
    padding: 8px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(5, 11, 19, 0.96);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .nav-links a {
    width: 100%;
    border-radius: 10px;
    padding: 8px 10px;
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.08);
  }

  .nav-links.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-wrap .btn-sm {
    display: none;
  }

  h1 {
    max-width: 14ch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .feature-grid,
  .scene-grid {
    grid-template-columns: 1fr;
  }

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

  .flow-list li {
    grid-template-columns: 1fr;
  }

  .flow-list span {
    width: 48px;
    height: 48px;
  }

  .panel-item {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .site-header {
    backdrop-filter: blur(10px);
  }

  .hero {
    padding-top: 34px;
  }

  .hero-subtitle {
    font-size: 0.98rem;
  }

  .section {
    padding: 42px 0;
  }

  .feature-card,
  .scene-grid article,
  .flow-list li,
  .cta-inner {
    padding: 16px;
  }

  .footer-inner {
    font-size: 0.82rem;
  }
}