:root {
  --ink: #213047;
  --muted: #5d6673;
  --bg: #f5f7fb;
  --card: #ffffff;
  --accent: #1e3a5f;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: var(--bg); color: var(--ink); line-height: 1.6; }
a { color: var(--accent); }
.wrap { max-width: 940px; margin: 0 auto; padding: 0 18px; }
header { background: linear-gradient(135deg, #1e3a5f 0%, #2c5282 100%); color: #fff; padding: 16px 0; }
.site-jump {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid #dce4f1;
  backdrop-filter: blur(4px);
}
.site-jump .wrap {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 8px;
  padding-bottom: 8px;
}
.jump-link {
  font-size: 0.82rem;
  text-decoration: none;
  color: #1e3a5f;
  background: #e9f0ff;
  border: 1px solid #d3def5;
  border-radius: 999px;
  padding: 5px 10px;
}
.jump-link:hover { background: #dce8ff; }
.brand { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.brand a { color: #fff; text-decoration: none; font-weight: 700; }
.brand-nav { display: flex; gap: 12px; flex-wrap: wrap; }
.brand-nav a { color: #fff; text-decoration: none; opacity: 0.95; }
.brand-nav a:hover { text-decoration: underline; }
.hero { padding: 28px 0 14px; }
.hero h1 { margin: 0 0 8px; font-size: 2rem; }
.hero p { margin: 0; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 18px 0 34px; }
.card { background: var(--card); border-radius: 10px; border: 1px solid #e2e8f0; padding: 14px; box-shadow: 0 1px 4px rgba(0,0,0,.04); }
.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0 0 10px; color: var(--muted); }
.pill { display: inline-block; font-size: .78rem; background: #e8eef8; color: #27456f; border-radius: 999px; padding: 4px 8px; margin-bottom: 8px; }
article.post { background: var(--card); border: 1px solid #e2e8f0; border-radius: 10px; padding: 20px; margin: 18px 0 30px; }
article.post h1 { margin-top: 0; line-height: 1.25; }
.post-meta { color: var(--muted); font-size: .9rem; margin: -6px 0 14px; }
article.post h2 { margin-top: 20px; }
ul { padding-left: 20px; }
.cta { background: #eef3ff; border: 1px solid #d6dff4; border-radius: 8px; padding: 12px; margin-top: 20px; }
.related {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid #dce4f1;
}
.related h3 { margin: 0 0 8px; }
.related ul { margin: 0; }
.end-cta {
  margin-top: 18px;
  background: #eef3ff;
  border: 1px solid #d6dff4;
  border-radius: 10px;
  padding: 14px;
}
.end-cta h3 { margin: 0 0 6px; color: #1e3a5f; }
.end-cta p { margin: 0 0 10px; color: #425169; }
.end-cta-links { display: flex; gap: 8px; flex-wrap: wrap; }
.end-cta-links a {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 999px;
  padding: 7px 12px;
}
.cta-primary { background: #1e3a5f; color: #fff; }
.cta-secondary { background: #dfe9ff; color: #1e3a5f; border: 1px solid #c7d6f7; }
footer {
  background: #2d3748;
  color: #fff;
  text-align: center;
  padding: 24px 0 30px;
  margin-top: 24px;
}
.footer-meta { margin-top: 8px; opacity: 0.82; }
.footer-links { margin-top: 8px; }
.footer-links a { color: #fff; text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.footer-pay-btn {
  display: inline-block;
  margin-top: 10px;
  background: #00d632;
  color: #0b2a13;
  font-weight: 700;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.25);
}
@media (max-width: 640px) { .hero h1 { font-size: 1.6rem; } }