:root{
  --c-bg: #f7f9fb;
  --c-sky: #2b6ca3;
  --c-sky-dark: #1c4c74;
  --c-accent: #f2a71b;
  --c-text: #1c242c;
  --c-sub: #5b6570;
  --c-line: #dde4ea;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:'Noto Sans KR',-apple-system,BlinkMacSystemFont,"Malgun Gothic",sans-serif;
  color:var(--c-text);
  background:var(--c-bg);
  line-height:1.75;
  word-break:keep-all;
}
h1,h2,h3{line-height:1.35;margin:0 0 .5em;}
a{color:inherit;}
.wrap{max-width:1040px;margin-inline:auto;padding-inline:20px;}

.gs-header{background:#fff;border-bottom:1px solid var(--c-line);}
.gs-header-in{display:flex;align-items:center;justify-content:space-between;padding-block:16px;max-width:1040px;margin-inline:auto;padding-inline:20px;}
.gs-logo{font-weight:800;font-size:1.2rem;color:var(--c-sky-dark);text-decoration:none;}
.gs-nav{display:flex;align-items:center;gap:18px;}
.gs-nav a{color:var(--c-sub);text-decoration:none;font-size:.92rem;}
.gs-nav a:hover{color:var(--c-sky-dark);}
.gs-nav-btn{background:var(--c-accent);color:#1c242c !important;padding:9px 16px;border-radius:6px;font-weight:700;}

/* Hero: wide full-width banner with side info box overlapping bottom edge */
.gs-hero{
  position:relative;
  background:linear-gradient(120deg,var(--c-sky-dark) 0%, var(--c-sky) 100%);
  color:#fff;
  padding:56px 0 90px;
  width:100%;
}
.gs-tag{
  color:#ffd98a;
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.5px;
  margin:0 0 10px;
}
.gs-hero h1{font-size:clamp(26px,4.5vw,40px);font-weight:800;color:#fff;}
.gs-lead{font-size:1rem;color:#e7f0f8;max-width:680px;margin:0;}

.gs-infobox{
  position:relative;
  max-width:640px;
  margin:-56px auto 0;
  background:#fff;
  color:var(--c-text);
  border-radius:14px;
  box-shadow:0 12px 28px rgba(20,40,60,.18);
  padding:26px 28px;
  text-align:center;
}
.gs-infobox h2{color:var(--c-sky-dark);font-size:1.15rem;margin:0 0 8px;}
.gs-infobox p{margin:0 0 16px;color:var(--c-sub);font-size:.94rem;}
.gs-info-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

.gs-main-wrap{padding-top:56px;}
main{padding-block:8px 48px;}
.blk{margin-bottom:40px;}
.blk h2{font-size:1.4rem;color:var(--c-sky-dark);border-bottom:2px solid var(--c-line);padding-bottom:10px;}
.blk p{margin:0;color:var(--c-text);}
.blk-sub{color:var(--c-sub);margin-bottom:16px !important;}

.gs-table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;border:1px solid var(--c-line);}
.gs-table th,.gs-table td{padding:12px 14px;text-align:left;font-size:.9rem;border-bottom:1px solid var(--c-line);}
.gs-table thead th{background:var(--c-sky-dark);color:#fff;font-weight:700;}
.gs-table tbody tr:last-child td{border-bottom:none;}

.gs-list{margin:0;padding-left:0;list-style:none;display:grid;gap:12px;}
.gs-list li{
  background:#fff;
  border:1px solid var(--c-line);
  border-left:4px solid var(--c-sky);
  border-radius:8px;
  padding:14px 16px;
  font-size:.94rem;
}
.gs-list li strong{color:var(--c-sky-dark);}

.gs-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.gs-gallery img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;border-radius:10px;}

.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:10px;
  padding:18px 20px;
  margin-bottom:14px;
}
.faq-item h3{font-size:1rem;margin:0 0 8px;color:var(--c-sky-dark);}
.faq-item p{margin:0;color:var(--c-sub);font-size:.94rem;}

.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.related-card{
  display:flex;align-items:center;justify-content:center;text-align:center;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:10px;
  padding:16px 12px;
  text-decoration:none;
  color:var(--c-sky-dark);
  font-weight:700;
  font-size:.9rem;
}
.related-card:hover{background:var(--c-sky-dark);color:#fff;}

.gs-cta{background:var(--c-sky-dark);color:#fff;padding-block:44px;text-align:center;}
.gs-cta-in{max-width:600px;margin-inline:auto;}
.gs-cta h2{color:#fff;}
.gs-cta p{color:#dceaf5;margin-bottom:22px;}
.gs-cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.btn{display:inline-block;padding:14px 28px;border-radius:6px;font-weight:700;text-decoration:none;font-size:.95rem;}
.btn-primary{background:var(--c-accent);color:#1c242c;}
.btn-secondary{background:transparent;color:var(--c-sky-dark);border:2px solid var(--c-sky-dark);}
.gs-cta .btn-secondary{color:#fff;border-color:#fff;}

.last-mod{text-align:center;font-size:.78rem;color:var(--c-sub);margin:16px 0 0;}

footer{
  background:#fff;
  border-top:1px solid var(--c-line);
  color:var(--c-sub);
  font-size:.82rem;
  padding:14px 20px;
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 20px;
}
footer a{color:var(--c-sky-dark);}

@media (max-width:768px){
  .gs-gallery{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .gs-infobox{margin:-40px 20px 0;}
}
@media (max-width:640px){
  .gs-header-in{flex-direction:column;gap:10px;align-items:flex-start;}
  .gs-cta-btns, .gs-info-btns{flex-direction:column;}
  .btn{text-align:center;}
  .gs-hero{padding:44px 0 76px;}
}