:root{--background:#f7f8fb;--surface:#ffffff;--surface-soft:#f1f5f9;--text:#111827;--muted:#667085;--line:#d8dee8;--primary:#2563eb;--primary-strong:#1d4ed8;--primary-soft:#eaf1ff;--success:#047857;--warning:#b45309;--danger:#b42318;--shadow:0 18px 45px rgba(15,23,42,0.08)}*{box-sizing:border-box}html{min-width:320px}body{margin:0;background:var(--background);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans KR,sans-serif;line-height:1.55}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}.site-shell{min-height:100vh;display:flex;flex-direction:column}.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.main{flex:1 1}.header{position:-webkit-sticky;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(216,222,232,.88);background:rgba(247,248,251,.9);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:0}.brand-mark{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;background:var(--primary);color:#fff;font-size:13px}.nav{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:14px;font-weight:650}.nav a:hover{color:var(--primary)}.footer{border-top:1px solid var(--line);background:#fff;padding:28px 0;color:var(--muted);font-size:14px}.footer-inner{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.section{padding:64px 0}.section.compact{padding:40px 0}.hero{padding:72px 0 48px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) 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ease}.button:hover{background:var(--primary-strong)}.button.secondary{background:#fff;color:var(--text);border-color:var(--line)}.button.secondary:hover{border-color:#a8b3c5;background:#f9fafb}.button.ghost{background:transparent;color:var(--primary)}.button:disabled{cursor:not-allowed;opacity:.55}.panel{border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.hero-panel{padding:24px}.security-list{display:grid;grid-gap:12px;gap:12px;margin:0;padding:0;list-style:none}.security-list li{display:flex;align-items:flex-start;gap:12px;padding:12px;border-radius:8px;background:var(--surface-soft);color:var(--muted)}.check{width:22px;height:22px;flex:0 0 22px;border-radius:999px;background:#dcfce7;color:var(--success);display:grid;place-items:center;font-size:13px;font-weight:900}.section-heading{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:20px}.content-page h1,.section-heading h2,.tool-layout 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