:root{--ink:#1c2227;--sub:#59636e;--line:#e2e5e9;--bg:#fbfbf9;--card:#fff;--accent:#1d6b57;--code:#eef1ee;--pre:#f5f7f5;--mark:#e8f3ef;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--ink:#e3e7ea;--sub:#a2abb5;--line:#2d343b;--bg:#13171b;--card:#1a1f24;--accent:#7fd3b8;--code:#252c33;--pre:#1a2026;--mark:#1d2f2a}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.72 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:var(--card);padding:6px 10px;z-index:9}
.wrap{max-width:740px;margin:0 auto;padding:0 20px}
.site-head{border-bottom:1px solid var(--line);background:var(--card)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:8px 18px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:750;font-size:19px;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.brand svg{flex:none}.brand-sub{font-weight:400;font-size:14px;color:var(--sub);letter-spacing:0}.site-nav a{color:var(--sub);text-decoration:none;font-size:15px;margin-left:18px}.site-nav a:first-child{margin-left:0}.site-nav a:hover{color:var(--ink)}
main{padding-bottom:24px}
h1,h2,h3,h4{line-height:1.28;letter-spacing:-.012em;scroll-margin-top:16px}
h1{font-size:36px;margin:14px 0 12px}h2{font-size:26px;margin:46px 0 12px}h3{font-size:20.5px;margin:30px 0 8px}h4{font-size:18px;margin:24px 0 6px}
p,ul,ol{margin:0 0 18px}li{margin:4px 0}li>p{margin:0}
.crumbs{font-size:14px;color:var(--sub);margin-top:22px}.crumbs a{color:var(--sub)}.crumbs span{margin:0 6px}
.meta{color:var(--sub);font-size:15px;margin:0 0 16px}.meta a{color:inherit}
.pills{margin:0 0 18px;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px}.pills li{margin:0}
.pills a{display:inline-block;font-size:14px;line-height:1.4;padding:4px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--sub);background:var(--card)}
.pills a:hover{color:var(--accent);border-color:var(--accent)}
.toc{background:var(--pre);border:1px solid var(--line);border-radius:10px;padding:16px 20px 8px;margin:6px 0 30px}
.toc-h{font-size:14px;font-weight:700;color:var(--sub);margin:0 0 6px;text-transform:uppercase;letter-spacing:.04em}
.toc ol{padding-left:22px;margin:0 0 8px}.toc li{font-size:16px;line-height:1.5;margin:6px 0}.toc a{text-decoration:none}.toc a:hover{text-decoration:underline}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--code);padding:1px 5px;border-radius:4px;font-size:.86em;overflow-wrap:anywhere}
pre{background:var(--pre);border:1px solid var(--line);padding:14px 16px;border-radius:8px;overflow-x:auto;font-size:14.5px;line-height:1.55;margin:0 0 20px}
pre code{background:none;padding:0;font-size:inherit;overflow-wrap:normal}
pre[data-lang]::before{content:attr(data-lang);display:block;font:600 12px/1 ui-monospace,Menlo,monospace;color:var(--sub);margin-bottom:10px;text-transform:uppercase;letter-spacing:.05em}
blockquote{margin:0 0 20px;padding:12px 18px;border-left:4px solid var(--accent);background:var(--mark);border-radius:0 8px 8px 0}blockquote p{margin:0}
.table-wrap{overflow-x:auto;margin:0 0 22px;border:1px solid var(--line);border-radius:8px;background:var(--card)}
.disclaimer{margin:14px 0 0;padding:9px 12px;border:1px solid var(--line);border-left:4px solid var(--accent);background:var(--card);font-size:14.5px;line-height:1.5;color:var(--sub)}.disclaimer a{color:inherit}
button[data-sort]{font:inherit;font-size:14px;padding:3px 10px;border:1px solid var(--line);border-radius:6px;background:var(--card);color:var(--ink);cursor:pointer}button[data-sort][aria-pressed=true]{border-color:var(--accent);color:var(--accent)}
table{border-collapse:collapse;width:100%;font-size:15.5px;line-height:1.5}
th,td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;min-width:7.5em}
th{background:var(--pre);font-weight:650}td code{white-space:nowrap}tr:last-child td{border-bottom:0}
img{max-width:100%;height:auto}hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.intro{padding:34px 0 8px}.intro h1{margin-top:0}.lede{font-size:19.5px;color:var(--sub);max-width:38em}
.list{list-style:none;padding:0;margin:0 0 12px}.list li{padding:20px 0;border-bottom:1px solid var(--line);margin:0}.list li:last-child{border-bottom:0}
.list h2,.list h3{margin:2px 0 6px;font-size:21px;line-height:1.32}.list h2 a,.list h3 a{color:var(--ink);text-decoration:none}.list h2 a:hover,.list h3 a:hover{color:var(--accent)}
.list p{margin:0;color:var(--sub);font-size:16px;line-height:1.6}.list .when{font-size:14px;margin-bottom:2px}
.related{margin-top:44px;padding-top:6px;border-top:1px solid var(--line)}.related h2{margin-top:26px}
.note{font-size:15px;color:var(--sub);border-top:1px solid var(--line);padding-top:16px;margin-top:36px}
.site-foot{border-top:1px solid var(--line);background:var(--card);color:var(--sub);font-size:14.5px;margin-top:40px}
.site-foot .wrap{padding-top:26px;padding-bottom:34px}.site-foot p{margin:0 0 8px}.site-foot a{color:var(--sub)}
@media (max-width:600px){body{font-size:17px}h1{font-size:28px}h2{font-size:23px}h3{font-size:19px}.lede{font-size:18px}.site-nav a{margin-left:12px;font-size:14.5px}.brand{font-size:18px}.brand-sub{display:none}.toc{padding:14px 16px 6px}}
@media print{.site-head,.site-foot,.toc,.related,.note{display:none}}
/* ui.py(共通の動く部品) */
/* デザインの決まり v2(2026-10-17 design-harness/docs/デザインシステムの研究.md: 押す場所44px・見えるフォーカス枠) */
button,.btn,.ui-menu-btn,.ui-fab button,.ui-fab a,.ui-tablist button{min-height:44px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.pills a,.tags a{min-height:32px;display:inline-flex;align-items:center}
body > header{position:relative;padding-right:120px}body > header .ui-menu-btn{position:absolute;right:16px;top:14px}
@media (max-width:700px){.site-nav,body > header .gnav{display:none}body > header{padding-right:100px}}
.ui-bar{position:fixed;left:0;top:0;height:3px;width:0;background:var(--accent);z-index:30}
.ui-menu-btn{margin-left:auto;align-self:center;font:inherit;font-size:15px;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:8px;padding:6px 12px;cursor:pointer}
.ui-menu-btn:hover{border-color:var(--accent);color:var(--accent)}
.ui-scrim{position:fixed;inset:0;background:rgba(0,0,0,.35);opacity:0;pointer-events:none;transition:opacity .2s;z-index:40}
.ui-drawer{position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);background:var(--card);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .22s ease;z-index:41;overflow-y:auto;padding:18px 20px 40px}
.ui-open .ui-scrim{opacity:1;pointer-events:auto}.ui-open .ui-drawer{transform:none}
.ui-drawer h2{font-size:13px;letter-spacing:.02em;color:var(--sub);margin:22px 0 8px;font-weight:700}
.ui-drawer .ui-x{float:right;font:inherit;font-size:14px;background:none;border:1px solid var(--line);border-radius:8px;padding:4px 10px;cursor:pointer;color:var(--sub)}
.ui-drawer ul,.ui-drawer ol{list-style:none;padding:0;margin:0}.ui-drawer li{margin:0;border-bottom:1px solid var(--line)}
.ui-drawer li a{display:block;padding:10px 4px;text-decoration:none;color:var(--ink);font-size:15.5px;line-height:1.45}
.ui-drawer li a:hover,.ui-drawer li a.on{color:var(--accent)}.ui-drawer li a.on{font-weight:700;border-left:3px solid var(--accent);padding-left:9px}
.ui-fab{position:fixed;right:16px;bottom:18px;z-index:25;display:flex;gap:8px}
.ui-fab button,.ui-fab a{font:inherit;font-size:14.5px;background:var(--card);color:var(--ink);border:1px solid var(--ink);border-radius:999px;padding:9px 16px;cursor:pointer;text-decoration:none}
.ui-fab .ui-next{background:var(--accent);border-color:var(--accent);color:var(--card);display:none}.ui-fab .ui-next.show{display:inline-block}
.ui-fab .ui-top{display:none}.ui-fab .ui-top.show{display:inline-block}
.ui-tabs{margin:8px 0 26px;border:1px solid var(--line);border-radius:10px;background:var(--card)}
.ui-tablist{display:flex;overflow-x:auto;border-bottom:1px solid var(--line);scrollbar-width:none}
.ui-tablist button{flex:none;font:inherit;font-size:15px;background:none;border:0;border-bottom:3px solid transparent;color:var(--sub);padding:12px 16px;cursor:pointer;white-space:nowrap}
.ui-tablist button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--accent);font-weight:700}
.ui-panel{padding:6px 18px 4px}.ui-panel[hidden]{display:none}.ui-panel>h3:first-child{margin-top:12px}
.ui-faq details{border-bottom:1px solid var(--line)}.ui-faq details:first-of-type{border-top:1px solid var(--line)}
.ui-faq summary{cursor:pointer;list-style:none;padding:14px 30px 14px 2px;font-weight:700;position:relative;line-height:1.45}
.ui-faq summary::-webkit-details-marker{display:none}
.ui-faq summary::after{content:"+";position:absolute;right:6px;top:12px;font-weight:400;font-size:20px;color:var(--sub)}
.ui-faq details[open] summary::after{content:"−"}.ui-faq .ui-a{padding:0 2px 8px}
.ui-sum{border:2px solid var(--ink);border-radius:10px;background:var(--card);padding:14px 18px 10px;margin:4px 0 26px}
.ui-sum-h{font-weight:800;font-size:15px;margin:0 0 6px}.ui-sum ul{margin:0 0 8px;padding-left:20px}.ui-sum li{margin:4px 0;font-size:16.5px;line-height:1.55}
.ui-sum-who{font-size:15px;color:var(--sub);margin:0 0 4px;border-top:1px solid var(--line);padding-top:8px}
.table-wrap{max-height:80vh;overflow:auto}.table-wrap thead th{position:sticky;top:0;z-index:1}
.table-wrap td:first-child,.table-wrap th:first-child{position:sticky;left:0;background:var(--card);z-index:1}.table-wrap thead th:first-child{z-index:2;background:var(--pre,var(--card))}
.ui-kicker{margin:28px 0 4px;font-weight:700;color:var(--accent);font-size:15px}.ui-hero{font-size:34px;line-height:1.35;margin:0 0 22px;max-width:22em;text-wrap:balance;word-break:auto-phrase}
@media (max-width:600px){.ui-hero{font-size:26px}}
.ui-cards{display:grid;grid-template-columns:1fr;gap:18px;list-style:none;padding:0}
.ui-cards>li{display:grid;grid-template-columns:200px 1fr;gap:4px 18px;align-items:start;border:1px solid var(--line)!important;border-radius:12px;background:var(--card);padding:14px!important;margin:0}
.ui-cards>li>*{grid-column:2}.ui-cards .ui-thumb-a{grid-column:1;grid-row:1 / span 4}
.ui-cards .ui-thumb{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.ui-cards>li.ui-noimg{grid-template-columns:1fr}.ui-cards>li.ui-noimg>*{grid-column:1}
.ui-cards>li:hover{border-color:var(--accent)!important}
@media (max-width:600px){.ui-cards>li{grid-template-columns:1fr}.ui-cards>li>*,.ui-cards .ui-thumb-a{grid-column:1}.ui-cards .ui-thumb-a{grid-row:auto}}
.ui-side{display:none}
@media (min-width:1240px){.ui-side{display:block;position:fixed;top:96px;left:calc(50% + 400px);width:260px;max-height:calc(100vh - 140px);overflow-y:auto;font-size:14px;border-left:1px solid var(--line);padding-left:14px}
.ui-side p{font-weight:700;color:var(--sub);margin:0 0 6px;font-size:13px}.ui-side ol{list-style:none;padding:0;margin:0}.ui-side li{margin:0}
.ui-side a{display:block;padding:5px 0;color:var(--sub);text-decoration:none;line-height:1.4}.ui-side a:hover,.ui-side a.on{color:var(--accent)}.ui-side a.on{font-weight:700}
.ui-fab button{display:none}}
@media (prefers-reduced-motion:reduce){.ui-drawer,.ui-scrim{transition:none}html{scroll-behavior:auto}}
@media print{.ui-bar,.ui-fab,.ui-drawer,.ui-scrim,.ui-menu-btn{display:none}}