:root {
  --ink: #172033;
  --muted: #607086;
  --line: #dbe3ee;
  --brand: #1266f1;
  --brand-dark: #103d78;
  --accent: #18a77d;
  --soft: #f5f8fb;
  --white: #fff;
  --shadow: 0 18px 45px rgba(23, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
  background: var(--white);
}

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

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

.topbar,
.nav-wrap,
.hero,
.section,
.page-hero,
.footer {
  padding-left: max(24px, calc((100vw - 1180px) / 2));
  padding-right: max(24px, calc((100vw - 1180px) / 2));
}

.topbar {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  padding-top: 8px;
  padding-bottom: 8px;
  color: #eaf2ff;
  background: var(--brand-dark);
  font-size: 14px;
}

.topbar a {
  color: #fff;
  font-weight: 800;
}

.nav-wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 12px;
  padding-bottom: 12px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand img {
  width: 154px;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links a {
  padding: 10px 12px;
  border-radius: 6px;
  color: #334155;
  font-size: 15px;
  font-weight: 800;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--brand);
  background: #eef5ff;
}

.nav-links .nav-cta {
  color: #fff;
  background: var(--brand);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 48px;
  align-items: center;
  padding-top: 86px;
  padding-bottom: 72px;
  background:
    linear-gradient(135deg, rgba(18, 102, 241, 0.1), rgba(24, 167, 125, 0.08)),
    linear-gradient(180deg, #fff, #f7fbff);
}

.hero h1,
.page-hero h1 {
  margin: 0;
  max-width: 800px;
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.12;
  letter-spacing: 0;
}

.lead {
  max-width: 730px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 6px;
  font-weight: 900;
}

.btn.primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 10px 24px rgba(18, 102, 241, 0.24);
}

.btn.secondary {
  color: var(--brand-dark);
  background: #fff;
  border: 1px solid var(--line);
}

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

.metric,
.service-card,
.info-card,
.feature-list div,
.scenario-grid div,
.process-step,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.metric {
  padding: 24px;
  box-shadow: var(--shadow);
}

.metric strong {
  display: block;
  color: var(--brand-dark);
  font-size: 26px;
  line-height: 1.1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.section {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 21px;
  line-height: 1.3;
  letter-spacing: 0;
}

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

.card-grid {
  display: grid;
  gap: 20px;
}

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

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

.service-card,
.info-card {
  min-height: 100%;
  padding: 26px;
}

.service-card p,
.info-card p {
  margin: 12px 0 0;
}

.service-card a {
  display: inline-block;
  margin-top: 18px;
  color: var(--brand);
  font-weight: 900;
}

.icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: #fff;
  background: var(--brand-dark);
  border-radius: 6px;
  font-weight: 900;
}

.band {
  background: var(--soft);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 48px;
  align-items: start;
}

.feature-list {
  display: grid;
  gap: 14px;
}

.feature-list div,
.scenario-grid div,
.process-step {
  padding: 20px;
}

.feature-list strong,
.process-step strong {
  display: block;
  margin-bottom: 4px;
}

.feature-list span,
.process-step span {
  color: var(--muted);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  font-weight: 900;
}

.cta-section {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: center;
  margin: 0 max(24px, calc((100vw - 1180px) / 2)) 72px;
  padding: 34px;
  color: #fff;
  background: linear-gradient(135deg, var(--brand-dark), #0b6b58);
  border-radius: 8px;
}

.cta-section h2,
.cta-section p {
  color: #fff;
}

.page-hero {
  padding-top: 72px;
  padding-bottom: 72px;
  background: linear-gradient(135deg, #f8fbff, #eef7f3);
  border-bottom: 1px solid var(--line);
}

.content-list {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.content-list li {
  color: var(--muted);
}

.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
}

.contact-card {
  padding: 28px;
}

.contact-card strong {
  display: block;
  margin-top: 12px;
  color: var(--ink);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
  padding-bottom: 28px;
  color: #dce8f7;
  background: #111827;
}

.footer div {
  display: grid;
  gap: 4px;
}

.footer a {
  color: #fff;
  font-weight: 900;
}

@media (max-width: 900px) {
  .topbar,
  .nav-wrap,
  .footer,
  .cta-section {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar {
    gap: 6px;
  }

  .nav-links {
    justify-content: flex-start;
  }

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

  .card-grid.three,
  .card-grid.two,
  .scenario-grid,
  .process {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .topbar,
  .nav-wrap,
  .hero,
  .section,
  .page-hero,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .nav-links a {
    padding: 8px 9px;
    font-size: 14px;
  }

  .cta-section {
    margin-left: 18px;
    margin-right: 18px;
    padding: 24px;
  }
}