:root{color-scheme:light;--accent:var(--po-accent);--ink:var(--po-ink);--canvas:var(--po-canvas);--soft:var(--po-soft,color-mix(in srgb,var(--canvas) 82%,var(--accent)));--radius:var(--po-radius);--font:var(--po-font-body,-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif);--surface:#fff;--line:#D6DDD8;--muted:#525F59;--error:#842C2C;--shadow:0 .5rem 1.5rem #1829210D }*{box-sizing:border-box}html,body{background-color:var(--canvas);color:var(--ink)}html{scroll-padding-top:2rem}body{margin:0;font-family:var(--font);font-size:1rem;line-height:1.75;font-kerning:normal}a{color:var(--accent);text-underline-offset:.2em;overflow-wrap:anywhere}a:hover{text-decoration-thickness:.12em}a,button,input,select,summary{transition:background-color .18s ease,color .18s ease,box-shadow .18s ease}:focus-visible{outline:3px solid 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label{display:block;font-weight:500;margin-bottom:.5rem}.tool fieldset{margin:0 0 1.5rem;min-width:0;border:0;padding:0}.tool legend{font-size:1.125rem;font-weight:600;padding:0;margin-bottom:1rem;max-width:100%;white-space:normal}.field{margin-bottom:1rem;min-width:0}.field-grid{display:grid;gap:1rem}.record-row{display:grid;gap:.75rem;padding-block:1rem;border-bottom:1px solid var(--line)}.record-row label{font-weight:400}.record-row select{align-self:start}.result{white-space:pre-wrap;overflow-wrap:anywhere;padding:1.5rem;background:var(--soft);border-radius:var(--radius);margin-top:1rem;min-height:7rem;scroll-margin:1rem;font-variant-numeric:tabular-nums}.result[data-state=error]{color:var(--error);background:#fbefef}.limit{color:var(--muted);font-size:1rem;margin-top:1rem}.source-line{margin-top:1.5rem}.source-line a{display:inline-block;padding-block:.5rem}.guide-list{list-style:none;padding:0}.guide-list li{border-bottom:1px solid var(--line);padding-block:1rem}.guide-list a{display:block;min-height:2.75rem;font-size:1.125rem;font-weight:500}.empty{padding:1.5rem;background:var(--soft);border-radius:var(--radius)}.prose{max-width:72ch}.prose h2{margin-top:2.5rem}.prose img{max-width:100%;height:auto;border-radius:var(--radius)}.prose table{display:block;max-width:100%;overflow-x:auto}.prose pre{max-width:100%;overflow:auto}.prose blockquote{margin:1.5rem 0;padding:1rem;background:var(--soft)}details{margin-block:1rem}summary{cursor:pointer;min-height:2.75rem;padding:.75rem 0;font-weight:500}pre{max-width:100%}[hidden]{display:none!important}@media(min-width:45rem){.field-grid{grid-template-columns:1fr 1fr}.record-row{grid-template-columns:minmax(0,1fr) 10rem}}@media(min-width:60rem){h1{font-size:2.75rem}.tool{padding:2rem}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}.po-cover{background:var(--soft);padding-block:1.5rem}.po-wordmark{display:flex;flex-wrap:wrap;gap:1.5rem;align-items:baseline}.po-cover .navigation a{border-radius:2rem}.po-folder{padding-block:3rem}.po-hero,.po-records{display:grid;gap:2rem}.po-tab{font-weight:500;border-bottom:1px solid var(--line);padding-bottom:1rem}.po-evidence{padding-block:1.5rem;border-bottom:1px solid var(--line)}@media(min-width:60rem){.po-hero{grid-template-columns:1fr minmax(0,1.15fr)}.po-records{grid-template-columns:1fr 1fr}}.po-hero{display:grid;gap:2rem;padding-block:1rem 2rem}.po-index{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem}.po-index ul{list-style:none;padding:0;margin:0 0 1rem}.po-index li{display:flex;justify-content:space-between;gap:1rem;border-bottom:1px dashed var(--line);padding:.4rem 0}.po-grid{display:grid;gap:1.25rem}.po-grid article{border:1px solid var(--line);background:var(--surface);padding:1.25rem;border-radius:var(--radius)}.po-grid ul{padding-left:1.1rem;margin:0}.po-countries,.po-all,.po-note{padding-block:2rem}.po-cards{display:grid;gap:1rem;margin-bottom:2rem}.po-route{border:1px solid var(--line);border-left:5px solid var(--accent);background:var(--surface);padding:1.25rem;border-radius:var(--radius);min-width:0}.po-route h3{margin-bottom:.25rem}.po-tag{font-size:.875rem;color:var(--accent);margin:0 0 .25rem;letter-spacing:.06em}.po-route dl{display:grid;grid-template-columns:1fr;gap:.25rem .75rem;margin:1rem 0}.po-route dt{font-weight:600;font-size:.9rem;color:var(--muted)}.po-route dd{margin:0 0 .5rem}.po-route details{margin:.5rem 0}.po-src{font-size:.875rem;color:var(--muted);margin:.5rem 0 0}.po-checklist fieldset{border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.25rem;margin:1rem 0;min-width:0}.po-checklist legend{font-weight:600;padding:0 .25rem}.po-checklist label{display:flex;gap:.6rem;align-items:flex-start;padding:.25rem 0}.po-checklist input[type=checkbox]{width:1.15rem;height:1.15rem;min-height:0;min-width:0;padding:0;margin:.4rem 0 0;flex:none;accent-color:var(--accent)}.po-checklist label span{flex:1;min-width:0}.po-consult{display:flex;flex-wrap:wrap;gap:1rem 2rem;align-items:center;justify-content:space-between;background:var(--soft,#efe6de);padding:1.5rem;border-radius:var(--radius);margin-block:2rem}.po-consult h2{font-size:1.25rem}.po-consult p{margin:0}@media(min-width:48rem){.po-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.po-route dl{grid-template-columns:8rem 1fr}}@media(min-width:60rem){.po-hero{grid-template-columns:1.4fr 1fr;align-items:start}}