:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #eef3fb;
  --text: #1b2430;
  --muted: #5b6877;
  --primary: #1f4fa3;
  --primary-dark: #163b79;
  --border: #d6dfeb;
  --shadow: 0 12px 35px rgba(19, 42, 79, 0.08);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: linear-gradient(180deg, #f7f9fc 0%, #eef3fb 100%);
  color: var(--text);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(214,223,235,0.9);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: space-between;
}
.brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand-wrap h1 {
  font-size: 1.15rem;
  margin: 0 0 4px;
}
.brand-wrap p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.brand-badge {
  min-width: 64px;
  height: 64px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1f4fa3 0%, #4f7dd8 100%);
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow);
}
.main-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.main-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.95rem;
}
.main-nav a:hover {
  background: #dfe9f8;
}
.menu-toggle {
  display: none;
  border: 0;
  background: var(--surface-2);
  width: 46px;
  height: 46px;
  border-radius: 12px;
  font-size: 1.3rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}
.hero,
.content-section,
.link-card,
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero {
  padding: 34px;
  margin-bottom: 24px;
}
.eyebrow,
.section-kicker {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 999px;
  background: #e8f0ff;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.hero h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.25;
}
.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
  max-width: 760px;
}
.hero-actions {
  margin-top: 22px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 14px;
  font-weight: 700;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--surface-2); color: var(--primary-dark); }
.btn-secondary:hover { background: #dfe9f8; }
.btn.full { width: 100%; }

.btn-download {
  background: #e8f0ff;
  color: var(--primary-dark);
  border: 1px solid #c8d8f4;
}
.btn-download:hover {
  background: #dbe8ff;
}
.section-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.section-meta p {
  margin: 0;
  color: var(--muted);
}

.content-section {
  padding: 26px;
  margin-bottom: 24px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.section-head h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2vw, 2rem);
}

.slider-stage {
  position: relative;
  background: #f8fbff;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 360px;
}
.slide {
  display: none;
  margin: 0;
}
.slide.active {
  display: block;
}
.slide img {
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
}
.slide figcaption {
  padding: 12px 16px;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
  border-top: 1px solid var(--border);
  background: #fff;
}
.slider-controls {
  margin-top: 14px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.nav-btn {
  min-width: 96px;
  padding: 12px 16px;
  border: 0;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.nav-btn:hover { background: var(--primary-dark); }
.slider-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 90px;
  justify-content: center;
  font-weight: 700;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}
.link-card {
  padding: 26px;
}
.link-card h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}
.link-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.7;
}
.contact-card { padding: 26px; }
.contact-body p {
  margin: 0 0 10px;
  font-size: 1.05rem;
}
.contact-body a { color: var(--primary); font-weight: 700; }
.site-footer {
  padding: 28px 20px 48px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 860px) {
  .menu-toggle { display: inline-grid; place-items: center; }
  .header-inner { align-items: flex-start; }
  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    margin-top: 10px;
  }
  .main-nav.open { display: flex; }
  .header-inner { flex-wrap: wrap; }
  .brand-wrap { width: calc(100% - 62px); }
  .link-grid { grid-template-columns: 1fr; }
  .section-meta { justify-content: flex-start; }
}

@media (max-width: 640px) {
  .header-inner,
  .container { padding-left: 14px; padding-right: 14px; }
  .hero,
  .content-section,
  .link-card,
  .contact-card { padding: 18px; border-radius: 16px; }
  .brand-badge {
    min-width: 54px;
    height: 54px;
    border-radius: 14px;
    font-size: 0.92rem;
  }
  .brand-wrap h1 { font-size: 1rem; }
  .brand-wrap p { font-size: 0.83rem; }
  .slider-stage { min-height: 220px; }
  .nav-btn { min-width: 84px; }
}