* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Noto Sans KR', sans-serif;
  color: #222;
  line-height: 1.7;
}

a { text-decoration: none; color: inherit; }

/* 헤더 */
.site-header {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid #e8e8e8;
  z-index: 100;
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 18px;
  font-weight: 700;
  color: #1a3c6e;
}
nav { display: flex; align-items: center; gap: 28px; }
nav a { font-size: 14px; color: #555; }
nav a:hover { color: #1a3c6e; }
.btn-nav-cta {
  background: #1a3c6e;
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
}
.btn-nav-cta:hover { background: #142f58; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #1a3c6e 0%, #2a5298 100%);
  color: #fff;
  padding: 100px 24px;
  text-align: center;
}
.hero-inner { max-width: 700px; margin: 0 auto; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  padding: 6px 18px;
  font-size: 13px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  opacity: 0.85;
  margin-bottom: 36px;
  line-height: 1.8;
}
.btn-cta {
  display: inline-block;
  background: #fff;
  color: #1a3c6e;
  font-weight: 700;
  font-size: 16px;
  padding: 16px 36px;
  border-radius: 8px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* 공통 섹션 */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  color: #1a3c6e;
  text-align: center;
  margin-bottom: 10px;
}
.section-sub {
  text-align: center;
  color: #777;
  font-size: 15px;
  margin-bottom: 48px;
}

/* 서비스 */
.services { padding: 80px 0; background: #f7f9fc; }
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.service-card {
  background: #fff;
  border-radius: 14px;
  padding: 36px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.service-icon { font-size: 36px; margin-bottom: 16px; }
.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: #1a3c6e;
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: #666;
  margin-bottom: 16px;
}
.service-card ul {
  list-style: none;
  margin-bottom: 24px;
}
.service-card ul li {
  font-size: 14px;
  color: #444;
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.service-card ul li::before {
  content: '·';
  position: absolute;
  left: 4px;
  color: #1a3c6e;
}
.btn-service {
  display: inline-block;
  background: #1a3c6e;
  color: #fff;
  padding: 10px 22px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 600;
}
.btn-service:hover { background: #142f58; }

/* 의뢰처 */
.clients { padding: 70px 0; background: #fff; }
.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.client-item {
  text-align: center;
  padding: 28px 16px;
  border: 1px solid #e8eef6;
  border-radius: 12px;
  font-size: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.client-item span {
  font-size: 14px;
  color: #555;
  line-height: 1.5;
}

/* 소개 */
.about { padding: 80px 0; background: #f7f9fc; }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.about-desc {
  font-size: 15px;
  color: #444;
  margin: 16px 0 24px;
  line-height: 1.9;
}
.about-badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge-item {
  background: #e8eef6;
  color: #1a3c6e;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}
.strengths { display: flex; flex-direction: column; gap: 20px; }
.strength-item {
  background: #fff;
  border-left: 4px solid #1a3c6e;
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
}
.strength-item strong {
  display: block;
  font-size: 15px;
  color: #1a3c6e;
  margin-bottom: 6px;
}
.strength-item p { font-size: 14px; color: #666; }

/* FAQ */
.faq { padding: 80px 0; background: #fff; }
.faq-list { margin-top: 40px; max-width: 760px; margin-left: auto; margin-right: auto; }
.faq-item {
  border-bottom: 1px solid #eee;
  padding: 4px 0;
}
.faq-item summary {
  padding: 18px 8px;
  font-size: 15px;
  font-weight: 600;
  color: #222;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::after {
  content: '+';
  font-size: 20px;
  color: #1a3c6e;
  font-weight: 400;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
  padding: 0 8px 18px;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}

/* CTA 섹션 */
.cta-section {
  background: linear-gradient(135deg, #1a3c6e 0%, #2a5298 100%);
  color: #fff;
  padding: 80px 24px;
}
.cta-section h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta-section p { font-size: 15px; opacity: 0.85; margin-bottom: 32px; }
.cta-section .btn-cta { color: #1a3c6e; }

/* 푸터 */
.site-footer { background: #111827; color: #ccc; padding: 48px 24px 24px; }
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
}
.footer-info strong {
  display: block;
  font-size: 16px;
  color: #fff;
  margin-bottom: 12px;
}
.footer-info p { font-size: 14px; margin-bottom: 6px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: #aaa; }
.footer-links a:hover { color: #fff; }
.footer-copy {
  max-width: 1100px;
  margin: 0 auto;
  font-size: 12px;
  color: #666;
  border-top: 1px solid #333;
  padding-top: 20px;
}

/* 반응형 */
@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .service-grid { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; gap: 32px; }
  nav a:not(.btn-nav-cta) { display: none; }
  .footer-inner { flex-direction: column; gap: 24px; }
}