:root{--green:#13795b;--ink:#182a25;--muted:#52655d;--border:#dce6e0;--result:#f0f8f4;color-scheme:light;font-family:"Noto Sans TC","Microsoft JhengHei","PingFang TC",system-ui,sans-serif;color:var(--ink);background:#fff;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}a{color:var(--green);text-underline-offset:5px;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #65a78e;outline-offset:3px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;left:16px;top:-80px;z-index:5;background:white;padding:12px}.skip:focus{top:8px}.site-header{height:76px;display:flex;align-items:center;gap:32px;padding:0 max(28px,calc((100vw - 1240px)/2));border-bottom:1px solid var(--border)}.brand{font-size:24px;font-weight:700;text-decoration:none;white-space:nowrap}.site-header nav{display:flex;gap:24px;margin-left:auto;white-space:nowrap;font-size:15px}.site-header nav a{color:var(--ink);text-decoration:none}h1,h2,h3,p{margin-top:0}h1{font-size:32px;font-weight:650;line-height:1.35;margin-bottom:14px;letter-spacing:-.02em}h2{font-size:20px;font-weight:600;line-height:1.5;margin-bottom:20px}h3{font-size:18px;font-weight:600}p{line-height:1.75}ul{padding:0;list-style:none}.home{max-width:1040px;margin:0 auto;padding:0 36px 48px}.home-intro{text-align:center;padding:82px 0 70px}.home-intro h1{font-size:40px;margin-bottom:20px}.home-intro>p{font-size:20px;margin-bottom:38px}.search{display:flex;align-items:center;max-width:740px;height:58px;border:1px solid #80b3a2;border-radius:40px;margin:0 auto;overflow:hidden;background:#fff}.search input{min-width:0;flex:1;padding:14px 24px;border:0;outline:none;background:transparent;font-size:16px}.search input:focus-visible{outline-offset:-4px}.search button{flex:0 0 58px;height:100%;border:0;background:transparent;color:var(--green);display:grid;place-items:center}.search svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7}.search.compact{height:44px;width:420px;max-width:40vw;margin:0}.search.compact input{padding:10px 16px;font-size:14px}.search.compact button{flex-basis:44px}.popular-list{display:grid;grid-auto-flow:column;grid-template-rows:repeat(2,auto);grid-template-columns:repeat(3,1fr);gap:24px 32px;margin:0 0 54px;font-size:18px}.category-nav{padding-top:30px;border-top:1px solid var(--border);margin-bottom:48px}.category-nav ul{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;font-size:17px}.all-tools{border-top:1px solid var(--border);padding-top:30px}.tool-group{padding:12px 0 28px;scroll-margin-top:20px}.tool-group ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 36px}.tool-group li>a{font-size:17px}.tool-group li>p{font-size:14px;color:var(--muted);margin:8px 0 0;line-height:1.6}.tool-page{max-width:1112px;margin:0 auto;padding:28px 36px 56px}.breadcrumb{display:flex;flex-wrap:wrap;gap:12px;font-size:14px;color:var(--muted);margin-bottom:22px}.breadcrumb a{text-decoration:none}.intro{font-size:18px;margin-bottom:28px}.calculator-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}#calculator-form{border:1px solid var(--border);border-radius:8px;padding:24px}.field{margin-bottom:20px}.field label{display:block;font-size:15px;line-height:1.5;margin-bottom:7px}.field input:not([type=checkbox]),.field select,.field textarea{width:100%;min-height:44px;border:1px solid #c9d7cf;border-radius:5px;background:#fff;padding:9px 12px;color:var(--ink);font-size:16px}.field textarea{resize:vertical;line-height:1.6}.field.checkbox{display:flex;gap:10px;align-items:center}.field.checkbox input{width:20px;height:20px;margin:0;accent-color:var(--green)}.field.checkbox label{margin:0}.form-actions{display:grid;gap:10px}.form-actions button{height:44px;border-radius:5px;font-size:16px;font-weight:500}.primary{background:var(--green);color:white;border:1px solid var(--green)}.primary:hover{background:#0c644a}.secondary{background:#fff;color:var(--green);border:1px solid #acc8bb}.example-note{font-size:13px;color:var(--muted);margin:16px 0 0}.form-error{font-size:14px;color:#9d2d28;background:#fff2ef;padding:10px;border-radius:4px}.result{position:sticky;top:24px;background:var(--result);border:1px solid #dcebe3;border-radius:8px;padding:28px;overflow-wrap:anywhere}.result-label{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px}.result-number{font-size:40px;line-height:1.25;font-weight:650;color:var(--green);margin-bottom:26px;letter-spacing:-.02em}.result-number span{display:inline-block;font-size:20px;margin-left:9px;letter-spacing:0}.breakdown{border-top:1px solid #d5e6db;padding-top:18px;margin:0 0 24px}.breakdown>div{display:flex;justify-content:space-between;gap:16px;padding:7px 0;font-size:15px}.breakdown dt{line-height:1.6}.breakdown dd{margin:0;text-align:right;line-height:1.6}.result-note{font-size:14px;color:var(--muted);margin:18px 0 0}.chart{margin:26px 0 8px}.chart svg{display:block;width:100%;height:auto;overflow:visible}.chart text{font-family:inherit;font-size:11px;fill:var(--muted)}.chart .axis{stroke:#9cb5a6;fill:none;stroke-width:1}.chart .grid{stroke:#d5e6db;fill:none;stroke-width:1}.chart .line{fill:none;stroke:var(--green);stroke-width:2}.chart circle{fill:var(--green)}.chart figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:6px}.copy-result{margin-top:18px;min-height:40px;background:transparent;color:var(--green);border:1px solid #acc8bb;border-radius:5px;padding:8px 14px;font-size:14px}.small{font-size:13px;color:var(--muted);margin:6px 0 0}.tool-info{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}.tool-info h2{font-size:17px;margin-bottom:12px}.tool-info p,.tool-info li{font-size:14px;line-height:1.75;margin-bottom:12px}.sources{color:var(--muted)}.prose{max-width:820px;margin:50px auto;padding:0 28px;min-height:60vh}.prose p{font-size:16px}.prose h2{margin-top:30px}footer{border-top:1px solid var(--border);padding:24px;text-align:center;display:flex;justify-content:center;gap:18px;font-size:14px}footer a{color:var(--ink);text-decoration:none}#search-status{color:var(--muted);font-size:15px}
@media(max-width:1000px){.site-header{gap:20px;padding:0 24px}.search.compact{width:340px}.site-header nav{gap:16px}.result{padding:22px}.result-number{font-size:34px}.result-number span{font-size:18px}.home{padding:0 28px 40px}.tool-page{padding:26px 28px 44px}}
@media(max-width:720px){.site-header{height:auto;min-height:68px;padding:16px 20px;gap:14px;flex-wrap:wrap}.brand{font-size:22px}.site-header nav{font-size:14px;gap:16px}.site-header .compact{order:3;max-width:none;width:100%;height:44px}.search.compact input{font-size:14px}.home{padding:0 20px 32px}.home-intro{padding:56px 0 42px}.home-intro h1{font-size:32px;margin-bottom:18px}.home-intro>p{font-size:16px;line-height:1.75;margin-bottom:26px}.search{height:54px}.search input{padding:12px 16px;font-size:15px}.search button{flex-basis:46px}.popular-list{grid-auto-flow:row;grid-template-rows:none;grid-template-columns:1fr;gap:19px;font-size:17px;margin-bottom:32px}.category-nav{padding-top:24px;margin-bottom:32px}.category-nav ul{grid-template-columns:repeat(2,1fr);gap:20px 16px;font-size:16px}.tool-group ul{grid-template-columns:1fr;gap:22px}.tool-page{padding:22px 20px 40px}.breadcrumb{font-size:13px;margin-bottom:18px;gap:8px}h1{font-size:26px}.intro{font-size:16px;margin-bottom:24px}.calculator-layout{grid-template-columns:1fr;gap:18px}#calculator-form{padding:20px}.field{margin-bottom:18px}.result{position:static;padding:22px}.result-number{font-size:32px}.result-number span{font-size:18px}.breakdown>div{font-size:14px}.tool-info{grid-template-columns:1fr;gap:20px;margin-top:28px}.prose{margin:30px auto;padding:0 20px}}
@media(prefers-reduced-motion:no-preference){button,a{transition:background-color .12s ease,color .12s ease}}