:root {
  --bg: #eef3f9;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-strong: #ffffff;
  --line: rgba(20, 53, 96, 0.12);
  --line-strong: rgba(20, 53, 96, 0.2);
  --text: #13263d;
  --muted: #6a7d93;
  --accent: #0f6fff;
  --accent-soft: rgba(15, 111, 255, 0.12);
  --shadow: 0 18px 48px rgba(18, 34, 59, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 111, 255, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(31, 172, 134, 0.14), transparent 26%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
}

.page-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, .8fr);
  gap: 18px;
  padding: 24px;
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(255,255,255,.94), rgba(247,250,255,.88));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 14px 0 12px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.04;
  font-weight: 700;
}

.hero p {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 16px;
}

.hero-meta {
  display: grid;
  gap: 14px;
}

.hero-stat {
  display: grid;
  gap: 8px;
  padding: 18px 18px 16px;
  border-radius: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.hero-stat span,
.footer {
  color: var(--muted);
}

.hero-stat strong {
  font-size: 18px;
  font-weight: 700;
}

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

.nav-card {
  padding: 18px;
  border-radius: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.card-head h2 {
  margin: 0;
  font-size: 20px;
}

.card-head span {
  color: var(--muted);
  font-size: 13px;
}

.nav-list {
  display: grid;
  gap: 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 16px 15px;
  border-radius: 18px;
  text-decoration: none;
  color: inherit;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.nav-item:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: 0 14px 34px rgba(18, 34, 59, 0.1);
}

.nav-item strong {
  display: block;
  font-size: 16px;
}

.nav-item p {
  margin: 7px 0 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 13px;
}

.nav-item span {
  flex: 0 0 auto;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.footer {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 0 4px;
  font-size: 13px;
}

@media (max-width: 860px) {
  .page-shell {
    width: min(100vw - 20px, 100%);
    padding: 12px 0 20px;
  }

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

  .footer {
    flex-direction: column;
  }
}