:root{--ink:#19372f;--muted:#68756f;--paper:#f8f7f2;--line:#dce1d7;--accent:#28634d;--tint:#e9efe4}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6}header,main,footer{max-width:1080px;margin:auto;padding-left:36px;padding-right:36px}header{height:84px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}a{color:var(--accent);text-underline-offset:4px}.brand{text-decoration:none;font-size:22px;font-weight:700}.header-link{font-size:14px;text-decoration:none}.intro{padding:45px 0 32px}h1{font-size:clamp(32px,4vw,44px);letter-spacing:-1.5px;line-height:1.25;margin:0 0 16px}.intro>p{font-size:15px;color:var(--muted);margin:0}h2{font-size:20px;margin:0 0 20px}h3{font-size:16px}.workspace{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);gap:64px;align-items:start}label{display:block;font-size:15px;margin-bottom:17px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}.fields label{margin-bottom:17px}input,select{display:block;width:100%;height:48px;border:1px solid #bdc9bb;border-radius:5px;background:#fffefa;padding:10px 12px;font:inherit;color:var(--ink);margin-top:7px}input:focus,select:focus,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #8aaf93;outline-offset:2px}.with-unit{position:relative}.with-unit input{padding-right:70px}.with-unit>span{position:absolute;right:12px;top:12px;font-size:13px;color:var(--muted);pointer-events:none}.hint{font-size:12px;line-height:1.75;color:var(--muted)}#balanceBox>.hint{margin-top:-10px;margin-bottom:20px}.result{position:sticky;top:28px;background:var(--tint);padding:32px;border-radius:5px}.result-kicker{font-size:15px;margin:0}.amount{margin:12px 0 10px;display:flex;flex-wrap:wrap;gap:10px;align-items:baseline}.amount>span{font-size:clamp(45px,5vw,66px);font-weight:650;line-height:1.2;letter-spacing:-2px;font-variant-numeric:tabular-nums}.amount small{font-size:16px}#resultMeta{font-size:13px;margin:10px 0;color:#4d6657}.result-caveat{font-size:12px;color:var(--muted);margin:17px 0 26px}.result-details{border-top:1px solid #c4d0bf;border-bottom:0;padding:16px 0 0}.result-details>summary{font-size:14px}.split>div{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid #cad5c5;padding:12px 0;font-size:13px}.split strong{font-weight:550}.balance-summary{margin-top:22px;font-size:12px;display:flex;flex-direction:column}.balance-summary strong{font-size:23px;font-weight:550}#chart svg{width:100%;height:105px}.primary,.secondary,.link{cursor:pointer;font:inherit;border-radius:5px;transition:background .15s}.primary{width:100%;display:flex;justify-content:space-between;background:var(--accent);color:#fff;border:0;padding:15px 18px;font-size:17px;font-weight:600;margin-top:22px}.primary:hover{background:#194b39}.secondary{border:1px solid #a8baa6;background:transparent;color:var(--ink);padding:8px 12px;font-size:13px}.secondary:hover{background:#dbe7d7}.link{border:0;background:none;text-decoration:underline;font-size:12px;padding:8px}details{border-bottom:1px solid var(--line);padding:15px 0}summary{cursor:pointer;font-size:14px}.advanced{padding:12px 0}.advanced summary{color:#4a6656}.advanced>summary{list-style:none}.advanced>summary:after{content:'＋';float:right}.advanced[open]>summary:after{content:'－'}.advanced>summary::-webkit-details-marker{display:none}.advanced[open]>summary{margin-bottom:20px}.advanced label{font-size:13px}#error{font-size:13px;color:#a03224}.scroll{max-width:100%;overflow-x:auto;margin:16px 0}table{width:100%;border-collapse:collapse;font-size:12px;text-align:right;white-space:nowrap}th{font-weight:500;color:var(--muted);background:#eef1e8}th,td{padding:10px;border-bottom:1px solid var(--line)}th:first-child,td:first-child{text-align:left}td input{min-width:82px;font-size:12px;height:40px}#historyRows input[data-key=year],#futureRows input[data-key=year]{min-width:85px}.more{margin-top:45px;border-top:1px solid var(--line)}.more>details{padding:20px 0}.more>details>summary{font-size:15px}.more>details[open]>summary{margin-bottom:20px}#search{max-width:360px}#policyList summary{font-weight:600}#policyList summary span{font-size:12px;font-weight:400;color:var(--muted);margin-left:15px}.policy-body{font-size:13px;padding:10px 0}.policy-body p,.policy-body a{overflow-wrap:anywhere}.policy-body ul{padding-left:20px}.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;font-size:13px}footer{margin-top:40px;padding-top:22px;padding-bottom:30px;color:var(--muted);display:flex;justify-content:space-between;font-size:12px}.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}[hidden]{display:none!important}@media(max-width:760px){header,main,footer{padding-left:22px;padding-right:22px}header{height:70px}.intro{padding:32px 0}.workspace{grid-template-columns:1fr;gap:24px}.result{position:static;padding:28px}.amount>span{font-size:58px}.fields{gap:14px}.method-grid{grid-template-columns:1fr;gap:6px}#policyList summary span{display:block;margin-left:0}footer{display:block}footer span{display:block;margin-top:6px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

#cityBaseLabel small{font-size:12px;color:var(--muted);font-weight:400;margin-left:8px}#selectionNote{margin-top:-10px;margin-bottom:4px}#baseSource{margin-top:0;margin-bottom:20px}#baseSource:empty{display:none}#base:disabled{background:#f0f1eb;color:#68756f}.location-fields select{min-width:0}

#paidHint{margin-top:-6px;margin-bottom:8px}.paid-help{padding:8px 0 14px;margin-bottom:20px}.paid-help summary{font-size:12px;color:var(--accent)}.paid-help ol{padding-left:22px;font-size:13px}.paid-help li{margin:14px 0}.check-label{display:flex;align-items:center;gap:8px;font-size:12px}.check-label input{width:16px;height:16px;flex-shrink:0;margin:0}

input[aria-invalid="true"],select[aria-invalid="true"]{border-color:#a03224;outline-color:#a03224}

.workspace>form{min-width:0}

.rate-note{display:block;text-align:center;font-size:11px;color:var(--muted);margin-top:3px}

.year-shortcuts{display:flex;flex-wrap:wrap;gap:8px;margin:-4px 0 12px}.year-shortcuts button{font:inherit;font-size:12px;border:1px solid #bdc9bb;border-radius:4px;padding:6px 10px;background:transparent;color:var(--accent);cursor:pointer}.year-shortcuts button[aria-pressed="true"]{background:var(--tint);border-color:var(--accent)}

#subsidyHint{margin-top:-10px;margin-bottom:20px}

.history-breakdown{border-top:1px solid var(--line);padding-top:12px;margin-top:16px}.breakdown-title{font-size:13px;margin:0 0 8px}.history-breakdown dl{margin:0}.history-breakdown dl>div{display:flex;justify-content:space-between;gap:12px;padding:6px 0;font-size:13px}.history-breakdown dd{margin:0;font-weight:600;font-variant-numeric:tabular-nums}.account-breakdown{padding:10px 0 4px;border-bottom:1px solid #cad5c5}.breakdown-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr) minmax(0,.8fr);gap:10px;padding:5px 0;align-items:start;font-size:12px}.breakdown-grid>strong{font-weight:500;text-align:right;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.breakdown-head{color:var(--muted);font-size:11px}.account-breakdown>.hint{margin:8px 0}

.breakdown-head span:not(:first-child){text-align:right}

#birthHint{margin-top:-7px;margin-bottom:14px}input[type="month"]{min-width:0}

.allowance-fields .field-title{display:block;min-height:3.2em}.allowance-fields label{font-size:13px}#allowanceHint{margin-top:-8px;margin-bottom:20px}.result-formula{margin:6px 0 12px}.result-formula:empty{display:none}

.intro .start-reading{margin-top:18px;font-size:13px;line-height:1.9}.start-reading a{white-space:normal}