* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: #1f2937;
  background: #ffffff;
  line-height: 1.7;
}

a {
  color: #2563eb;
  text-decoration: none;
}

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(229, 231, 235, 0.86);
  backdrop-filter: blur(14px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 24px;
}

.brand {
  color: #111827;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
}

.nav a {
  color: #374151;
  font-weight: 600;
}

.nav a:hover {
  color: #2563eb;
}

.hero {
  overflow: hidden;
  padding: 84px 0 72px;
  background:
    radial-gradient(circle at 86% 18%, rgba(20, 184, 166, 0.2), transparent 30%),
    radial-gradient(circle at 8% 8%, rgba(37, 99, 235, 0.16), transparent 34%),
    linear-gradient(135deg, #f8fafc 0%, #eef6f3 46%, #f8fafc 100%);
  border-bottom: 1px solid #e5e7eb;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: 56px;
}

.hero-content {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: #0f766e;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: 56px;
  line-height: 1.15;
  color: #111827;
}

.hero p {
  max-width: 720px;
  margin: 0 0 32px;
  font-size: 19px;
  color: #4b5563;
}

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

.button {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  background: #2563eb;
  color: white;
  font-weight: 600;
}

.button.secondary {
  background: white;
  color: #111827;
  box-shadow: inset 0 0 0 1px #d1d5db;
}

.hero-visual {
  position: relative;
  min-height: 410px;
  padding: 22px;
  border: 1px solid rgba(148, 163, 184, 0.38);
  border-radius: 22px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.94), rgba(248, 250, 252, 0.78)),
    linear-gradient(135deg, rgba(37, 99, 235, 0.16), rgba(20, 184, 166, 0.12));
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.14);
}

.hero-visual::before {
  position: absolute;
  inset: 72px 38px auto auto;
  width: 118px;
  height: 118px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  content: "";
}

.visual-topbar {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
}

.visual-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #94a3b8;
}

.visual-topbar span:nth-child(2) {
  background: #14b8a6;
}

.visual-topbar span:nth-child(3) {
  background: #f59e0b;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.metric-row div {
  padding: 16px;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.84);
}

.metric-row strong,
.metric-row span {
  display: block;
}

.metric-row strong {
  color: #111827;
  font-size: 24px;
  line-height: 1.1;
}

.metric-row span {
  margin-top: 4px;
  color: #64748b;
  font-size: 13px;
}

.dashboard-body {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(140px, 0.7fr);
  gap: 16px;
  height: 190px;
}

.map-panel,
.chart-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
}

.map-panel {
  background:
    linear-gradient(rgba(37, 99, 235, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.08) 1px, transparent 1px),
    rgba(255, 255, 255, 0.84);
  background-size: 28px 28px;
}

.map-panel::before,
.map-panel::after {
  position: absolute;
  border-radius: 999px;
  content: "";
}

.map-panel::before {
  inset: 38px 52px 42px 34px;
  border: 2px solid rgba(37, 99, 235, 0.3);
}

.map-panel::after {
  inset: 68px 32px 66px 84px;
  border: 2px solid rgba(20, 184, 166, 0.36);
}

.node {
  position: absolute;
  z-index: 1;
  width: 12px;
  height: 12px;
  border: 3px solid white;
  border-radius: 50%;
  background: #2563eb;
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35);
}

.n1 {
  left: 22%;
  top: 34%;
}

.n2 {
  left: 58%;
  top: 22%;
  background: #14b8a6;
}

.n3 {
  left: 70%;
  top: 64%;
  background: #f59e0b;
}

.n4 {
  left: 34%;
  top: 70%;
}

.chart-panel {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 10px;
  padding: 22px 16px;
}

.chart-panel span {
  width: 16px;
  border-radius: 999px 999px 4px 4px;
  background: linear-gradient(180deg, #14b8a6, #2563eb);
}

.insight-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.insight-strip span {
  padding: 8px 12px;
  border-radius: 999px;
  background: #ecfdf5;
  color: #047857;
  font-size: 13px;
  font-weight: 700;
}

.section {
  padding: 72px 0;
}

.section.alt {
  background: #f9fafb;
}

.section h2 {
  margin: 0 0 24px;
  font-size: 32px;
  color: #111827;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 30px;
}

.section-heading h2 {
  margin-bottom: 12px;
}

.section-heading p {
  margin: 0;
  color: #4b5563;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  padding: 28px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: white;
}

.icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: 12px;
  background: #eff6ff;
  color: #2563eb;
}

.icon.accent {
  background: #ecfdf5;
  color: #0f766e;
}

.icon.warm {
  background: #fffbeb;
  color: #b45309;
}

.icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.card h3 {
  margin: 0 0 12px;
  color: #111827;
}

.card p {
  margin: 0;
  color: #4b5563;
}

.cooperation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cooperation-item {
  padding: 26px;
  border-top: 3px solid #14b8a6;
  background: #f8fafc;
}

.cooperation-item:nth-child(2) {
  border-top-color: #2563eb;
}

.cooperation-item:nth-child(3) {
  border-top-color: #f59e0b;
}

.cooperation-item span {
  display: block;
  margin-bottom: 18px;
  color: #94a3b8;
  font-size: 13px;
  font-weight: 800;
}

.cooperation-item h3 {
  margin: 0 0 10px;
  color: #111827;
}

.cooperation-item p {
  margin: 0;
  color: #4b5563;
}

.contact-section {
  background: #f9fafb;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  gap: 32px;
  align-items: center;
  padding: 34px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: white;
}

.contact-card h2 {
  margin-bottom: 12px;
}

.contact-card p {
  margin: 0;
  color: #4b5563;
}

.contact-card .eyebrow {
  margin-bottom: 8px;
}

.contact-list {
  display: grid;
  gap: 10px;
  justify-items: start;
}

.contact-list a {
  color: #111827;
  font-size: 20px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.contact-list span {
  color: #64748b;
}

.footer {
  padding: 28px 0;
  background: #111827;
  color: #d1d5db;
  font-size: 14px;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.footer a {
  color: #d1d5db;
}

@media (max-width: 768px) {
  .hero {
    padding: 64px 0;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-grid,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 360px;
  }

  .nav {
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 2px;
    white-space: nowrap;
  }

  .site-header .container {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    padding: 14px 0;
  }

  .cards,
  .cooperation-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 520px) {
  .container {
    width: min(100% - 32px, 1120px);
  }

  .hero {
    padding: 56px 0;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero p {
    font-size: 17px;
  }

  .hero-visual {
    min-height: auto;
    padding: 18px;
  }

  .metric-row,
  .dashboard-body {
    grid-template-columns: 1fr;
    height: auto;
  }

  .map-panel,
  .chart-panel {
    min-height: 150px;
  }

  .contact-card {
    padding: 24px;
  }
}