:root {
  --site-primary: #0078d4;
  --site-primary-dark: #005ea6;
  --site-dark: #003366;
  --site-bg: #f4f6f9;
  --site-card: #ffffff;
  --site-card-soft: #f8fbff;
  --site-text: #1a1a1a;
  --site-text-soft: #526174;
  --site-border: #dbe6f1;
  --site-radius: 14px;
  --site-transition: 0.3s ease;
  --site-shadow-sm: 0 8px 24px rgba(5, 31, 61, 0.06);
  --site-shadow-md: 0 16px 40px rgba(5, 31, 61, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--site-bg);
  color: var(--site-text);
  line-height: 1.6;
}

.site-article-header {
  position: relative;
  text-align: center;
  padding: 5.5rem 1rem 3rem;
  color: #fff;
}

.site-article-header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(4, 18, 37, 0.55), rgba(4, 18, 37, 0.72));
  z-index: 0;
}

.site-article-hero {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.site-article-header h1 {
  font-size: clamp(2rem, 1.6rem + 2vw, 3.1rem);
  margin-bottom: 1rem;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.site-article-header p {
  font-size: clamp(1rem, 0.96rem + 0.4vw, 1.18rem);
  color: rgba(255,255,255,0.92);
}

.site-article-main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.site-article-card {
  background: linear-gradient(180deg, #ffffff, var(--site-card-soft));
  padding: 2rem;
  border-radius: var(--site-radius);
  border: 1px solid var(--site-border);
  box-shadow: var(--site-shadow-sm);
}

.site-article-card h2 {
  color: var(--site-dark);
  margin-top: 2rem;
  font-size: 1.5rem;
}

.site-article-card p,
.site-article-card ul {
  margin: 1rem 0;
  color: var(--site-text-soft);
}

.site-article-card strong {
  color: var(--site-primary);
}

.site-footer-actions {
  text-align: center;
  margin: 2rem 0;
}

.site-pill-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--site-primary);
  color: #fff;
  padding: 0.85rem 1.45rem;
  margin: 0.5rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(0, 120, 212, 0.22);
  transition: transform var(--site-transition), box-shadow var(--site-transition), background var(--site-transition);
}

.site-pill-button:hover,
.site-pill-button:focus-visible {
  background: var(--site-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(0,0,0,0.12);
}

.site-footer {
  text-align: center;
  margin: 2rem 1rem;
  font-size: 0.875rem;
  color: #666;
  border-top: 1px solid var(--site-border);
  padding-top: 1.5rem;
}

@media (max-width: 640px) {
  .site-article-header {
    padding: 4.5rem 1rem 2.5rem;
  }

  .site-article-card {
    padding: 1.4rem;
  }

  .site-pill-button {
    width: 100%;
    margin: 0.5rem 0;
  }
}