:root{--ink:#14211f;--muted:#55655f;--bg:#f5f8f7;--surface:#fff;--line:#d3ddd9;--primary:#0f5e54;--primary-ink:#fff;--primary-soft:#e3f1ee;--accent:#b45309;--danger:#b42318;--danger-soft:#fdecea;--warn-soft:#fff6e0;--radius:12px;--shadow:0 1px 2px rgb(20 33 31 / 8%),0 4px 14px rgb(20 33 31 / 6%);--font:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;--mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace}*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:72px}body{margin:0;font:400 1rem/1.6 var(--font);color:var(--ink);background:var(--bg)}img,svg{max-width:100%;height:auto}a{color:var(--primary);text-underline-offset:2px}a:hover{color:#0a4a42}:focus-visible{outline:3px solid #1d7be0;outline-offset:2px;border-radius:4px}[hidden]{display:none !important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}.skip:focus{left:8px}.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 16px}.muted{color:var(--muted)}code{font:0.92em var(--mono);background:var(--primary-soft);padding:1px 5px;border-radius:4px}.devbar{background:#3b2a00;color:#ffe9a8;font-size:0.85rem;text-align:center;padding:6px 12px}.site-header{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line)}.bar{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:12px}.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-weight:700;font-size:1.05rem;color:var(--primary);text-decoration:none}.logo{color:var(--primary);flex:none}.nav-desktop{display:none;gap:4px}.nav-desktop a,.nav-mobile nav 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0;list-style:none;margin:8px 0;padding:0;font-size:0.875rem;color:var(--muted)}.breadcrumbs li + li::before{content:'›';margin:0 8px;color:#8a9893}.breadcrumbs a{color:var(--muted)}.page-head{margin:12px 0 18px}h1{font-size:clamp(1.7rem,5.2vw,2.4rem);line-height:1.15;margin:0 0 8px;letter-spacing:-0.01em}h2{font-size:clamp(1.3rem,3.6vw,1.6rem);line-height:1.25;margin:0 0 12px}h3{font-size:1.15rem;line-height:1.3;margin:22px 0 8px}h4{margin:0 0 8px}.lead{font-size:1.08rem;color:var(--muted);margin:0;max-width:62ch}.section{margin:36px 0}.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}.prose{max-width:72ch}.prose.narrow{max-width:72ch}.prose p,.prose ul,.prose ol{margin:0 0 14px}.prose li{margin-bottom:6px}.prose h2{margin-top:32px}.prose h2:first-child{margin-top:0}.prose blockquote{margin:16px 0;padding:10px 16px;border-left:4px solid var(--primary);background:var(--primary-soft);border-radius:0 8px 8px 0}.prose blockquote p{margin:0}.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:16px;margin:10px 0 24px}.tool-card h3{margin-top:0}.hint{color:var(--muted);margin:0 0 12px;font-size:0.95rem}.hint.small{font-size:0.85rem}.field{display:flex;flex-direction:column;gap:4px;font-size:0.9rem;font-weight:600;min-width:0}.field.inline{flex-direction:row;align-items:center;gap:8px}input[type='text'],input[type='month'],select{width:100%;min-height:48px;padding:8px 12px;font:500 1.15rem var(--font);color:var(--ink);background:#fff;border:1.5px solid #788a84;border-radius:10px;font-variant-numeric:tabular-nums}select{width:auto;font-size:1rem}input::placeholder{color:#677873;font-weight:400;opacity:1}input.invalid{border-color:var(--danger);background:var(--danger-soft)}.field-error{margin:6px 0 0;color:var(--danger);font-size:0.9rem;font-weight:500}.rows{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:10px}.row{display:grid;grid-template-columns:48px 1fr 44px;gap:8px;align-items:center}.row .field-error{grid-column:1 / -1;margin:-2px 0 0}.sign{min-height:48px;font:700 1.5rem var(--font);border-radius:10px;border:1.5px solid #788a84;background:var(--primary-soft);color:var(--primary);cursor:pointer}.sign[aria-pressed='true']{background:#fdeede;color:var(--accent);border-color:var(--accent)}.icon-btn{min-width:44px;min-height:44px;border:0;background:transparent;color:var(--muted);font-size:1.5rem;line-height:1;border-radius:10px;cursor:pointer}.icon-btn:hover{background:var(--danger-soft);color:var(--danger)}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:12px 0 0}.actions.stack{flex-direction:column;align-items:stretch}.btn{min-height:48px;padding:10px 18px;border-radius:10px;font:600 1rem var(--font);cursor:pointer;border:1.5px solid transparent}.btn.primary{background:var(--primary);color:var(--primary-ink)}.btn.primary:hover{background:#0a4a42}.btn.secondary{background:#fff;color:var(--primary);border-color:var(--primary)}.btn.secondary:hover{background:var(--primary-soft)}.btn.ghost{background:transparent;color:var(--muted);border-color:var(--line)}.btn.ghost:hover{background:#eef2f1}.link-btn{background:none;border:0;padding:8px 0;color:var(--primary);font:600 0.95rem var(--font);text-decoration:underline;cursor:pointer;min-height:44px;text-align:left}.copy-status{font-size:0.9rem;color:var(--primary);min-height:1.3em}.result{margin-top:18px;padding:16px;background:var(--primary-soft);border-radius:var(--radius)}.result-label{margin:0;font-size:0.85rem;font-weight:600;text-transform:uppercase;letter-spacing:0.04em;color:var(--muted)}.result-main{margin:2px 0 8px;font:700 clamp(2.4rem,12vw,3.4rem)/1.1 var(--font);color:var(--primary);font-variant-numeric:tabular-nums}.result-main.small{font-size:1.9rem;margin:10px 0 4px}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:0}.result-grid div{background:#fff;border-radius:10px;padding:8px 12px}.result-grid dt{font-size:0.8rem;color:var(--muted)}.result-grid dd{margin:0;font:700 1.25rem var(--font);font-variant-numeric:tabular-nums}.steps{margin-top:12px}.steps summary{cursor:pointer;font-weight:600;color:var(--primary);min-height:44px;display:flex;align-items:center}.steps ol{margin:8px 0 0;padding-left:22px}.conv-explain{margin:4px 0 0;color:var(--muted);font-size:0.95rem}.settings{display:grid;gap:8px;margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--line)}.month-gen{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;padding-top:10px}.month-gen .field{flex:1 1 180px}.month-opt summary{cursor:pointer;font-weight:600;color:var(--primary);min-height:44px;display:flex;align-items:center}.tool-layout{display:grid;gap:16px}.day{border:1px solid var(--line);border-radius:var(--radius);padding:12px;margin-bottom:12px;background:#fcfdfd}.day.weekend{background:#f3f5f4}.day.has-error{border-color:var(--danger)}.day-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}.day-title{margin:0;font-size:1rem;font-weight:700;line-height:1.3;flex:1}.day-total{font:700 1.15rem var(--font);color:var(--primary);font-variant-numeric:tabular-nums}.period{display:grid;grid-template-columns:1fr 1fr 44px;gap:8px;align-items:end;margin-bottom:8px}.day-actions{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px}.deduct{display:flex;align-items:center;gap:8px;font-size:0.85rem;font-weight:600}.deduct input{width:84px;min-height:44px}.day-detail{margin:6px 0 0;font-size:0.88rem;color:var(--muted)}.summary{background:var(--primary-soft);border-radius:var(--radius);padding:16px}.summary h3{margin:0 0 8px}.weeks{margin-top:14px}.persist{margin-top:14px;border-top:1px solid #bcd5cf;padding-top:6px}.sticky-total{position:sticky;bottom:0;z-index:5;display:flex;justify-content:space-between;align-items:center;margin:12px -16px -16px;padding:10px 16px;background:var(--primary);color:#fff;border-radius:0 0 16px 16px;font-weight:600}.sticky-total strong{font:700 1.3rem var(--font);font-variant-numeric:tabular-nums}@media (min-width:900px){.tool-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start}.summary{position:sticky;top:76px}.sticky-total{display:none}.tool-card.wide{padding:24px}.settings{grid-template-columns:minmax(200px,280px) 1fr;column-gap:24px;align-items:start}.settings .hint{grid-column:1;margin:0}.month-opt{grid-column:2;grid-row:1 / span 2}}.conv-grid{display:grid;gap:16px;margin:10px 0 24px}.conv-grid 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0;font-size:0.95rem;max-width:80ch}.devnote{background:#e8f0ff;border-color:#b8ccf5}.badge{color:var(--accent)}.table-wrap{overflow-x:auto;margin:0 0 16px;-webkit-overflow-scrolling:touch}table{width:100%;border-collapse:collapse;background:var(--surface);font-variant-numeric:tabular-nums;font-size:0.95rem}caption{text-align:left;font-weight:600;padding:0 0 6px;color:var(--muted);font-size:0.9rem}th,td{padding:8px 12px;border:1px solid var(--line);text-align:left}th{background:var(--primary-soft)}.table-pair{display:grid;gap:8px}@media (min-width:860px){.table-pair{grid-template-columns:1fr 1fr;gap:24px}}.faq details{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-bottom:8px}.faq summary{cursor:pointer;padding:14px 16px;font-weight:600;min-height:48px}.faq-a{padding:0 16px 8px;max-width:72ch}.faq-a p{margin:0 0 10px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 20px}.chips a{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);text-decoration:none;font-weight:500;font-size:0.92rem}.chips a[aria-current='page']{background:var(--primary);color:#fff;border-color:var(--primary)}.post-grid{list-style:none;margin:0;padding:0;display:grid;gap:14px}@media (min-width:720px){.post-grid{grid-template-columns:repeat(3,1fr)}}.post-card{height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.post-card h3{margin:4px 0 8px;font-size:1.1rem}.post-card h3 a{color:var(--ink);text-decoration:none}.post-card h3 a:hover{color:var(--primary);text-decoration:underline}.post-card p{margin:0;color:var(--muted);font-size:0.95rem}.post-card .post-meta{margin:0;font-size:0.82rem}.post-img img{width:100%;border-radius:8px;margin-bottom:10px}.post-meta{font-size:0.9rem;color:var(--muted);margin:0 0 6px}.pagination{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 0}.pagination a,.pagination span{min-width:44px;min-height:44px;display:inline-grid;place-items:center;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:#fff;text-decoration:none}.pagination [aria-current='page']{background:var(--primary);color:#fff;border-color:var(--primary)}.article{max-width:760px}.article .prose{max-width:none;font-size:1.08rem;line-height:1.7}.article-body h2{margin-top:36px}.byline{margin:0;color:var(--muted);font-size:0.92rem}.article-img{margin:0 0 20px}.article-img img{border-radius:var(--radius);width:100%}.author-box{margin-top:32px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.author-box p{margin:0 0 4px}.ad{margin:24px 0;min-height:280px;text-align:center;background:transparent}.ad-label{display:block;font-size:0.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:4px}.ad-sidebar{min-height:600px}.site-footer{background:#10201d;color:#cfdcd8;padding:36px 0 28px;margin-top:24px}.site-footer a{color:#e7f2ef}.site-footer h2{font-size:0.95rem;color:#fff;margin:0 0 10px}.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin-bottom:4px}.site-footer li a{display:inline-block;padding:4px 0}.foot-grid{display:grid;gap:24px}@media (min-width:720px){.foot-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}}.foot-note{font-size:0.85rem;margin:28px 0 6px;max-width:80ch}.foot-copy{font-size:0.85rem;margin:0;color:#9db1ab}.print-area{font-size:12px}.print-area table{font-size:12px}@media print{body>*:not(main){display:none !important}main>*:not(.tool-card){display:none !important}.tool-card{border:0;box-shadow:none;padding:0;margin:0}.tool-card>*:not(.print-area){display:none !important}.print-area[hidden]{display:block !important}body{background:#fff}th{background:#eee !important;-webkit-print-color-adjust:exact;print-color-adjust:exact}}@media (prefers-reduced-motion:no-preference){.btn,.card,.sign{transition:background-color 0.15s,border-color 0.15s,box-shadow 0.15s}}.config-pending{background:var(--warn-soft);border:1px dashed var(--accent);border-radius:6px;padding:1px 6px;color:#7a3a00;font-weight:600}