:root {
  color-scheme: light;
  --bg: #f6f9fc;
  --panel: #ffffff;
  --ink: #172033;
  --muted: #5d6a7e;
  --line: #dde6f0;
  --blue: #2468d8;
  --blue-dark: #174b9d;
  --green: #16a06d;
  --soft-blue: #e8f1ff;
  --shadow: 0 18px 50px rgba(23, 32, 51, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(221, 230, 240, 0.85);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(145deg, #9ab9e8, #c4d8f4);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0;
  box-shadow: 0 10px 24px rgba(36, 104, 216, 0.18);
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-text strong {
  font-size: 18px;
  line-height: 1.25;
}

.brand-text small {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a {
  border-radius: 8px;
  padding: 8px 12px;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  min-height: 620px;
  padding: clamp(52px, 8vw, 104px) clamp(20px, 5vw, 72px);
  background:
    linear-gradient(120deg, rgba(232, 241, 255, 0.96), rgba(255, 255, 255, 0.88)),
    linear-gradient(45deg, rgba(36, 104, 216, 0.1), rgba(22, 160, 109, 0.08));
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 24px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 8px;
  padding: 0 22px;
  font-weight: 700;
}

.button.primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 12px 24px rgba(36, 104, 216, 0.22);
}

.button.primary:hover {
  background: var(--blue-dark);
}

.button.secondary {
  background: #fff;
  color: var(--blue);
  border: 1px solid var(--line);
}

.company-card {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(221, 230, 240, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.company-card div {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.company-card div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.company-card span,
.facts dt,
.contact-list span {
  color: var(--muted);
  font-size: 14px;
}

.company-card strong {
  font-size: 22px;
  line-height: 1.25;
}

.company-card .status {
  color: var(--green);
}

.section {
  padding: clamp(52px, 7vw, 92px) clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.2;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(24px, 5vw, 68px);
  align-items: start;
}

.about-layout > p {
  margin: 0;
  color: #314057;
  font-size: 18px;
}

.facts {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

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

.facts dd {
  margin: 0;
  font-weight: 700;
}

.facts a,
.contact-list a,
.site-footer a {
  color: var(--blue);
}

.services-section {
  background: #fff;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.service-grid article {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.service-grid h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.service-grid p {
  margin: 0;
  color: var(--muted);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(24px, 5vw, 42px);
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
}

.contact-panel h3 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 34px);
}

.contact-panel p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.contact-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: grid;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.contact-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-list span {
  color: rgba(255, 255, 255, 0.58);
}

.contact-list a {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}

address {
  color: #fff;
  font-style: normal;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 18px;
  padding: 26px 20px;
  border-top: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .site-header,
  .hero,
  .about-layout,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .site-header {
    display: grid;
  }

  .site-nav {
    overflow-x: auto;
  }

  .hero {
    min-height: auto;
  }

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

@media (max-width: 620px) {
  .brand-mark {
    width: 48px;
    height: 48px;
    font-size: 19px;
  }

  .brand-text strong {
    font-size: 16px;
  }

  .site-nav a {
    padding: 8px 10px;
    white-space: nowrap;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

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

  .company-card strong,
  .contact-list a {
    font-size: 18px;
  }
}