:root{
  --bg:#0b0f14;
  --text:#0b1220;
  --muted:#6b7280;
  --white:#fff;
  --blue:#1673c7;
  --blue2:#0f5fa8;
  --card:#ffffff;
  --border:#e5e7eb;
}

*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,"Noto Sans KR",sans-serif;color:var(--text);background:#fff}
a{text-decoration:none;color:inherit}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* Header */
.header{position:sticky;top:0;z-index:50;background:rgba(10,10,10,.75);backdrop-filter: blur(8px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;flex-direction:column;gap:2px;color:#fff}
.brand-title{font-weight:800;letter-spacing:-.2px}
.brand-sub{font-size:12px;opacity:.75;letter-spacing:1.5px}
.nav{display:flex;gap:18px;flex-wrap:wrap;justify-content:flex-end}
.nav-item{color:#e5e7eb;font-weight:600;font-size:15px;padding:8px 10px;border-radius:8px}
.nav-item:hover{background:rgba(255,255,255,.08)}
.nav-item.active{background:rgba(255,255,255,.12)}

/* Hero */
.hero{position:relative;min-height:320px;background-size:cover;background-position:center}
.hero-overlay{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.hero-inner{position:relative;padding:70px 20px 52px 20px;color:#fff;text-align:center}
.hero-kicker{font-size:12px;letter-spacing:3px;opacity:.85;margin-bottom:12px}
.hero-title{margin:0;font-size:64px;letter-spacing:-1px}
.hero-tagline{margin:18px auto 0;max-width:900px;font-size:22px;line-height:1.6;opacity:.92}

/* Sub tabs */
.subtabs{background:var(--blue);position:relative;z-index:10}
.subtabs-inner{display:flex;gap:18px;align-items:center;overflow:auto;padding:12px 20px}
.subtab{color:#eaf3ff;font-weight:700;padding:10px 14px;border-radius:10px;white-space:nowrap}
.subtab:hover{background:rgba(255,255,255,.15)}
.subtab.active{background:#0b3f73}

/* Section */
.section{padding:70px 0}
.section-title{text-align:center;font-size:44px;margin:0 0 26px;letter-spacing:-.8px}

/* Feature list (01~) */
.feature-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.feature-item{display:flex;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.feature-no{min-width:70px;text-align:center;background:#0f2b4a;color:#fff;font-weight:900;padding:14px 0;font-size:20px}
.feature-text{padding:14px 18px;font-size:18px}

/* Prose */
.prose{max-width:760px;margin:34px auto 0;color:#111827;line-height:1.8}
.prose h2{margin-top:34px}

/* Quickmenu */
.quickmenu{position:fixed;right:20px;top:180px;z-index:60;display:flex;flex-direction:column;gap:10px}
.qm-item{width:86px;background:#2f7ad6;color:#fff;border:none;border-radius:18px;padding:12px 10px;display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer}
.qm-item:hover{filter:brightness(.95)}
.qm-badge{width:36px;height:36px;border-radius:12px;background:#fff;color:#2f7ad6;display:flex;align-items:center;justify-content:center;font-weight:900}
.qm-icon{font-weight:900}
.qm-text{font-size:12px;font-weight:800}

/* Footer */
.footer{background:#0b0f14;color:#e5e7eb;padding:30px 0;margin-top:80px}
.footer-title{font-weight:900}
.footer-meta{margin-top:8px;color:#cbd5e1;font-size:14px}



@media (max-width: 768px){
  .hero-title{font-size:44px}
  .hero-tagline{font-size:18px}
  .quickmenu{right:10px;top:140px}
  .qm-item{width:76px;border-radius:16px}


/* Simple cards for home */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:900px;margin:0 auto}
.card{border:1px solid var(--border);border-radius:12px;padding:16px;background:#fff}
.card:hover{border-color:#cbd5e1;box-shadow:0 4px 18px rgba(0,0,0,.06)}
.card-title{font-weight:900;font-size:18px}
.card-desc{margin-top:6px;color:var(--muted);font-size:13px}
@media (max-width: 900px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width: 640px){.grid{grid-template-columns:1fr;}}
}