:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #647188;
  --line: #dce3ec;
  --paper: #ffffff;
  --soft: #f4f7fa;
  --blue: #1f66e5;
  --green: #16856a;
  --orange: #d36a21;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  width: min(1180px, calc(100% - 48px));
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 19px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: var(--blue);
}

.brand-mark span {
  width: 9px;
  height: 9px;
  background: #fff;
  box-shadow: 6px 6px 0 #8dd8c0;
}

nav {
  display: flex;
  gap: 32px;
}

nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible {
  color: var(--blue);
}

.hero {
  width: min(1180px, calc(100% - 48px));
  min-height: 490px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
  align-items: center;
  gap: 80px;
}

.kicker,
.section-number {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(58px, 8vw, 108px);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-summary {
  max-width: 620px;
  margin: 30px 0 0;
  color: #45536a;
  font-size: 20px;
  line-height: 1.8;
}

.status-panel {
  border-top: 3px solid var(--blue);
}

.status-panel div {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.status-panel strong {
  font-size: 17px;
}

.status-panel span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.content-band,
.service-section {
  padding: 88px max(24px, calc((100% - 1180px) / 2));
}

.content-band {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 80px;
  background: var(--soft);
}

.section-heading h2 {
  margin: 0;
  font-size: 32px;
}

.section-copy {
  max-width: 710px;
}

.section-copy p {
  margin: 0 0 18px;
  color: #45536a;
  font-size: 16px;
  line-height: 1.9;
}

.service-section {
  background: var(--paper);
}

.wide-heading {
  display: grid;
  grid-template-columns: 48px 220px 1fr;
  align-items: end;
  gap: 20px;
  margin-bottom: 40px;
}

.wide-heading .section-number,
.wide-heading h2,
.wide-heading p {
  margin: 0;
}

.wide-heading > p:last-child {
  color: var(--muted);
  text-align: right;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.service-grid article {
  min-height: 250px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.service-index {
  color: var(--orange);
  font-size: 13px;
  font-weight: 800;
}

.service-grid article:nth-child(2) .service-index {
  color: var(--blue);
}

.service-grid article:nth-child(3) .service-index {
  color: var(--green);
}

.service-grid h3 {
  margin: 58px 0 14px;
  font-size: 22px;
}

.service-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.security-band {
  background: #eef7f3;
}

footer {
  width: min(1180px, calc(100% - 48px));
  min-height: 96px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 13px;
}

footer a {
  text-decoration: none;
}

footer a:hover,
footer a:focus-visible {
  color: var(--blue);
  text-decoration: underline;
}

@media (max-width: 760px) {
  .site-header {
    width: min(100% - 32px, 1180px);
    height: 68px;
  }

  nav {
    display: none;
  }

  .hero {
    width: min(100% - 32px, 1180px);
    min-height: auto;
    padding: 72px 0 56px;
    grid-template-columns: 1fr;
    gap: 56px;
  }

  h1 {
    font-size: 58px;
  }

  .hero-summary {
    margin-top: 24px;
    font-size: 17px;
  }

  .content-band,
  .service-section {
    padding: 64px 24px;
  }

  .content-band {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .wide-heading {
    grid-template-columns: 42px 1fr;
  }

  .wide-heading > p:last-child {
    grid-column: 1 / -1;
    text-align: left;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-grid article {
    min-height: 210px;
  }

  footer {
    width: min(100% - 32px, 1180px);
    padding: 24px 0;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }
}