:root {
  --bg: #f7f5ef;
  --surface: #ffffff;
  --text: #222222;
  --muted: #6b7280;
  --primary: #284b63;
  --primary-2: #3c6e71;
  --border: #e5e7eb;
  --accent: #d9c7a3;
  --max: 1120px;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8f6f0 0%, #f5f6f8 100%);
  line-height: 1.65;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
.topbar {
  background: #1f2937;
  color: #fff;
  font-size: 14px;
}
.topbar .container { padding: 10px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
header.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 74px;
}
.brand {
  display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 20px; color: var(--primary);
}
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; display: grid; place-items: center; font-weight: 800;
  box-shadow: var(--shadow);
}
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { font-weight: 600; color: #374151; }
.nav-cta {
  background: var(--primary); color: #fff !important; padding: 11px 16px; border-radius: 999px;
}
.hero { padding: 64px 0 36px; }
.hero-grid {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: center;
}
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-copy { padding: 34px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px;
  border-radius: 999px; font-size: 13px; font-weight: 700; color: var(--primary);
  background: #eef5f6; border: 1px solid #d6e7e8;
}
h1 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.05; margin: 16px 0 18px; letter-spacing: -0.03em;
}
.hero p { color: var(--muted); font-size: 18px; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border-radius: 999px; padding: 13px 18px; font-weight: 700; border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: #fff; border-color: var(--border); color: #111827; }
.hero-side {
  overflow: hidden; min-height: 100%;
  background: linear-gradient(160deg, #284b63 0%, #3c6e71 60%, #d9c7a3 100%);
  color: #fff;
}
.hero-side .inner { padding: 32px; }
.hero-side h2 { margin-top: 0; font-size: 28px; }
.hero-side p { color: rgba(255,255,255,.9); }
.hero-list { padding-left: 18px; margin: 18px 0 0; }
.hero-list li { margin: 10px 0; }
.section { padding: 28px 0 10px; }
.section-head {
  display: flex; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 18px;
}
.section-head h2 { font-size: 32px; margin: 0; }
.section-head p { margin: 0; color: var(--muted); max-width: 680px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature, .article-card, .info-card { padding: 22px; }
.feature h3, .article-card h3, .info-card h3 { margin-top: 0; }
.meta { color: var(--muted); font-size: 14px; }
.article-card p, .info-card p, .feature p { color: #4b5563; }
.callout {
  margin: 34px 0; padding: 28px; border-radius: var(--radius);
  background: linear-gradient(135deg, #fff 0%, #f3f8fa 100%);
  border: 1px solid var(--border);
}
.callout h2 { margin-top: 0; }
form { display: grid; gap: 14px; }
label { font-weight: 600; font-size: 14px; }
input, textarea {
  width: 100%; border: 1px solid #d1d5db; border-radius: 12px; padding: 13px 14px; font: inherit; background: #fff;
}
textarea { min-height: 160px; resize: vertical; }
footer {
  margin-top: 48px; background: #111827; color: #e5e7eb;
}
.footer-grid {
  display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 20px; padding: 38px 0;
}
footer a { color: #d1d5db; }
.small { font-size: 14px; color: #9ca3af; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 22px; }
.article-content { padding: 28px; }
.sidebar { padding: 22px; position: sticky; top: 96px; height: fit-content; }
blockquote {
  margin: 22px 0; padding: 18px 20px; border-left: 4px solid var(--accent);
  background: #faf7f1; border-radius: 12px;
}
hr.sep { border: 0; border-top: 1px solid var(--border); margin: 30px 0; }
.notice { font-size: 14px; color: var(--muted); }
.mobile-toggle { display: none; background: none; border: 0; font-size: 24px; }
@media (max-width: 920px) {
  .hero-grid, .grid-3, .grid-2, .footer-grid, .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}
@media (max-width: 760px) {
  .nav-links { display: none; position: absolute; top: 74px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 16px; flex-direction: column; align-items: flex-start; }
  .nav-links.open { display: flex; }
  .mobile-toggle { display: inline-block; }
  h1 { font-size: 38px; }
}