:root {
  --color-primary: #2d7a4a;
  --color-primary-dark: #1f5a35;
  --color-accent: #f5a623;
  --color-text: #1f2933;
  --color-text-muted: #5a6b7a;
  --color-bg: #ffffff;
  --color-bg-soft: #f7f5f0;
  --color-border: #e3e8ee;
  --max-width: 1080px;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  --font-sans: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}
.brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}
.brand:hover { text-decoration: none; }
.nav { display: flex; gap: 28px; }
.nav a {
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
}
.nav a:hover { color: var(--color-primary); text-decoration: none; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #e8f5ec 0%, #fef5e6 100%);
  padding: 80px 0;
  text-align: center;
}
.hero h1 {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
  color: var(--color-primary-dark);
}
.hero p {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}
.btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background 0.2s;
}
.btn:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }

/* Section */
.section { padding: 72px 0; }
.section-soft { background: var(--color-bg-soft); }
.section h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
  text-align: center;
}
.section-lead {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 48px;
  font-size: 16px;
}

/* Card grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-primary-dark);
}
.card p { color: var(--color-text-muted); font-size: 15px; }
.card .card-meta {
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* Product / partner banner */
.partner-banner {
  background: #fff;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 14px;
  margin: 32px 0;
}
.partner-banner strong { color: var(--color-text); }

/* Article */
.article-page { padding: 64px 0; }
.article {
  max-width: 720px;
  margin: 0 auto;
}
.article header { margin-bottom: 40px; border-bottom: 1px solid var(--color-border); padding-bottom: 24px; }
.article h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.3;
  margin-bottom: 12px;
}
.article .meta {
  font-size: 14px;
  color: var(--color-text-muted);
}
.article h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 40px 0 16px;
  letter-spacing: -0.3px;
}
.article h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 12px;
}
.article p { margin-bottom: 18px; }
.article ul, .article ol { margin: 0 0 18px 24px; }
.article li { margin-bottom: 8px; }
.article blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-soft);
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--color-text-muted);
  border-radius: 4px;
}

/* Contact */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}
.info-table th, .info-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: 15px;
}
.info-table th {
  width: 160px;
  color: var(--color-text-muted);
  font-weight: 600;
  background: var(--color-bg-soft);
}

/* Footer */
.site-footer {
  background: #1f2933;
  color: #aab4c0;
  padding: 48px 0 32px;
  font-size: 14px;
  margin-top: 64px;
}
.site-footer .container { display: grid; gap: 24px; }
.site-footer h4 { color: #fff; font-size: 14px; margin-bottom: 12px; font-weight: 700; }
.site-footer .disclosure {
  background: rgba(255,255,255,0.04);
  padding: 16px 20px;
  border-radius: var(--radius);
  border-left: 3px solid var(--color-accent);
  font-size: 13px;
  line-height: 1.6;
}
.site-footer .copyright {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
  text-align: center;
  color: #6b7785;
}

/* Mobile */
@media (max-width: 640px) {
  .site-header .container { height: 56px; }
  .nav { gap: 16px; }
  .nav a { font-size: 14px; }
  .hero { padding: 56px 0; }
  .hero h1 { font-size: 28px; }
  .hero p { font-size: 16px; }
  .section { padding: 48px 0; }
  .section h2 { font-size: 22px; }
  .article h1 { font-size: 24px; }
  .article h2 { font-size: 20px; }
}