:root {
  color-scheme: light;
  --ink: #132033;
  --muted: #607086;
  --line: #d9e1ea;
  --soft: #eef6f4;
  --paper: #ffffff;
  --accent: #0f766e;
  --accent-strong: #0b5f62;
  --blue: #2868d8;
  --yellow: #f2b84b;
  --shadow: 0 18px 45px rgba(31, 46, 66, 0.12);
  font-family:
    Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #f7fafc;
  color: var(--ink);
  line-height: 1.7;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 64px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(217, 225, 234, 0.7);
  backdrop-filter: blur(16px);
}

.site-header.compact {
  position: sticky;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  color: #fff;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  color: #33445a;
  font-size: 15px;
}

nav a[aria-current="page"],
nav a:hover {
  color: var(--accent-strong);
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  background: #eaf4f7;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(247, 250, 252, 0.96), rgba(247, 250, 252, 0.72) 42%, rgba(247, 250, 252, 0.2) 72%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 40px));
  margin-left: clamp(20px, 7vw, 96px);
  padding-top: 64px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: 56px;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 16px;
  font-size: 40px;
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.28;
}

.hero-content p {
  max-width: 620px;
  color: #31445c;
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 16px 32px rgba(15, 118, 110, 0.22);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(19, 32, 51, 0.12);
  color: var(--ink);
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 86px 0;
}

.intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  border-bottom: 1px solid var(--line);
}

.intro > p,
.split p,
.document p {
  color: var(--muted);
  font-size: 17px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

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

.card,
.contact-card {
  min-height: 240px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.card-icon {
  display: inline-flex;
  margin-bottom: 32px;
  color: var(--accent-strong);
  font-weight: 900;
}

.card p,
.contact-card p {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

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

.feature-list div,
.timeline div {
  display: grid;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feature-list strong {
  color: var(--ink);
}

.feature-list span,
.timeline p {
  color: var(--muted);
}

.compliance {
  border-top: 1px solid var(--line);
}

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

.timeline span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: #e6f6f3;
  color: var(--accent-strong);
  font-weight: 900;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(20px, 4vw, 64px);
  background: #132033;
  color: #fff;
}

.site-footer p {
  margin: 4px 0 0;
  color: #bac8d8;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: #d8e5f2;
}

.document {
  width: min(860px, calc(100% - 40px));
  margin: 0 auto;
  padding: 78px 0 96px;
}

.document h1 {
  max-width: none;
  font-size: 52px;
}

.document section {
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 34px 0;
}

.contact-card {
  min-height: 190px;
}

.contact-card span {
  display: block;
  color: var(--accent-strong);
  font-weight: 800;
}

.contact-card strong {
  display: block;
  margin: 14px 0 10px;
  overflow-wrap: anywhere;
  font-size: 22px;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: 86vh;
  }

  .hero::after {
    background: linear-gradient(90deg, rgba(247, 250, 252, 0.98), rgba(247, 250, 252, 0.82) 62%, rgba(247, 250, 252, 0.35));
  }

  .hero-content {
    margin: 0 auto;
    padding-top: 130px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 32px;
  }

  .hero-content p,
  .intro > p,
  .split p,
  .document p {
    font-size: 17px;
  }

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

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

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

@media (max-width: 560px) {
  .cards,
  .timeline {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 35px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}