:root{--bg:#f2f4f6;--surface:#fff;--surface-2:#f2f4f6;--surface-hover:#f9fafb;--text:#191f28;--text-2:#4e5968;--text-3:#8b95a1;--border:#e5e8eb;--accent:#1c3fe0;--accent-strong:#1530b8;--accent-soft:#ebf0ff;--on-accent:#fff;--warn:#c2410c;--warn-soft:#fff4e6;--highlight:#ffe27a;--highlight-soft:#fff8db;--radius:20px;--radius-sm:14px;--shadow:none;--font:"Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;color-scheme:light}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);word-break:keep-all;overflow-wrap:anywhere;margin:0;font-size:16px;line-height:1.65}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{letter-spacing:-.02em;line-height:1.3}.container{width:100%;max-width:760px;margin:0 auto;padding:0 16px}.site-header{backdrop-filter:saturate(180%)blur(12px);border-bottom:1px solid var(--border);z-index:10;background:#ffffffeb;position:sticky;top:0}.site-header .container{justify-content:space-between;align-items:center;height:56px;display:flex}.logo{color:var(--text);letter-spacing:-.03em;align-items:center;gap:8px;font-size:18px;font-weight:800;display:inline-flex}.logo svg{flex:none;width:28px;height:28px}.logo span{color:var(--accent)}.logo:hover{text-decoration:none}.header-nav{gap:16px;display:flex}.header-link{color:var(--text-2);font-size:14px}.site-footer{border-top:1px solid var(--border);color:var(--text-3);margin-top:64px;padding:32px 0 48px;font-size:13px}.site-footer nav{flex-wrap:wrap;gap:4px 16px;margin-bottom:12px;display:flex}.site-footer a{color:var(--text-2)}main{padding-top:24px}.breadcrumb{color:var(--text-3);margin-bottom:8px;font-size:13px}.breadcrumb a{color:var(--text-3)}.page-title{letter-spacing:-.03em;margin:0 0 8px;font-size:28px;font-weight:800}.lead{color:var(--text-2);margin:0 0 20px}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card+.card{margin-top:12px}.form-grid{gap:16px;display:grid}.field label,.field .label{color:var(--text-2);margin-bottom:6px;font-size:14px;font-weight:600;display:block}.input-wrap{align-items:center;display:flex;position:relative}.input-wrap .unit{color:var(--text-3);pointer-events:none;font-size:15px;position:absolute;right:14px}input[type=text],input[type=number],input[type=date],select{width:100%;height:54px;font:inherit;color:var(--text);background:var(--surface-2);border-radius:var(--radius-sm);appearance:none;border:1.5px solid #0000;outline:none;padding:0 16px;font-size:17px;font-weight:600;transition:border-color .15s,background .15s}.input-wrap input{padding-right:48px}input:focus,select:focus{border-color:var(--accent);background:var(--surface)}select{background-image:linear-gradient(45deg, transparent 50%, var(--text-3) 50%), linear-gradient(135deg, var(--text-3) 50%, transparent 50%);background-position:calc(100% - 20px) 24px,calc(100% - 15px) 24px;background-repeat:no-repeat;background-size:5px 5px}.hint{color:var(--text-3);min-height:1em;margin-top:4px;font-size:13px}.row-2{grid-template-columns:1fr 1fr;gap:12px;display:grid}@media (width<=480px){.row-2{grid-template-columns:1fr}}.segmented{background:var(--surface-2);border-radius:var(--radius-sm);gap:4px;padding:4px;display:flex}.segmented label{flex:1;margin:0}.segmented input{opacity:0;pointer-events:none;position:absolute}.segmented span{text-align:center;color:var(--text-2);cursor:pointer;border-radius:8px;padding:9px 4px;font-size:14px;font-weight:600;transition:background .15s,color .15s;display:block}.segmented input:checked+span{background:var(--surface);color:var(--text);box-shadow:0 1px 3px #0000001f}.segmented input:focus-visible+span{outline:2px solid var(--accent)}.check{color:var(--text-2);cursor:pointer;align-items:center;gap:8px;font-size:15px;display:flex}.check input{width:18px;height:18px;accent-color:var(--accent)}.result{margin-top:12px}.result-head{text-align:center;padding:8px 0 16px}.result-label{color:var(--text-2);font-size:14px;font-weight:600}.result-value{letter-spacing:-.03em;color:var(--accent);font-variant-numeric:tabular-nums;font-size:40px;font-weight:800;line-height:1.25}.result-sub{color:var(--text-3);font-size:14px}.result-table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:15px}.result-table th,.result-table td{border-top:1px solid var(--border);padding:10px 0}.result-table th{text-align:left;color:var(--text-2);font-weight:500}.result-table td{text-align:right;font-weight:600}.result-table tr.total th,.result-table tr.total td{color:var(--text);font-weight:800}.result-empty{text-align:center;color:var(--text-3);padding:24px 0}.badge{background:var(--accent-soft);color:var(--accent-strong);border-radius:999px;padding:2px 8px;font-size:12px;font-weight:700;display:inline-block}.badge.warn{background:var(--warn-soft);color:var(--warn)}.notice{border-radius:var(--radius-sm);background:var(--warn-soft);color:var(--text);margin-top:12px;padding:12px 14px;font-size:14px}.notice[hidden]{display:none}.actions{gap:8px;margin-top:16px;display:flex}.btn{height:56px;font:inherit;cursor:pointer;background:var(--surface-2);color:var(--text-2);border:0;border-radius:16px;flex:1;font-size:17px;font-weight:700;transition:background .15s,transform .1s}.btn.primary{background:var(--accent);color:var(--on-accent)}.btn:hover{background:var(--border)}.btn.primary:hover{background:var(--accent-strong)}.btn:active{transform:scale(.98)}.toast{background:var(--text);color:var(--bg);opacity:0;pointer-events:none;z-index:50;border-radius:999px;padding:10px 18px;font-size:14px;transition:opacity .2s,transform .2s;position:fixed;bottom:32px;left:50%;transform:translate(-50%)translateY(20px)}.toast.show{opacity:1;transform:translate(-50%)translateY(0)}.schedule{border:1px solid var(--border);border-radius:var(--radius-sm);max-height:420px;margin-top:8px;overflow:auto}.schedule table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:14px}.schedule th,.schedule td{text-align:right;white-space:nowrap;border-bottom:1px solid var(--border);padding:8px 10px}.schedule th:first-child,.schedule td:first-child{text-align:center}.schedule thead th{background:var(--surface-2);color:var(--text-2);font-weight:600;position:sticky;top:0}.content{background:var(--surface);border-radius:var(--radius);margin-top:24px;padding:8px 24px 24px}.content h2{margin:36px 0 12px;font-size:21px;font-weight:800}.content h3{margin:24px 0 8px;font-size:17px}.content p,.content li{color:var(--text-2)}.content ul,.content ol{padding-left:20px}.content table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;margin:12px 0;font-size:14px}.content th,.content td{border:1px solid var(--border);text-align:left;padding:8px 10px}.content thead th{background:var(--surface-2)}mark{background:linear-gradient(transparent 58%, var(--highlight) 58%);color:var(--text);-webkit-box-decoration-break:clone;box-decoration-break:clone;padding:0 2px;font-weight:700}.table-scroll{overflow-x:auto}.formula{background:var(--surface-2);border-radius:var(--radius-sm);color:var(--text);padding:12px 14px;font-size:15px}.faq details{border-bottom:1px solid var(--border);padding:14px 0}.faq summary{cursor:pointer;justify-content:space-between;gap:12px;font-weight:700;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--text-3);font-size:20px;font-weight:400;line-height:1}.faq details[open] summary:after{content:"−"}.faq details p{margin:10px 0 0}.disclaimer{color:var(--text-3);border-radius:var(--radius-sm);background:var(--surface-2);margin-top:32px;padding:14px;font-size:13px}main>.disclaimer{background:var(--surface)}.calc-list{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.calc-list a{background:var(--surface);border-radius:var(--radius);height:100%;color:var(--text);padding:20px;transition:background .15s,transform .1s;display:block}.calc-list a:hover{background:var(--surface-hover);text-decoration:none}.calc-list a:active{transform:scale(.98)}.calc-list strong{margin-bottom:4px;font-size:17px;font-weight:700;display:block}.calc-list span{color:var(--text-3);font-size:13px}.section-title{color:var(--text);margin:36px 0 12px;font-size:19px;font-weight:800}.ad-slot{min-height:100px;margin:24px 0}.meta-chips{flex-wrap:wrap;gap:6px;margin:-8px 0 20px;padding:0;list-style:none;display:flex}.chip{background:var(--accent-soft);height:30px;color:var(--accent-strong);border-radius:8px;align-items:center;gap:5px;padding:0 10px;font-size:13px;font-weight:700;display:inline-flex}a.chip:hover{background:#dfe7ff;text-decoration:none}.chip svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;width:14px;height:14px}.basis{scroll-margin-top:72px}.basis ul{margin:0;padding:0;list-style:none}.basis li{border-top:1px solid var(--border)}.basis li:last-child{border-bottom:1px solid var(--border)}.basis a{color:var(--text);justify-content:space-between;gap:12px;padding:12px 0;font-size:15px;font-weight:600;display:flex}.basis a:after{content:"↗";color:var(--text-3)}.basis a:hover{color:var(--accent);text-decoration:none}.basis-note{margin-top:10px;font-size:13px}.steps{border-radius:var(--radius-sm);background:var(--surface-2);margin-top:16px}.steps summary{color:var(--text-2);cursor:pointer;justify-content:space-between;align-items:center;padding:14px 16px;font-size:15px;font-weight:700;list-style:none;display:flex}.steps summary::-webkit-details-marker{display:none}.steps summary:after{content:"";border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);width:8px;height:8px;transition:transform .15s;transform:rotate(45deg)translateY(-2px)}.steps[open] summary:after{transform:rotate(-135deg)translateY(-2px)}.steps ol{counter-reset:step;margin:0;padding:0 16px 16px;list-style:none}.steps li{counter-increment:step;border-top:1px solid var(--border);font-variant-numeric:tabular-nums;padding:10px 0 10px 30px;position:relative}.steps li:before{content:counter(step);background:var(--accent);width:20px;height:20px;color:var(--on-accent);text-align:center;border-radius:50%;font-size:12px;font-weight:700;line-height:20px;position:absolute;top:12px;left:0}.step-title{color:var(--text);font-size:14px;font-weight:700;display:block}.step-formula{color:var(--text-2);font-size:14px;display:block}.step-result{color:var(--accent);font-size:15px;font-weight:800;display:block}.steps li.step-note{counter-increment:none;padding-left:0}.steps li.step-note:before{content:none}.steps li.step-note .step-formula{color:var(--text-3);font-size:13px}#result{scroll-margin-top:72px}.result-bar{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:20;background:var(--accent);height:60px;color:var(--on-accent);visibility:hidden;border-radius:18px;justify-content:space-between;align-items:center;gap:12px;padding:0 20px;transition:transform .25s,visibility .25s;display:flex;position:fixed;transform:translateY(calc(100% + 24px));box-shadow:0 8px 24px #1c3fe047}.result-bar.show{visibility:visible;transform:none}.result-bar:hover{text-decoration:none}.result-bar span{opacity:.85;white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.result-bar strong{letter-spacing:-.02em;white-space:nowrap;font-variant-numeric:tabular-nums;font-size:20px;font-weight:800}.result-bar strong:after{content:" ›";opacity:.7;font-weight:600}.guide-meta{color:var(--text-3);margin:0 0 4px;font-size:13px}.content .example{background:var(--surface-2);border-radius:var(--radius-sm);margin:16px 0;padding:4px 16px 12px}.content .example h3{margin-top:16px}.sources{font-size:14px}.guide-list{grid-template-columns:1fr}
