:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #1f4b99;
  --accent-soft: #eaf1ff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}
.brand { font-size: 24px; font-weight: 700; color: var(--text); }
nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--muted); font-size: 15px; font-weight: 600; }
.hero { padding: 48px 0 28px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; }
.hero-main, .hero-side, .card, .sidebar-box, .page-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.hero-main, .hero-side, .card, .sidebar-box, .page-box { padding: 24px; }
.tag {
  display: inline-block;
  padding: 6px 10px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  margin-bottom: 14px;
}
h1 { font-size: 36px; line-height: 1.15; margin: 0 0 14px; }
h2 { font-size: 28px; margin-top: 0; }
h3 { margin: 0 0 10px; font-size: 22px; }
p.lead, .hero-main p { margin: 0; color: var(--muted); font-size: 17px; max-width: 720px; }
.mini-list { margin: 0; padding: 0; list-style: none; }
.mini-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
.mini-list li:last-child { border-bottom: none; padding-bottom: 0; }
.mini-list a { display: block; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.mini-list span, .meta { color: var(--muted); font-size: 14px; }
main { padding-bottom: 40px; }
.content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
.cards, .sidebar { display: grid; gap: 18px; }
.section-title { margin: 0 0 18px; font-size: 24px; }
.card p, .sidebar-box p, .sidebar-box li, .page-box p, .page-box li { color: var(--muted); }
.page-hero { padding: 40px 0 24px; }
.page-box ul { padding-left: 20px; }
.article-body p { margin: 0 0 16px; }
.article-body h2 { font-size: 24px; margin: 28px 0 12px; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}
footer {
  border-top: 1px solid var(--line);
  background: #fff;
  margin-top: 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 24px;
  padding: 28px 0;
}
.footer-grid h4 { margin: 0 0 10px; font-size: 16px; }
.footer-grid p, .footer-grid a, .footer-note { color: var(--muted); font-size: 14px; }
.footer-note { border-top: 1px solid var(--line); padding: 16px 0 24px; }
.button {
  display: inline-block;
  padding: 11px 16px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}
.button:hover { text-decoration: none; opacity: 0.95; }
@media (max-width: 900px) {
  .hero-grid, .content-grid, .footer-grid, .info-grid { grid-template-columns: 1fr; }
  h1 { font-size: 28px; }
  .topbar { align-items: flex-start; padding: 14px 0; flex-direction: column; }
}