:root {
  --bg: #07111f;
  --bg-soft: #0c1b2f;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --text: #f7fbff;
  --muted: #a8b7ca;
  --line: rgba(255, 255, 255, 0.14);
  --primary: #2f7dff;
  --primary-light: #67e8f9;
  --gold: #d7b46a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  --radius: 24px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  background:
    radial-gradient(circle at 10% 5%, rgba(47, 125, 255, 0.28), transparent 34%),
    radial-gradient(circle at 85% 15%, rgba(103, 232, 249, 0.17), transparent 32%),
    linear-gradient(135deg, #07111f 0%, #0a1830 46%, #08101e 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 78%);
}

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

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

p,
h1,
h2,
h3 {
  margin-top: 0;
}

p {
  color: var(--muted);
}

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

.section {
  position: relative;
  padding: 108px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid transparent;
  background: rgba(7, 17, 31, 0.74);
  backdrop-filter: blur(18px);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(7, 17, 31, 0.92);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.26);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(103, 232, 249, 0.42);
  border-radius: 14px;
  color: var(--primary-light);
  background: linear-gradient(135deg, rgba(47, 125, 255, 0.24), rgba(103, 232, 249, 0.08));
  box-shadow: 0 12px 28px rgba(47, 125, 255, 0.2);
}

.brand-text {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #d8e5f7;
  font-size: 15px;
}

.site-nav a {
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--primary-light);
}

.nav-cta {
  padding: 9px 16px;
  border: 1px solid rgba(103, 232, 249, 0.35);
  border-radius: 999px;
  background: rgba(103, 232, 249, 0.08);
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding-top: 92px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: 56px;
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.35;
}

.hero-lead {
  max-width: 690px;
  margin-bottom: 34px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  color: #06101d;
  background: linear-gradient(135deg, var(--primary-light), #7aa7ff);
  box-shadow: 0 14px 34px rgba(103, 232, 249, 0.22);
}

.button-ghost {
  border: 1px solid var(--line);
  color: #d8e5f7;
  background: rgba(255, 255, 255, 0.05);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 620px;
}

.hero-stats div,
.card,
.brand-card,
.contact-card,
.business-item,
.hero-panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-strong), rgba(255, 255, 255, 0.045));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-stats div {
  padding: 18px;
  border-radius: 18px;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  color: var(--text);
  font-size: 20px;
}

.hero-stats span {
  color: var(--muted);
  font-size: 14px;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  border-radius: 34px;
}

.hero-panel::before {
  position: absolute;
  inset: 56px;
  content: "";
  border: 1px solid rgba(103, 232, 249, 0.22);
  border-radius: 50%;
  box-shadow: inset 0 0 80px rgba(47, 125, 255, 0.14);
}

.hero-panel::after {
  position: absolute;
  right: -90px;
  bottom: -90px;
  width: 260px;
  height: 260px;
  content: "";
  border-radius: 999px;
  background: radial-gradient(circle, rgba(103, 232, 249, 0.28), transparent 64%);
}

.panel-topline {
  height: 4px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--gold));
}

.panel-content {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 516px;
  flex-direction: column;
  justify-content: flex-end;
  padding: 42px;
}

.panel-label {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 18px;
  padding: 8px 12px;
  border: 1px solid rgba(103, 232, 249, 0.3);
  border-radius: 999px;
  color: var(--primary-light);
  font-size: 13px;
}

.panel-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.panel-matrix span {
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  color: #dce9fb;
  background: rgba(7, 17, 31, 0.48);
}

.hero-orbit {
  position: absolute;
  border: 1px solid rgba(103, 232, 249, 0.15);
  border-radius: 50%;
  pointer-events: none;
}

.hero-orbit-one {
  top: 18%;
  right: 8%;
  width: 520px;
  height: 520px;
}

.hero-orbit-two {
  right: -6%;
  bottom: 6%;
  width: 740px;
  height: 740px;
}

.two-column {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.section-text {
  padding-left: 36px;
  border-left: 1px solid var(--line);
}

.section-text p:last-child {
  margin-bottom: 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-heading.narrow {
  max-width: 680px;
}

.cards {
  display: grid;
  gap: 20px;
}

.advantage-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  min-height: 260px;
  padding: 28px;
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover,
.business-item:hover,
.brand-card:hover {
  transform: translateY(-4px);
  border-color: rgba(103, 232, 249, 0.36);
}

.card-index {
  display: inline-flex;
  margin-bottom: 54px;
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.business-section {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.035), transparent);
}

.business-list {
  display: grid;
  gap: 18px;
}

.business-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  align-items: start;
  padding: 28px;
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.business-number {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border-radius: 18px;
  color: #06101d;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-light), var(--gold));
}

.brand-grid {
  display: grid;
  grid-template-columns: 1.25fr repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.brand-card {
  min-height: 210px;
  padding: 28px;
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.brand-card.large {
  grid-row: span 2;
  min-height: 438px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    radial-gradient(circle at 20% 20%, rgba(103, 232, 249, 0.16), transparent 42%),
    linear-gradient(180deg, rgba(47, 125, 255, 0.16), rgba(255, 255, 255, 0.05));
}

.contact-section {
  padding-bottom: 96px;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 30px;
  align-items: center;
  padding: 42px;
  border: 1px solid rgba(103, 232, 249, 0.22);
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(47, 125, 255, 0.2), rgba(103, 232, 249, 0.06)),
    rgba(255, 255, 255, 0.045);
  box-shadow: var(--shadow);
}

.contact-card {
  padding: 28px;
  border-radius: var(--radius);
}

.contact-card span,
.contact-card strong {
  display: block;
}

.contact-card span {
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.contact-card strong {
  margin: 10px 0;
  font-size: 24px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: rgba(3, 10, 20, 0.72);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px 0;
  font-size: 14px;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.footer-icp {
  color: var(--muted);
  transition: color 0.2s ease;
}

.footer-icp:hover {
  color: var(--primary-light);
}

@media (max-width: 980px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    gap: 18px;
  }

  .site-nav a {
    white-space: nowrap;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid,
  .two-column,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: 440px;
  }

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

  .brand-card.large {
    grid-column: span 2;
    grid-row: auto;
    min-height: 300px;
  }

  .section-text {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .section {
    padding: 74px 0;
  }

  .brand-text {
    white-space: normal;
  }

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

  .hero-grid {
    gap: 36px;
  }

  .hero-stats,
  .advantage-grid,
  .brand-grid,
  .panel-matrix {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: 380px;
    border-radius: 26px;
  }

  .panel-content,
  .contact-panel {
    padding: 26px;
  }

  .business-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .brand-card.large {
    grid-column: auto;
  }

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

  .footer-meta {
    justify-content: flex-start;
  }
}