:root{--paper: #f7f4ee;--paper-2: #efebe2;--card: #fffdf9;--ink: #1e2328;--ink-2: #444c55;--muted: #6c737a;--line: #e3ddd1;--line-2: #d3cbbb;--slate: #34495e;--slate-2: #283a4b;--slate-soft: #e7ebee;--slate-tint: #f1f3f5;--ocher: #c99a2e;--ocher-ink: #8a6512;--ocher-soft: #f6eedb;--ok: #2f6b55;--ok-soft: #e3efe9;--warn-soft: #f3e7e2;--warn-ink: #8b3d2a;--r-sm: 6px;--r: 12px;--r-lg: 18px;--shadow-1: 0 1px 2px rgba(30, 35, 40, .05), 0 2px 8px rgba(30, 35, 40, .04);--shadow-2: 0 2px 4px rgba(30, 35, 40, .05), 0 12px 32px rgba(40, 58, 75, .09);--ease: cubic-bezier(.2, .7, .2, 1);--sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;--mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, "Roboto Mono", monospace;--shell: 1180px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.7}img{max-width:100%;height:auto}a{color:var(--slate);text-decoration-color:#34495e59;text-underline-offset:3px;transition:color .2s var(--ease),text-decoration-color .2s var(--ease)}a:hover{color:var(--slate-2);text-decoration-color:currentColor}:focus-visible{outline:2px solid var(--ocher);outline-offset:2px;border-radius:4px}.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}.shell{width:min(100% - 32px,var(--shell));margin-inline:auto}.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:6px 12px;border-radius:var(--r-sm);z-index:10}.skip:focus{left:12px}h1,h2,h3,h4{font-weight:600;letter-spacing:-.02em;line-height:1.3;margin:0}p{margin:0}.eyebrow{font-size:12.5px;letter-spacing:.16em;color:var(--muted);font-weight:600;text-transform:uppercase}.mast{position:sticky;top:0;z-index:5;background:#f7f4eee0;backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}.mast .shell{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}.wordmark{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);min-width:0}.wordmark img{flex:none;border-radius:8px}.wordmark span{display:flex;flex-direction:column;line-height:1.25;min-width:0}.wordmark b{font-weight:600;font-size:16px;letter-spacing:-.01em;white-space:nowrap}.wordmark small{font-size:11px;color:var(--muted);letter-spacing:.12em;font-family:var(--mono);white-space:nowrap}.nav{display:flex;gap:4px}.nav a{padding:8px 12px;border-radius:999px;text-decoration:none;color:var(--ink-2);font-size:14.5px;white-space:nowrap}.nav a:hover{background:var(--paper-2);color:var(--ink)}.nav a[aria-current=page]{background:var(--slate);color:#fff}.hero{padding:48px 0 20px}.hero h1{font-size:clamp(28px,4.4vw,44px);letter-spacing:-.03em;margin-top:12px;max-width:16em}.hero .lede{font-size:17px;color:var(--ink-2);margin-top:14px;max-width:40em}.hero .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-2);background:var(--card);color:var(--ink-2);border-radius:999px;padding:4px 12px;font-size:13px}.chip i{width:7px;height:7px;border-radius:2px;background:var(--slate);display:inline-block}.chip.cap i{background:var(--ocher)}.desk{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px;align-items:start;padding:12px 0 56px}.badge{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-2);overflow:hidden}.badge-top{position:relative;background:var(--slate);color:#fff;padding:22px 24px 18px}.badge-top:before{content:"";position:absolute;top:9px;left:50%;width:56px;height:8px;margin-left:-28px;border-radius:99px;background:var(--paper);box-shadow:inset 0 1px 2px #00000040}.badge-top h2{font-size:18px;margin-top:8px}.badge-top p{font-size:13px;opacity:.78;margin-top:2px}.badge-top .eyebrow{color:#ffffffb3}.form{padding:20px 24px 24px;display:grid;gap:16px}.field{display:grid;gap:6px}.field>label,.field>.lab{font-size:14px;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;gap:8px}.field>label small,.field>.lab small{font-weight:400;color:var(--muted);font-size:12.5px}.field .help{font-size:12.5px;color:var(--muted);line-height:1.55}.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}input[type=date],input[type=number],select{width:100%;min-width:0;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1px solid var(--line-2);border-radius:10px;padding:10px 12px;min-height:44px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);-webkit-appearance:none;appearance:none}select{background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 19px,calc(100% - 13px) 19px;background-size:5px 5px;background-repeat:no-repeat;padding-right:34px}input[type=number]{font-family:var(--mono)}input:hover,select:hover{border-color:#bdb3a1}input:focus,select:focus{outline:none;border-color:var(--slate);box-shadow:0 0 0 3px #34495e24}.money{position:relative}.money input{padding-right:44px}.money:after{content:"元/月";position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:12px;color:var(--muted);pointer-events:none}.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);cursor:pointer}.check input{width:18px;height:18px;margin:3px 0 0;accent-color:var(--slate);flex:none}.sub-field{border-left:2px solid var(--slate-soft);padding-left:12px;display:grid;gap:10px}.sub-field[hidden]{display:none}.localsrc{font-size:12.5px;color:var(--muted);line-height:1.55;background:var(--slate-tint);border-radius:8px;padding:8px 10px}.localsrc:empty{display:none}.localsrc b{color:var(--ink-2);font-weight:600}.localsrc .warn{color:var(--warn-ink)}.nojs{font-size:13px;color:var(--muted)}.js .nojs{display:none}.card-res{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-2);padding:24px;position:relative}.card-res:before{content:"";position:absolute;inset:0 0 auto;height:4px;border-radius:var(--r-lg) var(--r-lg) 0 0;background:repeating-linear-gradient(90deg,var(--slate) 0 14px,transparent 14px 20px);opacity:.9}.card-res>.head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}.card-res>.head h2{font-size:16px;color:var(--ink-2)}.card-res>.head span{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.08em}#result{transition:opacity .18s var(--ease)}#result.busy{opacity:.55}.verdict{margin-top:14px}.verdict .tag{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.04em;padding:3px 10px;border-radius:6px;background:var(--slate-soft);color:var(--slate-2)}.verdict.x2 .tag{background:var(--warn-soft);color:var(--warn-ink)}.verdict.none .tag{background:var(--paper-2);color:var(--ink-2)}.verdict.none p{margin-top:10px;color:var(--ink-2)}.verdict .big{display:flex;align-items:baseline;gap:6px;margin-top:8px}.verdict .big .num{font-size:clamp(34px,5vw,48px);font-weight:600;letter-spacing:-.03em;line-height:1.1}.verdict .big small{font-size:15px;color:var(--muted)}.verdict .sub{font-family:var(--mono);font-size:13.5px;color:var(--ink-2);margin-top:4px;overflow-wrap:anywhere}.tenure{font-size:14px;color:var(--ink-2);margin-top:14px}.why{font-size:13.5px;color:var(--ink-2);margin-top:14px;padding:10px 12px;background:var(--slate-tint);border-radius:10px}.punch{margin-top:12px;display:grid;gap:3px;max-height:330px;overflow-y:auto;padding:10px;border:1px dashed var(--line-2);border-radius:12px;background:repeating-linear-gradient(0deg,transparent 0 21px,rgba(52,73,94,.035) 21px 22px),#fff}.prow{display:grid;grid-template-columns:26px 1fr;align-items:center;gap:8px}.prow.hdr b{font:500 10px/1 var(--mono);color:var(--muted);text-align:center}.py{font-size:11px;color:var(--muted)}.pcells{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:3px}.c{display:block;height:16px;border-radius:3px;border:1px solid var(--line);background:transparent}.c.on{background:var(--slate);border-color:var(--slate)}.c.part{background:linear-gradient(90deg,var(--slate) 0 45%,transparent 45%);border-color:var(--slate)}.c.pre{background:repeating-linear-gradient(135deg,#cfd5db 0 3px,transparent 3px 6px);border-color:#c4ccd3}.c.cut{background:var(--ocher-soft);border-color:var(--ocher)}.c.off{border-style:dashed;opacity:.5}.plegend{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:8px;font-size:12px;color:var(--muted)}.plegend span{display:inline-flex;align-items:center;gap:6px}.plegend .c{width:14px;height:10px}.capbar{margin-top:16px}.capbar .track{position:relative;height:10px;background:var(--paper-2);border-radius:99px;margin-top:30px}.capbar .fill{position:absolute;inset:0 auto 0 0;background:var(--slate);border-radius:99px;transition:width .35s var(--ease)}.capbar .mark{position:absolute;top:-8px;bottom:-8px;width:2px;background:var(--ocher);transform:translate(-1px);transition:left .35s var(--ease)}.capbar .mark em{position:absolute;bottom:calc(100% + 4px);right:0;white-space:nowrap;font:600 11.5px/1 var(--mono);font-style:normal;color:var(--ocher-ink);background:var(--ocher-soft);border:1px solid rgba(201,154,46,.45);padding:3px 6px;border-radius:5px}.capbar p{font-size:13px;color:var(--ink-2);margin-top:10px}.capbar.over .fill{background:linear-gradient(90deg,var(--slate) 0 80%,var(--ocher) 100%)}.capnone{font-size:13px;color:var(--muted);margin-top:14px}.steps{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:0;border-top:1px solid var(--line)}.steps li{display:grid;grid-template-columns:30px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}.steps .sn{font-size:12px;color:var(--muted);padding-top:2px}.steps h4{font-size:14px;font-weight:600}.steps .f{font-size:13.5px;color:var(--ink-2);margin-top:2px;overflow-wrap:anywhere}.steps .v{font-family:var(--mono);font-size:14px;color:var(--ink);margin-top:2px;font-weight:600}.refs{display:flex;flex-wrap:wrap;gap:4px 6px;margin-top:6px}.refs a{font-size:12px;padding:1px 8px;border-radius:5px;background:var(--slate-tint);color:var(--slate);text-decoration:none;border:1px solid transparent}.refs a:hover{border-color:var(--slate-soft);background:#fff}.refs a.own{background:var(--ocher-soft);color:var(--ocher-ink)}span.refs{display:inline-flex;margin:0}.notes{margin:14px 0 0;padding-left:18px;font-size:13.5px;color:var(--ink-2);display:grid;gap:8px}.disclaim{font-size:12.5px;color:var(--muted);margin-top:16px}.res-error{margin-top:14px;padding:12px 14px;border-radius:10px;background:var(--warn-soft);color:var(--warn-ink);font-size:14px}.section{padding:56px 0;border-top:1px solid var(--line)}.section-head{display:grid;gap:8px;margin-bottom:24px;max-width:46em}.section-head h2{font-size:clamp(22px,2.8vw,30px)}.section-head p{color:var(--ink-2)}.matrix{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-1);font-size:14.5px}.matrix th,.matrix td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}.matrix thead th{font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:600;background:var(--paper-2)}.matrix tbody tr{transition:background .2s var(--ease)}.matrix tbody tr:hover{background:var(--slate-tint)}.matrix .grp{font-size:12px;color:var(--muted);white-space:nowrap}.matrix .out{font-family:var(--mono);font-weight:600;white-space:nowrap}.out.n{color:var(--slate)}.out.x2{color:var(--warn-ink)}.out.none{color:var(--muted);font-family:var(--sans);font-weight:500}.matrix .art{font-size:12.5px;color:var(--ink-2)}.matrix-wrap{overflow-x:auto;border-radius:var(--r)}.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.trio article{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}.trio article:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}.trio .sym{font-family:var(--mono);font-size:30px;font-weight:600;letter-spacing:-.02em;color:var(--slate)}.trio article:nth-child(3) .sym{color:var(--warn-ink)}.trio h3{font-size:16px;margin-top:6px}.trio p{font-size:14px;color:var(--ink-2);margin-top:8px}.trio .refs{margin-top:12px}.faq{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px}.faq details{border-bottom:1px solid var(--line);padding:14px 0}.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-family:var(--mono);color:var(--muted);transition:transform .2s var(--ease)}.faq details[open] summary:after{transform:rotate(45deg)}.faq details p{font-size:14.5px;color:var(--ink-2);margin-top:8px}.bounds{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.bounds div{padding:18px;border-radius:var(--r);background:var(--paper-2)}.bounds h3{font-size:15px}.bounds p{font-size:14px;color:var(--ink-2);margin-top:6px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 18px;border-radius:999px;font-size:14.5px;font-weight:600;text-decoration:none;border:1px solid var(--line-2);color:var(--ink);background:var(--card);transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease)}.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-1);color:var(--ink)}.btn.solid{background:var(--slate);border-color:var(--slate);color:#fff}.btn.solid:hover{background:var(--slate-2);color:#fff}.page-head{padding:44px 0 28px}.page-head h1{font-size:clamp(26px,3.8vw,38px);letter-spacing:-.03em;margin-top:10px;max-width:20em}.page-head .lede{font-size:16.5px;color:var(--ink-2);margin-top:12px;max-width:42em}.crumb{font-size:13px;color:var(--muted)}.crumb a{color:var(--muted)}.rules-grid>*,.article-grid>*,.desk>*{min-width:0}.rules-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:36px;padding-bottom:56px}.toc{position:sticky;top:84px;align-self:start;font-size:13.5px;display:grid;gap:4px}.toc b{font-size:12px;letter-spacing:.1em;color:var(--muted);margin:12px 0 4px}.toc a{text-decoration:none;color:var(--ink-2);padding:3px 0}.toc a:hover{color:var(--slate)}.src{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;margin-bottom:14px;box-shadow:var(--shadow-1);scroll-margin-top:84px}.src:target{border-color:var(--slate);box-shadow:0 0 0 3px #34495e1f,var(--shadow-1)}.src header{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:baseline}.src h3{font-size:16px}.src .meta{font-size:12.5px;color:var(--muted)}.src blockquote{margin:12px 0 0;padding:12px 14px;background:var(--slate-tint);border-left:3px solid var(--slate);border-radius:0 8px 8px 0;font-size:14.5px;color:var(--ink)}.src .use{font-size:13.5px;color:var(--ink-2);margin-top:10px}.src .links{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:12.5px;margin-top:8px;overflow-wrap:anywhere}.src.own{background:var(--ocher-soft);border-color:#c99a2e59}.src.own .kind{color:var(--ocher-ink);font-weight:600;font-size:12px;letter-spacing:.08em}.src.own p{margin-top:8px;font-size:14.5px}.group-title{font-size:20px;margin:32px 0 6px}.group-title:first-child{margin-top:0}.group-lede{color:var(--ink-2);font-size:14.5px;margin-bottom:14px}.wage-table{width:100%;border-collapse:collapse;font-size:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}.wage-table th,.wage-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.wage-table th{background:var(--paper-2);font-size:12.5px;color:var(--muted);font-weight:600}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:40px;padding-bottom:56px}.prose{font-size:16.5px;line-height:1.85;max-width:44em}.prose h2{font-size:22px;margin:36px 0 12px}.prose h3{font-size:18px;margin:26px 0 8px}.prose p{margin:0 0 14px}.prose ul,.prose ol{padding-left:22px;margin:0 0 14px}.prose li{margin:4px 0}.prose blockquote{margin:14px 0;padding:12px 16px;background:var(--slate-tint);border-left:3px solid var(--slate);border-radius:0 8px 8px 0;font-size:15px}.prose blockquote cite{display:block;font-style:normal;font-size:12.5px;color:var(--muted);margin-top:6px}.prose table{width:100%;border-collapse:collapse;font-size:14.5px;margin:8px 0 18px;display:block;overflow-x:auto}.prose th,.prose td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}.prose th{background:var(--paper-2);font-weight:600;font-size:13px}.prose .calc{font-family:var(--mono);font-size:14px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:0 0 14px;overflow-x:auto;white-space:pre-wrap}.prose .srcs{font-size:13.5px;color:var(--ink-2);border-top:1px solid var(--line);padding-top:14px;margin-top:28px}.meta-line{font-size:13px;color:var(--muted);margin-top:12px}.aside{display:grid;gap:14px;align-self:start;position:sticky;top:84px}.aside .card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow-1)}.aside h3{font-size:15px}.aside p{font-size:13.5px;color:var(--ink-2);margin:6px 0 12px}.list{display:grid;gap:14px;padding-bottom:56px}.list a.item{display:block;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}.list a.item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}.list .item h2{font-size:19px}.list .item p{color:var(--ink-2);font-size:14.5px;margin-top:8px}.list .item .meta-line{margin-top:10px}.about{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;padding-bottom:56px}.about section{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-1)}.about h2{font-size:18px}.about p,.about li{font-size:14.5px;color:var(--ink-2)}.about p{margin-top:8px}.about ul{padding-left:20px;margin:8px 0 0}.nf{padding:72px 0;text-align:center;display:grid;justify-items:center;gap:14px}.nf .punch-mini{display:grid;grid-template-columns:repeat(6,18px);gap:4px}.nf .punch-mini i{height:18px;border-radius:3px;border:1px solid var(--line-2)}.nf .punch-mini i.on{background:var(--slate);border-color:var(--slate)}.nf h1{font-size:30px}.nf p{color:var(--ink-2)}.nf .actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.support{margin:8px 0 48px;display:flex;gap:20px;align-items:center;justify-content:space-between;padding:18px 22px;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}.support p{font-size:13.5px;color:var(--ink-2);max-width:52em}.footer{background:var(--ink);color:#ffffffb8;padding:28px 0;font-size:13.5px}.footer .shell{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.footer b{color:#fff;font-weight:600}.footer nav{display:flex;gap:16px;flex-wrap:wrap}.footer a{color:#fffc;text-decoration:none}.footer a:hover{color:#fff}.reveal{opacity:1}.js .reveal{opacity:0;transform:translateY(10px);transition:opacity .6s var(--ease),transform .6s var(--ease)}.js .reveal.in{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}.js .reveal{opacity:1;transform:none}}@media(max-width:960px){.desk,.rules-grid,.article-grid{grid-template-columns:1fr}.toc,.aside{position:static}.toc{display:none}.trio,.bounds{grid-template-columns:1fr}}@media(max-width:720px){.mast .shell{flex-wrap:wrap;gap:4px 12px;padding:8px 0;min-height:0}.nav{width:100%;overflow-x:auto;margin:0 -4px}.nav a{padding:6px 10px;font-size:14px}.wordmark small{display:none}.hero{padding-top:28px}.faq,.about,.pair{grid-template-columns:1fr}.form,.badge-top{padding-inline:18px}.card-res{padding:20px 16px}.punch{padding:8px}.prow{grid-template-columns:20px 1fr;gap:6px}.pcells{gap:2px}.c{height:14px}.support{flex-direction:column;align-items:flex-start}.matrix thead,.wage-table thead{display:none}.wage-table,.wage-table tbody,.wage-table tr,.wage-table td{display:block;width:100%}.wage-table tr{border-bottom:1px solid var(--line);padding:8px 0}.wage-table td{border:0;padding:3px 12px}.prose table{font-size:13.5px}.matrix,.matrix tbody,.matrix tr,.matrix td{display:block;width:100%}.matrix tr{border-bottom:1px solid var(--line);padding:10px 0}.matrix td{border:0;padding:2px 14px}}
