:root {
  --bg: #f7f8fa;
  --text: #172033;
  --muted: #5f6b7a;
  --panel: #ffffff;
  --accent: #1d4f91;
  --accent-dark: #12345f;
  --border: #d9dee7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }

.site-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-weight: 700;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 24px;
}

.hero {
  padding: 88px 0;
  background: linear-gradient(135deg, #10233f, #1d4f91);
  color: white;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  line-height: 1;
  max-width: 850px;
}

.hero p {
  font-size: 1.25rem;
  max-width: 720px;
  color: #dbe6f5;
}

.button {
  display: inline-block;
  margin-top: 24px;
  padding: 12px 20px;
  background: white;
  color: var(--accent-dark);
  border-radius: 6px;
  font-weight: 700;
}

.section {
  padding: 64px 0;
}

.section h2 {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 26px;
}

.card h3 {
  margin-top: 0;
}

.contact-box {
  max-width: 720px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px;
}

.form-grid {
  display: grid;
  gap: 16px;
}

input, textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
}

textarea {
  min-height: 160px;
}

button {
  width: fit-content;
  padding: 12px 20px;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  cursor: pointer;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  color: var(--muted);
}

@media (max-width: 800px) {
  .service-grid {
    grid-template-columns: 1fr;
  }

  .site-nav {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
  }
}

.article-hero {
  padding: 56px 0 24px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
}

.article-hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.05;
  max-width: 900px;
}

.article-meta {
  color: var(--muted);
  font-weight: 600;
}

.article-excerpt {
  max-width: 760px;
  font-size: 1.2rem;
  color: var(--muted);
}

.article-banner {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-top: 32px;
}

.article-content {
  max-width: 820px;
  padding: 56px 0;
}

.article-content h2 {
  margin-top: 42px;
}

.article-content p,
.article-content li {
  font-size: 1.08rem;
}