:root{
  --ink:#0b1220; --muted:#5a6781; --line:#e6e8f0; --brand:#0ea5e9; --brand2:#6366f1; --bg:#ffffff;
  --card:#f8fafc; --accent:#10b981; --danger:#ef4444;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Pretendard,'Noto Sans CJK KR','Noto Sans JP',sans-serif;line-height:1.75}
a{color:#0b6cf0;text-decoration:none}a:hover{text-decoration:underline}
.header{position:sticky;top:0;z-index:30;background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}
.header .wrap{max-width:1200px;margin:0 auto;display:flex;gap:16px;align-items:center;justify-content:space-between;padding:14px 20px}
.brand{font-weight:900;letter-spacing:.2px}
.nav a{color:#fff;padding:8px 12px;border-radius:12px}
.nav a:hover{background:rgba(255,255,255,.16)}
.nav a.cur{background:rgba(255,255,255,.22)}
.top-visual{border-bottom:1px solid var(--line)}
.top-visual .wrap{max-width:1200px;margin:0 auto;padding:14px 20px}
.top-visual picture, .top-visual img{width:100%;height:auto;border-radius:16px;box-shadow:0 8px 30px rgba(2,10,30,.08)}
.container{max-width:1200px;margin:0 auto;padding:20px}
.hero{display:grid;grid-template-columns:1fr;gap:16px;padding:12px 0}
.hero h1{margin:6px 0;font-size:28px}
.badge{display:inline-block;background:#0b1220;color:#fff;border-radius:999px;padding:4px 10px;font-size:12px}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:12px;padding:12px 16px;font-weight:800;cursor:pointer}
.btn.primary{background:var(--brand2);color:#fff}.btn.green{background:var(--accent);color:#fff}
.btn.ghost{background:#eef2ff;color:#111}
.grid{display:grid;gap:16px;grid-template-columns:repeat(12,1fr)}
.card{grid-column:span 12;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
@media(min-width:980px){.half{grid-column:span 6}.third{grid-column:span 4}}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}
.table thead th{background:#eef2ff}
.kv{display:flex;flex-wrap:wrap;gap:8px}
.kv .tag{background:#eef2ff;border:1px solid var(--line);border-radius:12px;padding:6px 10px}
.note{color:var(--muted);font-size:14px}
.footer{border-top:1px solid var(--line);margin-top:24px;padding:18px;color:var(--muted);font-size:14px}
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;z-index:40}
.modal{background:#fff;border:1px solid var(--line);padding:20px;border-radius:18px;max-width:520px;width:92%}
.show{display:flex}
.meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
.meta .chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 10px;font-size:12px;color:#334155}
h2{margin:8px 0 6px;font-size:22px}
.lead{color:var(--muted)}
.info{background:#fff;border:1px dashed var(--line);padding:10px;border-radius:12px}
.calc input{width:100%;padding:10px;border:1px solid var(--line);border-radius:10px}
.calc .row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.small{font-size:13px;color:#64748b}
.link-list a{display:inline-block;margin-right:10px}