:root {
  --ink: #172033;
  --muted: #5f6b7a;
  --line: #dde5ec;
  --paper: #ffffff;
  --soft: #f4f8fb;
  --blue: #2367f5;
  --teal: #14a6a6;
  --coral: #e06b4f;
  --dark: #10243f;
  --shadow: 0 18px 45px rgba(22, 45, 70, 0.12);
}

* {
  box-sizing: border-box;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a:hover {
  color: var(--blue);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  padding: 8px 12px;
}

.hero {
  position: relative;
  min-height: min(780px, calc(100vh - 132px));
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 88px clamp(20px, 6vw, 96px);
  background: #10243f;
  color: #fff;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16, 36, 63, 0.92) 0%, rgba(16, 36, 63, 0.74) 48%, rgba(16, 36, 63, 0.44) 100%);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
  filter: saturate(0.92);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 14px;
  font-weight: 800;
}

.hero .eyebrow {
  color: #7ee3df;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(34px, 5.5vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
  overflow-wrap: anywhere;
  word-break: break-all;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.2;
  letter-spacing: 0;
  overflow-wrap: anywhere;
  word-break: break-all;
}

h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.hero-copy,
.lead {
  color: rgba(255, 255, 255, 0.84);
  font-size: 19px;
  max-width: 720px;
  overflow-wrap: anywhere;
  word-break: break-all;
}

.lead {
  color: var(--muted);
}

.hero-actions,
.pricing-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 700;
}

.button.primary {
  color: #fff;
  background: var(--blue);
}

.button.secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.62);
}

.section {
  padding: 84px clamp(20px, 6vw, 96px);
}

.intro {
  background: var(--paper);
}

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

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  background: var(--soft);
}

.feature-card,
.contact-card {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.feature-card p,
.contact-card p,
.text-block p,
.policy p,
.policy li {
  color: var(--muted);
}

.feature-kicker {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--coral);
  font-weight: 800;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  align-items: center;
  gap: 44px;
}

.screenshot-frame,
.screenshot-stack img {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.check-list {
  padding-left: 20px;
}

.check-list li {
  margin: 8px 0;
}

.pricing-band {
  justify-content: space-between;
  background: #eaf6f5;
}

.pricing-band p {
  max-width: 720px;
  color: var(--muted);
}

.page {
  background: var(--paper);
}

.page-hero {
  padding: 76px clamp(20px, 6vw, 96px) 48px;
  background: var(--soft);
}

.page-hero p {
  max-width: 760px;
  color: var(--muted);
}

.service-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(300px, 1.2fr);
  gap: 40px;
  align-items: start;
}

.price {
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 36px;
  font-weight: 800;
}

.screenshot-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.text-block,
.policy {
  max-width: 960px;
}

.policy h2 {
  margin-top: 34px;
  font-size: 24px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.contact-card {
  min-height: 160px;
}

.site-footer {
  display: grid;
  grid-template-columns: 1.2fr auto;
  gap: 22px;
  padding: 34px clamp(20px, 6vw, 96px);
  color: rgba(255, 255, 255, 0.74);
  background: var(--dark);
}

.site-footer strong {
  color: #fff;
}

.site-footer p {
  margin: 4px 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer a:hover {
  color: #fff;
}

.copyright {
  grid-column: 1 / -1;
  font-size: 13px;
}

@media (max-width: 920px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .feature-grid,
  .split-section,
  .service-layout,
  .contact-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: min(640px, calc(100vh - 118px));
  }

  .hero::after {
    background: rgba(16, 36, 63, 0.78);
  }
}

@media (max-width: 560px) {
  .brand span {
    font-size: 15px;
  }

  .hero,
  .section,
  .page-hero {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 {
    font-size: 28px;
    line-height: 1.16;
  }

  h2 {
    font-size: 24px;
    line-height: 1.26;
  }

  .hero-copy {
    font-size: 16px;
    line-height: 1.8;
  }

  .hero-content {
    width: 100%;
    max-width: 320px;
  }

  .intro .section-heading,
  .intro .lead {
    max-width: 320px;
  }

  .screenshot-stack {
    grid-template-columns: 1fr;
  }
}