:root{--ink:#0f1d33;--muted:#667792;--line:#d7e0ec;--paper:#edf3fa;--cream:#f7f9fc;--blue:#246bfe;--blue-dark:#164ac6;--cyan:#50d4ff;--white:#fff;--shadow:0 20px 60px rgba(15,36,68,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR","Malgun Gothic",sans-serif;color:var(--ink);background:var(--cream);line-height:1.65;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:inherit}.container{width:min(1120px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,249,252,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-inner{min-height:74px;display:flex;align-items:center;gap:28px}.brand img{height:38px;width:auto}.logo-mobile{display:none}.nav{display:flex;gap:26px;margin-left:auto}.nav a{text-decoration:none;font-size:14px;color:#40526d}.nav a:hover{color:var(--blue)}.header-note{font-size:11px;color:var(--muted);border:1px solid var(--line);padding:6px 9px;border-radius:20px;background:white}.menu-button{display:none;background:none;border:1px solid var(--line);padding:7px 10px;color:var(--ink)}
.hero{padding:78px 0 66px;background:radial-gradient(circle at 76% 18%,rgba(80,212,255,.18),transparent 34%),linear-gradient(180deg,#eef4fb 0%,#f8fafc 100%);border-bottom:1px solid var(--line)}.hero-grid{display:grid;grid-template-columns:1fr 1.04fr;gap:54px;align-items:center}.eyebrow,.section-heading>p,.subhero p{margin:0 0 14px;color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.14em}.hero h1{font-size:50px;line-height:1.2;letter-spacing:-.045em;margin:0 0 24px}.hero h1 em{font-style:normal;color:var(--blue)}.hero-lead{font-size:17px;color:#4e607a;margin:0 0 30px;max-width:650px;line-height:1.8}.external-button{display:inline-flex;align-items:center;gap:10px;padding:15px 22px;background:linear-gradient(135deg,var(--blue),#2d89ff);border:1px solid var(--blue-dark);color:white;text-decoration:none;font-weight:850;border-radius:7px;box-shadow:0 12px 28px rgba(36,107,254,.25);transition:.15s}.external-button:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(36,107,254,.32)}.external-button span{width:22px;height:22px;border-radius:50%;background:#fff;color:var(--blue);display:inline-flex;align-items:center;justify-content:center;font-size:13px}.button-note{font-size:12px;color:var(--muted);max-width:580px;margin:12px 0 4px}.legal-note{font-size:11px;color:#8895a8;margin:0}.hero-visual{position:relative}.hero-visual>img{width:100%;height:490px;object-fit:cover;border:1px solid #bfcde0;box-shadow:var(--shadow);border-radius:4px}.hero-caption{position:absolute;left:22px;right:22px;bottom:22px;background:rgba(8,22,43,.91);color:white;padding:18px 20px;border:1px solid rgba(111,211,255,.28);backdrop-filter:blur(8px)}.hero-caption span{font-size:12px;color:#a8dff5}.hero-caption ol{margin:9px 0 0;padding-left:21px;display:grid;grid-template-columns:1fr 1fr;gap:8px 24px;font-size:13px;line-height:1.45}
.signal-strip{background:white;border-bottom:1px solid var(--line)}.signal-strip .container{display:grid;grid-template-columns:repeat(3,1fr)}.signal-strip .container>div{padding:22px 26px;border-right:1px solid var(--line)}.signal-strip .container>div:first-child{border-left:1px solid var(--line)}.signal-strip strong{display:block;font-size:14px;margin-bottom:4px}.signal-strip span{display:block;font-size:12px;color:var(--muted)}
.section{padding:86px 0;border-bottom:1px solid var(--line)}.section-heading{max-width:760px;margin-bottom:38px}.section-heading h2{font-size:36px;line-height:1.26;letter-spacing:-.035em;margin:0 0 10px}.section-heading>span{font-size:12px;color:var(--muted)}.section-heading.compact{margin-bottom:25px}.variables-section{background:#f8fafc}.variables-grid{display:grid;grid-template-columns:1fr 1fr;border-top:2px solid var(--ink);border-left:1px solid var(--line)}.variables-grid article{padding:30px 30px 28px;background:white;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.variable-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.variable-top span{font-size:12px;color:var(--blue);font-weight:900;letter-spacing:.08em}.variable-top small{font-size:11px;color:var(--muted);border:1px solid var(--line);padding:4px 8px;background:#f6f9fc;border-radius:20px}.variables-grid h3{font-size:21px;line-height:1.42;letter-spacing:-.025em;margin:0 0 12px}.variables-grid p{font-size:14px;color:#53657d;margin:0 0 18px}.variable-question{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}.variable-question b{display:block;margin-top:4px;color:var(--ink);font-size:13px;font-weight:750}.variables-bridge{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:24px;padding:22px 24px;border:1px solid #c8d8eb;background:#edf6ff}.variables-bridge strong{display:block;font-size:16px}.variables-bridge p{margin:4px 0 0;font-size:13px;color:var(--muted)}.variables-bridge>span{white-space:nowrap;font-size:12px;font-weight:900;color:var(--blue);letter-spacing:.04em}
.dark-section{background:#0d1a2d;color:#f6f9ff}.section-heading.light p{color:#64d7ff}.section-heading.light h2{color:white}.checklist{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #33455e}.checklist article{padding:28px 30px;border-right:1px solid #33455e;border-bottom:1px solid #33455e}.checklist article:nth-child(2n){border-right:0}.checklist b{font-size:19px;color:#c5f0ff}.checklist p{font-size:14px;color:#b6c3d4;margin:10px 0 0}
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