:root{
  --bg:#f7f9ff;
  --surface:#ffffff;
  --ink:#0f1a2e;
  --ink-soft:#445072;
  --muted:#6b7793;
  --primary:#2b5bff;
  --primary-700:#1d44d6;
  --accent:#ff7a3c;
  --accent-2:#ffb648;
  --line:#e6ecf7;
  --shadow: 0 10px 30px rgba(43,91,255,.10);
  --radius:14px;
  --maxw:1140px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Pretendard","Noto Sans KR","Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:12px}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;margin:0 0 14px;color:var(--ink);font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(28px,4.2vw,46px)}
h2{font-size:clamp(22px,2.8vw,32px)}
h3{font-size:18px}
p{margin:0 0 12px;color:var(--ink-soft)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.center{text-align:center}
.muted{color:var(--muted)}
.mt32{margin-top:32px}
.micro{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}

/* HEADER */
.site-header{position:sticky;top:0;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}
.brand img{border-radius:8px}
.site-header nav a{margin-left:18px;color:var(--ink-soft);font-weight:600}
.site-header nav a.active,.site-header nav a:hover{color:var(--primary)}

/* HERO */
.hero{padding:60px 0 40px;background:
  radial-gradient(1200px 400px at 80% -50px, rgba(43,91,255,.12), transparent 60%),
  linear-gradient(180deg,#eef3ff,transparent);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
.badge{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--primary);font-weight:700;padding:6px 12px;border-radius:999px;font-size:13px;box-shadow:var(--shadow)}
.accent{color:var(--primary)}
.lead{font-size:17px;color:var(--ink-soft);margin:14px 0 22px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.hero-bullets{list-style:none;padding:0;margin:8px 0 0;display:flex;gap:18px;flex-wrap:wrap;color:var(--ink-soft);font-weight:600}
.hero-visual img{box-shadow:var(--shadow);border-radius:18px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;font-weight:700;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:transform .08s ease, box-shadow .2s ease, background .2s ease;font-size:15px}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--primary),#5a82ff);color:#fff;box-shadow:0 8px 20px rgba(43,91,255,.35)}
.btn-primary:hover{background:linear-gradient(135deg,var(--primary-700),var(--primary))}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.lg{padding:16px 28px;font-size:16px}

/* TRUST STRIP */
.strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:22px 20px}
.strip-grid strong{display:block;font-size:22px;color:var(--primary);font-weight:800}
.strip-grid span{color:var(--muted);font-size:13px}

/* SECTIONS */
.section{padding:70px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative}
.step-num{display:inline-block;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:800;border-radius:10px;padding:6px 12px;font-size:13px;margin-bottom:12px}
.step h3{margin-bottom:6px}

/* CARDS */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);transition:transform .15s ease, box-shadow .25s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(43,91,255,.15)}
.card img{aspect-ratio:16/10;object-fit:cover;margin-bottom:14px}
.card h3{margin-bottom:6px;color:var(--ink)}
.card p{font-size:14px}

/* TABLE */
.exclusive{display:inline-block;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:12px;font-weight:800;padding:4px 10px;border-radius:999px;margin-left:8px;vertical-align:middle}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-top:22px}
.cmp{width:100%;border-collapse:collapse;min-width:640px}
.cmp th,.cmp td{padding:14px 16px;text-align:center;border-bottom:1px solid var(--line);font-size:14px}
.cmp thead th{background:#f3f6ff;color:var(--ink);font-weight:700}
.cmp tr.highlight td{background:#fff7ef;color:var(--ink);font-weight:600}
.cmp tr:last-child td{border-bottom:0}

/* CALCULATOR */
.calc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-top:22px}
.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.calc label{display:flex;flex-direction:column;font-size:13px;font-weight:700;color:var(--ink-soft);gap:6px}
.calc input, .calc select{padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;background:#fafbff;color:var(--ink)}
.calc input:focus, .calc select:focus{outline:2px solid var(--primary);border-color:transparent;background:#fff}
.calc-result{margin-top:18px;padding:16px 18px;background:linear-gradient(135deg,#eef3ff,#fff);border:1px dashed var(--primary);border-radius:12px;font-weight:700;color:var(--ink)}

/* FAQ */
.faq{margin-top:22px;display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--primary);font-weight:700}
.faq details[open] summary::after{content:"−"}
.faq p{margin-top:8px;color:var(--ink-soft)}

/* FINAL CTA */
.cta-final{padding:70px 20px;background:linear-gradient(135deg,#1d44d6,#2b5bff 60%,#5a82ff);color:#fff;text-align:center}
.cta-final h2{color:#fff}
.cta-final p{color:#dbe5ff;margin-bottom:22px}
.cta-final .btn-primary{background:#fff;color:var(--primary)}
.cta-final .btn-primary:hover{background:#f0f4ff;color:var(--primary-700)}

/* FOOTER */
.site-footer{background:#0f1a2e;color:#9aa6c2;padding:28px 0;margin-top:0}
.foot{display:flex;flex-direction:column;gap:6px;text-align:center;font-size:13px}
.foot a{color:#cfd8ff}

/* RESPONSIVE */
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .strip-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .steps{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,1fr)}
  .calc-grid{grid-template-columns:repeat(2,1fr)}
  .hero{padding:40px 0 20px}
}
@media (max-width: 540px){
  .cards{grid-template-columns:1fr}
  .site-header nav a{margin-left:12px;font-size:14px}
}