:root {
  --bg: #08111f;
  --bg-soft: #0e1730;
  --card: rgba(12, 20, 41, 0.78);
  --card-strong: rgba(16, 26, 52, 0.94);
  --border: rgba(255, 255, 255, 0.11);
  --text: #eff4ff;
  --muted: rgba(239, 244, 255, 0.72);
  --muted-2: rgba(239, 244, 255, 0.54);
  --brand: #7dd3fc;
  --brand-2: #8b5cf6;
  --brand-3: #f59e0b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(125, 211, 252, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(139, 92, 246, 0.16), transparent 28%),
    linear-gradient(180deg, #050a14 0%, var(--bg) 45%, #07101d 100%);
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  line-height: 1.65;
  min-height: 100vh;
}

h1,
h2,
h3,
.brand strong {
  font-family: "Noto Serif SC", "Songti SC", serif;
  line-height: 1.2;
}

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

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.bg-orb {
  position: fixed;
  inset: auto;
  border-radius: 999px;
  filter: blur(32px);
  opacity: 0.65;
  pointer-events: none;
  z-index: -1;
  animation: float 16s ease-in-out infinite;
}

.bg-orb-1 {
  top: 110px;
  right: 8%;
  width: 220px;
  height: 220px;
  background: rgba(125, 211, 252, 0.22);
}

.bg-orb-2 {
  bottom: 18%;
  left: 6%;
  width: 280px;
  height: 280px;
  background: rgba(139, 92, 246, 0.2);
  animation-delay: -8s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-14px) scale(1.04);
  }
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(20px);
  background: rgba(6, 12, 24, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #03111f;
  background: linear-gradient(135deg, #8be9ff, #c4b5fd);
  box-shadow: 0 12px 28px rgba(125, 211, 252, 0.22);
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-text strong {
  font-size: 15px;
}

.brand-text small,
.nav a,
.eyebrow,
.panel-label,
.service-icon,
.footer p,
.stat span,
.note-card span {
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.nav a {
  font-size: 14px;
}

.hero,
.section {
  padding: 64px 0;
}

.hero-grid,
.hero-mini-grid {
  display: grid;
  grid-template-columns: 1.45fr 0.95fr;
  gap: 28px;
  align-items: stretch;
}

.hero h1,
.hero-mini h1 {
  margin: 12px 0 16px;
  font-size: clamp(2.4rem, 5vw, 4.9rem);
  letter-spacing: -0.03em;
}

.lead {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 58ch;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--brand), #c4b5fd);
  color: #02101d;
  font-weight: 700;
}

.btn-ghost {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.hero-stats,
.about-grid,
.service-grid,
.mini-notes {
  display: grid;
  gap: 16px;
}

.hero-stats {
  margin-top: 28px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-panel,
.hero-copy,
.info-card,
.service-card,
.cta-card,
.embed-shell,
.panel-card,
.note-card {
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  backdrop-filter: blur(18px);
}

.hero-copy,
.hero-panel,
.cta-card,
.embed-shell {
  border-radius: var(--radius);
  padding: 28px;
}

.hero-copy {
  background: linear-gradient(180deg, rgba(16, 26, 52, 0.85), rgba(9, 15, 29, 0.78));
}

.hero-panel {
  display: grid;
  gap: 16px;
}

.panel-card,
.note-card,
.info-card,
.service-card {
  border-radius: 20px;
  padding: 22px;
}

.panel-accent {
  background:
    radial-gradient(circle at top right, rgba(125, 211, 252, 0.12), transparent 45%),
    rgba(11, 18, 37, 0.88);
}

.panel-card h2,
.section-heading h2,
.cta-card h2,
.embed-header h2 {
  margin: 8px 0 10px;
  font-size: clamp(1.6rem, 2.2vw, 2.5rem);
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.checklist li {
  padding-left: 24px;
  position: relative;
  color: var(--muted);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 0 4px rgba(125, 211, 252, 0.08);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

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

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

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  margin-bottom: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  font-weight: 700;
}

.cta-section {
  padding-top: 24px;
}

.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background:
    radial-gradient(circle at left, rgba(139, 92, 246, 0.14), transparent 38%),
    linear-gradient(135deg, rgba(16, 26, 52, 0.92), rgba(8, 17, 31, 0.82));
}

.footer {
  padding: 26px 0 34px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(4, 10, 20, 0.75);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer p {
  margin: 6px 0 0;
}

.footer-record {
  font-size: 13px;
  color: var(--muted-2);
}

.footer-record a {
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-mini {
  padding-bottom: 18px;
}

.mini-notes {
  align-content: start;
}

.note-card {
  background: rgba(255, 255, 255, 0.05);
}

.note-card strong,
.info-card h3,
.service-card h3 {
  display: block;
  margin-bottom: 8px;
}

.embed-shell {
  padding: 22px;
  overflow: hidden;
}

.embed-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
}

.embed-header p {
  color: var(--muted);
  margin: 0;
}

.embed-frame-wrap {
  border-radius: 20px;
  overflow: hidden;
  min-height: 700px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

@media (max-width: 980px) {
  .hero-grid,
  .hero-mini-grid,
  .about-grid,
  .service-grid,
  .hero-stats,
  .cta-card {
    grid-template-columns: 1fr;
  }

  .cta-card,
  .footer-inner,
  .embed-header,
  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-inner {
    padding: 14px 0;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--max), calc(100% - 28px));
  }

  .hero,
  .section {
    padding: 42px 0;
  }

  .hero-copy,
  .hero-panel,
  .cta-card,
  .embed-shell {
    padding: 20px;
  }

  .nav {
    gap: 12px;
  }

  .hero h1,
  .hero-mini h1 {
    font-size: clamp(2rem, 11vw, 3.2rem);
  }
}