:root{--color-bg:#0f1419;--color-surface:#1a2332;--color-surface-hover:#243044;--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-text:#e6edf3;--color-text-muted:#8b949e;--color-border:#30363d;--radius:12px;--font-sans:"Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}.site-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:1rem 0;position:-webkit-sticky;position:sticky;top:0;z-index:100}.site-header .container{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between}.logo{font-size:1.25rem;font-weight:700;color:var(--color-text);text-decoration:none}.logo:hover{color:var(--color-primary)}.nav{display:flex;gap:1.5rem;flex-wrap:wrap}.nav a{color:var(--color-text-muted);text-decoration:none;font-size:.9rem}.nav a:hover{color:var(--color-primary)}.main{flex:1 1;padding:2rem 0}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:1.5rem;gap:1.5rem}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem;text-decoration:none;color:inherit;display:block;transition:background .2s,border-color .2s}.card:hover{background:var(--color-surface-hover);border-color:var(--color-primary)}.card h2{margin:0 0 .5rem;font-size:1.1rem}.card p{margin:0;font-size:.9rem;color:var(--color-text-muted)}.calc-page{max-width:560px;margin:0 auto}.calc-page h1{font-size:1.75rem;margin:0 0 .5rem}.calc-page .breadcrumb{font-size:.85rem;color:var(--color-text-muted);margin-bottom:1.5rem}.calc-page .breadcrumb a{color:var(--color-primary);text-decoration:none}.calc-page .breadcrumb a:hover{text-decoration:underline}.calc-top-ad{display:block;margin-bottom:1.5rem}.calc-form{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:2rem}.form-group{margin-bottom:1.25rem}.form-group label{display:block;font-size:.9rem;font-weight:500;margin-bottom:.5rem}.form-group input:not([type=checkbox]),.form-group select{width:100%;padding:.75rem 1rem;font-size:1rem;border:1px solid var(--color-border);border-radius:8px;background:var(--color-bg);color:var(--color-text)}.form-group input:not([type=checkbox]):focus,.form-group select:focus{outline:none;border-color:var(--color-primary)}.form-group input[type=date],.form-group 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.2s}.btn:hover{background:var(--color-primary-hover)}.result-box{margin-top:1.5rem;padding:1.25rem;background:var(--color-bg);border-radius:8px;border:1px solid var(--color-border)}.result-box h3{margin:0 0 .75rem;font-size:1rem}.result-value{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.calc-disclaimer{margin-top:1.5rem;font-size:.75rem;color:var(--color-text-muted);line-height:1.4}.coupang-ad{position:relative;overflow:hidden}.coupang-ad iframe{position:static!important;left:auto!important;right:auto!important;bottom:auto!important;top:auto!important;display:block!important;margin:0 auto!important}.ad-slot{display:flex;justify-content:center;padding:1rem 0;min-height:50px}.ad-slot-top{border-bottom:1px solid var(--color-border)}.ad-slot-bottom,.ad-slot-top{background:var(--color-surface)}.ad-slot-bottom{border-top:1px solid var(--color-border)}.ad-desktop-only,.ad-mobile-only{display:none}@media (min-width:641px){.ad-desktop-only{display:block}.ad-mobile-only{display:none}}@media (max-width:640px){.ad-desktop-only{display:none}.ad-mobile-only{display:block}}.coupang-disclosure-box{margin-top:1.5rem;padding:1.25rem 1.5rem;background:#f5f5f5;border:1px solid #64b5f6;border-radius:var(--radius);text-align:center}.coupang-disclosure-title{margin:0 0 .5rem;font-size:.95rem;font-weight:600;color:#42a5f5}.coupang-disclosure-text{margin:0;font-size:.9rem;line-height:1.5;color:#333}.goldbox-incontent{margin-top:1.5rem;display:flex;justify-content:center}.goldbox-incontent .goldbox-ad-link{display:block;border-radius:var(--radius);overflow:hidden;transition:opacity .2s}.goldbox-incontent .goldbox-ad-link:hover{opacity:.9}.goldbox-incontent-image{display:block;width:300px;height:250px;max-width:100%}@media (min-width:641px){.goldbox-incontent{display:none}}.calc-layout-with-sidebar{display:flex;gap:2rem;align-items:flex-start}.calc-layout-with-sidebar .calc-page{flex:1 1;min-width:0}.goldbox-sidebar{flex-shrink:0;position:-webkit-sticky;position:sticky;top:100px}.goldbox-ad-link{display:block;border-radius:var(--radius);overflow:hidden;transition:opacity .2s}.goldbox-ad-link:hover{opacity:.9}.goldbox-ad-image{display:block;width:320px;height:auto;max-width:100%}@media (max-width:900px){.calc-layout-with-sidebar{flex-direction:column}.goldbox-sidebar{display:none}}.footer{background:var(--color-surface);border-top:1px solid var(--color-border);padding:2rem 0;margin-top:auto}.footer~*,body>iframe[src*=coupang]{display:none!important}.footer p{margin:0;font-size:.85rem;color:var(--color-text-muted);text-align:center}.category-header{margin-bottom:2rem}.category-header h1{font-size:2rem;margin:0 0 .5rem}.category-header p{color:var(--color-text-muted);margin:0}.hero{text-align:center;padding:3rem 0;margin-bottom:2rem}.hero h1{font-size:2.5rem;margin:0 0 1rem}.hero p{color:var(--color-text-muted);font-size:1.1rem;max-width:600px;margin:0 auto}.section-title{font-size:1.25rem;margin:2rem 0 1rem;padding-bottom:.5rem}@media (max-width:640px){.site-header .container{flex-direction:column;align-items:stretch;gap:.75rem;padding:0 1rem}.nav{display:flex;gap:0;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:.25rem;margin:0 -1rem;padding-left:1rem;padding-right:1rem;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{flex-shrink:0;padding:.5rem .75rem;font-size:.875rem;min-height:44px;display:flex;align-items:center}}@media (max-width:480px){body{-webkit-text-size-adjust:100%}.container{padding:0 1rem}.main{padding:1.25rem 0}.hero{padding:2rem 0;margin-bottom:1.5rem}.hero h1{font-size:1.75rem;line-height:1.3}.hero p{font-size:.95rem;padding:0 .5rem}.section-title{font-size:1.1rem;margin:1.5rem 0 .75rem}.card-grid{grid-template-columns:1fr;gap:1rem}.card{padding:1.25rem;min-height:44px}.card h2{font-size:1rem}.card p{font-size:.85rem}.calc-page{padding:0 1rem}.calc-page h1{font-size:1.5rem}.calc-form{padding:1.25rem}.form-group input,.form-group select{padding:.875rem 1rem;font-size:16px;min-height:44px}.btn{padding:.875rem 1.25rem;min-height:44px}.result-value{font-size:1.25rem;word-break:break-all}.category-header h1{font-size:1.5rem}.footer{padding:1.5rem 0}}@supports (padding:max(0px)){.site-header{padding-left:max(0px,env(safe-area-inset-left));padding-right:max(0px,env(safe-area-inset-right))}.main .container{padding-left:max(1rem,env(safe-area-inset-left) + .5rem);padding-right:max(1rem,env(safe-area-inset-right) + .5rem)}}