:root{--bg:#0b1020;--panel:#131c31;--panel2:#18233c;--line:#293a59;--fg:#f1f5ff;--muted:#a8b6cf;--accent:#72e5ff;--accent2:#a78bfa;--good:#86efac;--warn:#fcd34d;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#07101d,#0b1020 42%,#0d1425);color:var(--fg);font:400 16px/1.7 system-ui,-apple-system,"Segoe UI","Noto Sans KR",sans-serif}a{color:inherit}.wrap{width:min(1060px,calc(100% - 32px));margin:auto}.bar{position:sticky;top:0;z-index:10;background:rgba(7,16,29,.88);backdrop-filter:blur(15px);border-bottom:1px solid rgba(255,255,255,.08)}.bar .wrap{height:64px;display:flex;align-items:center;gap:18px}.brand{font-weight:900;text-decoration:none;letter-spacing:-.03em}.brand b{color:var(--accent)}nav{margin-left:auto;display:flex;gap:16px}nav a{font-size:14px;color:var(--muted);text-decoration:none}nav a:hover{color:var(--fg)}.hero,.pagehead{padding:64px 0 34px}.eyebrow{display:inline-block;padding:5px 10px;border:1px solid var(--line);border-radius:999px;color:var(--accent);font-size:13px}h1{font-size:clamp(36px,6vw,62px);line-height:1.08;letter-spacing:-.055em;margin:18px 0}.pagehead h1{font-size:clamp(32px,5vw,50px)}.lead{max-width:760px;color:var(--muted);font-size:18px}.crumb{color:var(--muted);font-size:14px}.crumb a{text-decoration:none}.section{padding:24px 0 64px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card,.calcbox,.contentbox{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:20px;box-shadow:0 20px 55px rgba(0,0,0,.22)}.card{padding:22px;text-decoration:none;transition:.18s}.card:hover{transform:translateY(-3px);border-color:#5476a7}.card strong{display:block;font-size:19px;margin-bottom:5px}.card p{margin:0;color:var(--muted);font-size:14px}.twocol{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:20px;align-items:start}.calcbox,.contentbox{padding:24px}.field{display:grid;gap:7px;margin-bottom:15px}.field label{font-size:14px;font-weight:700}.field input,.field select{width:100%;border:1px solid #334866;border-radius:11px;background:#0b1426;color:var(--fg);padding:12px 13px;font:inherit}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.btn{border:0;border-radius:11px;padding:13px 17px;background:linear-gradient(135deg,var(--accent),#95a8ff);color:#07101d;font-weight:900;font:inherit;cursor:pointer}.result{margin-top:18px;padding:18px;border:1px solid #35516d;border-radius:14px;background:#0a1528}.result b{display:block;color:var(--accent);font-size:25px;letter-spacing:-.03em}.muted{color:var(--muted)}.contentbox h2,.contentbox h3{line-height:1.35;letter-spacing:-.03em}.contentbox h2{margin-top:0}.contentbox h3{margin-top:28px}.formula{padding:14px 16px;border-radius:12px;background:#091324;border-left:3px solid var(--accent);overflow:auto}.faq details{border-top:1px solid var(--line);padding:14px 0}.faq summary{cursor:pointer;font-weight:700}.warn-inline{margin-top:14px;padding:12px 14px;border:1px solid #7a5c1c;background:rgba(252,211,77,.09);border-radius:12px;color:#f8e7a5;font-size:13.5px;line-height:1.6}.warn-inline a{color:var(--warn)}.notice{padding:13px 15px;border:1px solid #655724;background:rgba(252,211,77,.06);border-radius:12px;color:#f8e7a5;font-size:14px}.footer{border-top:1px solid rgba(255,255,255,.08);padding:30px 0 44px;color:var(--muted);font-size:13px}.footer .wrap{display:flex;flex-wrap:wrap;gap:12px 20px}.footer a{text-decoration:none}.meta{font-size:13px;color:var(--muted)}@media(max-width:760px){.grid{grid-template-columns:1fr}.twocol{grid-template-columns:1fr}.row{grid-template-columns:1fr}.hero,.pagehead{padding-top:45px}nav{gap:10px}.nav-hide{display:none}}
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