:root {
  --bg: #f6f8fc;
  --surface: #ffffff;
  --surface-alt: #eef4ff;
  --text: #112033;
  --muted: #5f6b7a;
  --primary: #00236f;
  --secondary: #0f9d72;
  --border: #d9e3f1;
  --shadow: 0 18px 40px rgba(7, 24, 53, 0.08);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(15, 157, 114, 0.12), transparent 22rem),
    radial-gradient(circle at top left, rgba(0, 35, 111, 0.1), transparent 24rem),
    var(--bg);
  color: var(--text);
}

a {
  color: var(--primary);
}

.page {
  width: min(100%, 1080px);
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.hero {
  background: linear-gradient(135deg, #042760, #0f8d66);
  color: #fff;
  border-radius: 32px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 16px 0 10px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.06;
}

.hero p {
  margin: 0;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.6;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.meta-chip {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-size: 14px;
  font-weight: 700;
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 22px;
  margin-top: 22px;
}

.sidebar,
.content-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.sidebar {
  position: sticky;
  top: 20px;
  align-self: start;
  padding: 18px;
}

.sidebar h2 {
  margin: 0 0 12px;
  font-size: 15px;
}

.sidebar nav {
  display: grid;
  gap: 8px;
}

.sidebar a {
  padding: 11px 12px;
  border-radius: 14px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
}

.sidebar a:hover {
  background: var(--surface-alt);
  color: var(--primary);
}

.content-card {
  padding: 28px;
}

.content-card section + section {
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

h2 {
  margin: 0 0 10px;
  font-size: 26px;
}

h3 {
  margin: 18px 0 8px;
  font-size: 18px;
}

p,
li {
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}

ul,
ol {
  padding-left: 20px;
  margin: 12px 0 0;
}

.notice,
.warning,
.contact-box {
  border-radius: 18px;
  padding: 16px 18px;
  margin-top: 16px;
}

.notice {
  background: #eef6ff;
  border: 1px solid #d5e7ff;
}

.warning {
  background: #fff8e8;
  border: 1px solid #f3e1a9;
}

.contact-box {
  background: #eef8f4;
  border: 1px solid #cde9dd;
}

.footer {
  margin-top: 18px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.grid {
  display: grid;
  gap: 14px;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .content-card {
    padding: 22px;
  }
}