:root{--paper:#f8f8f5;--paper-2:#fff;--ink:#14161b;--ink-2:#434852;--ink-3:#5c6270;--rule:#d8d6ce;--rule-2:#b9b7ae;--wash:#eae8e1;--accent:#062d92;--accent-wash:#e6ebf7;--warn:#9a3d1b;--warn-wash:#f7ece5;--display:"Newsreader","Iowan Old Style",Georgia,serif;--body:"Geist",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"Geist Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;--side:276px;--measure:42rem;--gap:40px;--rail:200px;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#0f1115;--paper-2:#171a21;--ink:#e7e8eb;--ink-2:#b0b5bf;--ink-3:#8c929e;--rule:#2e333c;--rule-2:#4a505b;--wash:#1d2028;--accent:#93aaf2;--accent-wash:#16224a;--warn:#f0a27e;--warn-wash:#28190f;color-scheme:dark}}:root[data-theme=dark]{--paper:#0f1115;--paper-2:#171a21;--ink:#e7e8eb;--ink-2:#b0b5bf;--ink-3:#8c929e;--rule:#2e333c;--rule-2:#4a505b;--wash:#1d2028;--accent:#93aaf2;--accent-wash:#16224a;--warn:#f0a27e;--warn-wash:#28190f;color-scheme:dark}[hidden]{display:none!important}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}html,body{margin:0}body{background:var(--paper);color:var(--ink);font-family:var(--body);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:16px;line-height:1.65}a{color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}button{font:inherit;color:inherit}kbd{font-family:var(--mono);border:1px solid var(--rule-2);color:var(--ink-3);background:var(--paper);border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-size:11px}code{font-family:var(--mono);background:var(--wash);overflow-wrap:anywhere;border-radius:4px;padding:1px 5px;font-size:.86em}strong,b{font-weight:600}.sr-only,.body .sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip{z-index:80;background:var(--paper-2);border:1px solid var(--rule);border-radius:7px;padding:8px 12px;font-size:14px;position:absolute;top:-60px;left:12px}.skip:focus{top:12px}.app{grid-template-columns:var(--side) minmax(0,1fr);min-height:100vh;display:grid}.sidebar{border-right:1px solid var(--rule);background:var(--paper);height:100vh;padding:0 16px 32px;position:sticky;top:0;overflow-y:auto}.side-head{z-index:1;background:var(--paper);margin:0 -16px 6px;padding:24px 16px 10px;position:sticky;top:0}.nav-sec a{scroll-margin-top:130px}.brand{align-items:center;gap:10px;margin:0 8px 18px;text-decoration:none;display:flex}.brand img{flex:none;width:30px;height:30px}.brand b{font-family:var(--display);letter-spacing:-.01em;font-size:22px;font-weight:500;line-height:1.1;display:block}.brand span{color:var(--ink-3);font-size:13px}.side-search{border:1px solid var(--rule-2);background:var(--paper-2);width:100%;color:var(--ink-3);cursor:pointer;text-align:left;border-radius:8px;align-items:center;gap:8px;padding:8px 10px;font-size:14px;display:flex}.side-search span{flex:1}.nav-sec{margin-top:26px}.nav-sec h4{color:var(--ink);margin:0 8px 4px;font-size:13px;font-weight:600}.nav-sec a{min-height:36px;color:var(--ink-2);border-radius:6px;align-items:center;gap:10px;padding:5px 8px;font-size:14px;line-height:1.35;text-decoration:none;display:flex}.nav-sec a:hover{background:var(--wash);color:var(--ink)}.nav-sec h4~a{padding-left:20px}.nav-sec a[aria-current=page]{background:var(--wash);color:var(--ink);font-weight:600}.topbar{z-index:5;background:color-mix(in srgb,var(--paper) 90%,transparent);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--rule);align-items:center;gap:12px;min-height:52px;padding:10px clamp(16px,4vw,56px);display:flex;position:sticky;top:0}.crumb{color:var(--ink-3);white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;font-size:13px;overflow:hidden}.crumb b{color:var(--ink-2);font-weight:500}@media (hover:none){.kbd-k{display:none}}@media (width<=520px){.crumb-sec{display:none}}.tb-right{flex:none;align-items:center;gap:8px;display:flex}.tb-btn{border:1px solid var(--rule-2);background:var(--paper-2);min-height:36px;color:var(--ink-2);cursor:pointer;white-space:nowrap;border-radius:7px;align-items:center;gap:8px;padding:6px 10px;font-size:13px;display:inline-flex}.tb-btn:hover{color:var(--ink);border-color:var(--ink-3)}.tb-btn[aria-pressed=true]{background:var(--accent-wash);color:var(--accent);border-color:var(--accent)}.menu-btn,.nav-close{display:none}main{min-width:0;padding:48px clamp(16px,4vw,56px) 96px}main:focus{outline:none}.tag{border:1px solid var(--rule);color:var(--ink-2);white-space:nowrap;border-radius:4px;padding:1px 7px;font-size:12px;font-weight:500}.tag.on{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 45%,transparent);background:var(--accent-wash)}.k{color:var(--ink-3);margin-bottom:6px;font-size:13px;font-weight:600;display:block}.page{max-width:var(--measure);margin-inline:auto}.site-foot{max-width:var(--measure);color:var(--ink-3);flex-wrap:wrap;gap:6px 18px;margin:72px auto 0;font-size:13px;display:flex}.site-foot a{color:inherit}.site-foot a:hover{color:var(--accent)}.rail{display:none}.mobile-toc{border-bottom:1px solid var(--rule);margin-top:20px;padding-bottom:12px;font-size:14px}.mobile-toc summary{cursor:pointer;color:var(--ink-2);font-weight:500}.mobile-toc ol{padding-left:20px}.mobile-toc li{margin:8px 0}.mobile-toc a{color:var(--accent);text-underline-offset:3px}@media (width>=1280px){.mobile-toc{display:none}.page.has-rail{grid-template-columns:minmax(0,var(--measure)) var(--rail);column-gap:var(--gap);max-width:calc(var(--measure) + var(--gap) + var(--rail));display:grid}.page.has-rail>:not(.rail){grid-column:1}main:has(.page.has-rail) .site-foot{max-width:calc(var(--measure) + var(--gap) + var(--rail));padding-right:calc(var(--gap) + var(--rail))}.rail{grid-area:1/2/span 3;display:block}}.rail nav{max-height:calc(100vh - 110px);padding-top:6px;position:sticky;top:84px;overflow-y:auto}.rail h2{color:var(--ink-3);margin:0 0 8px;font-size:13px;font-weight:600}.rail ol{margin:0;padding:0;list-style:none}.rail a{color:var(--ink-3);text-wrap:pretty;padding:5px 0;font-size:14px;line-height:1.4;text-decoration:none;display:block}.rail a:hover{color:var(--ink)}.rail a[aria-current]{color:var(--ink);font-weight:600}h1.title{font-family:var(--display);letter-spacing:-.02em;text-wrap:balance;overflow-wrap:break-word;max-width:19ch;margin:0 0 14px;font-size:clamp(34px,4.8vw,54px);font-weight:400;line-height:1.05}h1.title:focus{outline:none}.deck{font-family:var(--display);color:var(--ink-2);max-width:var(--measure);text-wrap:pretty;margin:0 0 24px;font-size:clamp(19px,2.1vw,23px);font-style:italic;line-height:1.42}.meta{color:var(--ink-3);border-bottom:1px solid var(--rule);max-width:var(--measure);flex-wrap:wrap;align-items:center;gap:6px 20px;padding:0 0 14px;font-size:13px;display:flex}.meta b{color:var(--ink-3);font-weight:400}.meta a{color:var(--accent);text-decoration:none}.meta a:hover{text-decoration:underline}.body{max-width:var(--measure);min-width:0;container-type:inline-size}.page>header,.pager{min-width:0}.body h2[id],.body h3[id],.body [data-requirement]{scroll-margin-top:84px}.body .block{display:flow-root}.body h2{font-family:var(--display);letter-spacing:-.012em;text-wrap:balance;margin:52px 0 12px;font-size:clamp(26px,2.3vw,30px);font-weight:500;line-height:1.2;position:relative}.body h2 .anchor{font-family:var(--mono);color:var(--ink-3);opacity:0;margin-left:10px;font-size:16px;text-decoration:none;transition:opacity .15s}.body h2:hover .anchor,.body h2 .anchor:focus-visible{opacity:1}.body h3{margin:28px 0 10px;font-size:19px;font-weight:600;line-height:1.4}.body p{text-wrap:pretty;margin:0 0 14px}.body>p:first-child{margin-top:28px}.body a{color:var(--accent)}.body .intro{color:var(--ink-3);margin-bottom:6px;font-size:14px}.sidenote{color:var(--ink-2);margin:4px 0 16px;font-size:14px;line-height:1.6}.sidenote p{margin:0 0 8px}.sidenote p:last-child{margin-bottom:0}.sidenote a{color:var(--accent)}h2+.sidenote{margin-top:6px}.caution{background:var(--warn-wash);color:var(--ink);border-radius:7px;padding:8px 12px;font-size:14px;line-height:1.5;margin:9px 0 0!important}.caution b{color:var(--warn);margin-right:6px;font-weight:600}ul.plain{margin:12px 0;padding:0;list-style:none}ul.plain>li{padding:6px 0 6px 22px;position:relative}ul.plain>li:before{content:"";background:var(--ink-3);width:9px;height:1px;position:absolute;top:17px;left:2px}ol.flow{margin:10px 0 20px;padding-left:24px}ol.flow>li{padding:5px 0 5px 6px}ol.flow>li::marker{color:var(--ink-3);font-variant-numeric:tabular-nums}.code-label{color:var(--ink-3);font-size:13px;margin:18px 0 -4px!important}.code{background:var(--wash);border:1px solid var(--rule);border-radius:9px;flex-direction:column;align-items:flex-end;margin:14px 0 18px;display:flex;position:relative;overflow:hidden}.code pre{background:var(--wash);width:100%;font-family:var(--mono);color:var(--ink);border:0;border-radius:0;margin:0;padding:15px 18px;font-size:13px;line-height:1.65;overflow-x:auto}.code pre code{font-size:inherit;overflow-wrap:normal;background:0 0;padding:0}.code pre code.language-text{white-space:pre-wrap;overflow-wrap:anywhere}.code .cm{color:var(--ink-3)}.copy{border:1px solid var(--rule-2);background:var(--paper-2);min-height:32px;color:var(--ink-3);cursor:pointer;border-radius:5px;margin:8px 8px 0;padding:3px 10px;font-size:13px}.copy:hover{color:var(--ink)}textarea.fallback{width:100%;font-family:var(--mono);border:1px solid var(--rule);background:var(--paper-2);min-height:90px;color:var(--ink);border-radius:6px;margin-top:8px;padding:8px;font-size:12px;display:block}.failure{background:var(--warn-wash);clear:both;border-radius:10px;margin:40px 0;padding:20px 22px}.failure .k{color:var(--warn)}.failure h3{font-family:var(--display);margin:4px 0 8px;font-size:23px;font-weight:500;line-height:1.25}.failure p:last-child{margin-bottom:0}.table-scroll:focus-visible,.figure:focus-visible,.code pre:focus-visible{outline-offset:-3px}.table-scroll{border:1px solid var(--rule);overscroll-behavior-x:contain;border-radius:9px;max-width:100%;margin:18px 0 22px;overflow-x:auto}.body table{table-layout:fixed;border-collapse:collapse;width:100%;min-width:560px;margin:0;font-size:14px;line-height:1.6}.body tr:last-child td{border-bottom:0}.body th{font-size:13px}.body td:first-child{font-weight:500}.body th,.body td{text-align:left;vertical-align:top;border-bottom:1px solid var(--rule);overflow-wrap:anywhere;padding:10px 12px}.body th{background:var(--paper-2);font-weight:600}.body td code{white-space:normal;overflow-wrap:anywhere}.body table:not(:has(th:nth-child(3))){min-width:0}.body table:not(:has(th:nth-child(3))) th:first-child{width:32%}.steps{border:1px solid var(--rule);border-radius:10px;grid-template-columns:repeat(4,minmax(0,1fr));margin:14px 0 18px;padding:0;list-style:none;display:grid;overflow:hidden}.steps li{border-right:1px solid var(--rule);background:var(--paper-2);min-width:0;padding:14px 14px 16px}.steps li:last-child{border-right:0}.steps .r{color:var(--ink-3);font-size:13px;display:block}.steps b{font-family:var(--display);margin:2px 0 4px;font-size:19px;font-weight:500;display:block}.steps span.d{color:var(--ink-2);font-size:14px;line-height:1.45;display:block}.diagram{margin:18px 0 22px}.figure{overscroll-behavior-x:contain;border:1px solid var(--rule);background:var(--paper-2);border-radius:10px;max-width:100%;padding:18px 16px 12px;overflow-x:auto}.figure svg{width:100%;height:auto;display:block}.figure:not(.mermaid) svg{min-width:600px}.figure.mermaid svg{min-width:560px;margin:0 auto;max-width:100%!important}.mermaid-source{font-family:var(--mono);color:var(--ink-3);white-space:pre-wrap;margin:0;font-size:12px}.figcap{color:var(--ink-3);margin:8px 0 0;font-size:14px}.d-box{fill:var(--paper);stroke:var(--ink-3);stroke-width:1px}.d-box.end{stroke:var(--accent);stroke-width:1.5px}.d-t{fill:var(--ink);font-family:var(--body);font-size:13.5px;font-weight:500}.d-s{fill:var(--ink-3);font-family:var(--body);font-size:11.5px}.d-a{stroke:var(--ink-3);stroke-width:1px;fill:none}.d-ah{fill:var(--ink-3)}ul.tools{margin:10px 0;padding:0;list-style:none}.tools li{border-top:1px solid var(--rule);grid-template-columns:minmax(120px,170px) minmax(0,1fr) auto;align-items:baseline;gap:14px;padding:9px 0;font-size:14px;display:grid}.tools li:last-child{border-bottom:1px solid var(--rule)}.tools code{color:var(--ink);background:0 0;padding:0}.tools em{color:var(--ink-3);font-size:13px;font-style:normal}.tools a{text-decoration:none}.cover{margin:8px 0 22px;padding:0;list-style:none}.cover li{border-top:1px solid var(--rule);color:var(--ink-2);padding:11px 0 11px 26px;position:relative}.cover li:last-child{border-bottom:1px solid var(--rule)}.cover li:before{content:"○";color:var(--ink-3);font-size:12px;position:absolute;top:11px;left:2px}.log{margin:0;padding:0;list-style:none}.log li{border-top:1px solid var(--rule);grid-template-columns:72px 110px minmax(0,1fr);gap:16px;padding:12px 0;display:grid}.log li:last-child{border-bottom:1px solid var(--rule)}.log .v{font-family:var(--mono);color:var(--accent);font-size:13px}.log .d{font-family:var(--mono);color:var(--ink-3);font-size:13px}.pager{max-width:var(--measure);grid-template-columns:1fr 1fr;gap:14px;margin-top:72px;display:grid}.pager a{border:1px solid var(--rule);background:var(--paper-2);border-radius:10px;min-width:0;padding:14px 16px;text-decoration:none;display:block}.pager a:hover{border-color:var(--ink-3)}.pager a.next{text-align:right;grid-column:2}.pager small{color:var(--ink-3);font-size:13px;display:block}.pager span{font-family:var(--display);font-size:18px}.pager.has-handoff{grid-template-columns:minmax(0,1fr);gap:10px}.pager a.handoff{grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:16px;padding:18px 20px;display:grid}.pager a.handoff:hover{border-color:var(--accent)}.pager a.handoff>*{grid-column:1}.pager a.handoff span{color:var(--accent);font-size:24px;line-height:1.25}.pager a.handoff em{color:var(--ink-2);margin-top:4px;font-size:14px;font-style:normal}.pager a.handoff i{color:var(--accent);grid-area:1/2/span 3;font-size:24px;font-style:normal}.pager a.prev{color:var(--ink-3);background:0 0;border:0;justify-self:start;padding:4px 2px;font-size:14px}.pager a.prev span{font-family:inherit;font-size:inherit}.pager a.prev:hover{color:var(--ink)}.start-note{max-width:var(--measure);color:var(--ink-2);margin:12px 0 0;font-size:14px}.start-note a{color:var(--accent)}.lang-note{max-width:var(--measure);color:var(--ink-2);background:var(--wash);border-radius:8px;margin:18px 0 0;padding:9px 13px;font-size:14px}.lang-note a{color:var(--accent);white-space:nowrap;text-decoration:none}.lang-btn{text-decoration:none}:lang(zh){--display:"Newsreader","Noto Serif SC","Source Han Serif SC","Songti SC",serif;--body:"Geist","PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",ui-sans-serif,sans-serif}:lang(zh) body{line-height:1.8}:lang(zh) .deck,:lang(zh) h1.title,:lang(zh) .body h2{letter-spacing:0}.chips{flex-wrap:wrap;gap:8px;margin-top:6px;display:flex}.chip{border:1px solid var(--rule-2);background:var(--paper-2);color:var(--ink-2);cursor:pointer;text-align:left;border-radius:999px;max-width:100%;padding:8px 14px;font-size:14px;line-height:1.3}.chip:hover{border-color:var(--ink-3);color:var(--ink)}.chip[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.home h1 em{color:var(--accent);font-style:italic}.agent-hint{flex-wrap:wrap;align-items:center;gap:8px;display:inline-flex}.agent-hint code{font-size:12px}.copy-inline{border:1px solid var(--rule-2);background:var(--paper-2);color:var(--ink-2);cursor:pointer;border-radius:5px;padding:2px 9px;font-size:13px}.copy-inline:hover{color:var(--ink);border-color:var(--ink-3)}.rules{margin:0;padding:0;list-style:none}.rule{border-bottom:1px solid var(--rule);padding:26px 0 24px;scroll-margin-top:84px}.rule h3{font-family:var(--display);letter-spacing:-.01em;text-wrap:balance;align-items:baseline;gap:14px;margin:0 0 8px;font-size:clamp(23px,2.2vw,27px);font-weight:500;line-height:1.25;display:flex}.rule .n{width:22px;font-family:var(--body);color:var(--ink-3);font-variant-numeric:tabular-nums;flex:none;font-size:14px;font-weight:500}.rule .rb{padding-left:36px}.rule .rb p{color:var(--ink-2);margin:0 0 8px}.rule a.more{color:var(--accent);font-size:14px;text-decoration:none}.rule a.more:hover{text-decoration:underline}.rule:target{background:var(--wash)}:lang(zh) .rule h3{letter-spacing:0;line-height:1.35}.mark{flex:none;width:30px;height:30px}.mk-a{fill:#062d92}.mk-b{fill:#08d9d6}:root[data-theme=dark] .mk-a{fill:#7c97ee}.icon-btn{padding:6px 8px}.i-sun{display:none}:root[data-theme=dark] .i-sun{display:block}:root[data-theme=dark] .i-moon{display:none}.search{z-index:60;padding:calc(env(safe-area-inset-top,0px) + max(9vh,16px)) 16px 16px;background:#05070b6b;justify-content:center;align-items:flex-start;display:flex;position:fixed;inset:0}.search-box{background:var(--paper-2);border:1px solid var(--rule);border-radius:14px;flex-direction:column;width:min(660px,100%);max-height:72vh;display:flex;overflow:hidden;box-shadow:0 30px 70px -24px #00000073}.search-input{border-bottom:1px solid var(--rule);color:var(--ink-3);align-items:center;gap:12px;padding:12px 12px 12px 18px;display:flex}.search-input input{min-width:0;font:inherit;color:var(--ink);background:0 0;border:0;outline:0;flex:1;padding:4px 0;font-size:17px}.search-close{border:1px solid var(--rule-2);background:var(--paper);color:var(--ink-2);cursor:pointer;border-radius:7px;flex:none;align-items:center;gap:6px;padding:5px 8px;font-size:12px;display:inline-flex}.search-close:hover{color:var(--ink);border-color:var(--ink-3)}.results{margin:0;padding:6px;list-style:none;overflow-y:auto}.res{cursor:pointer;border-radius:9px;padding:10px 12px}.res[aria-selected=true]{background:var(--accent-wash)}.res .s{color:var(--ink-3);flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;display:flex}.res .t{margin:2px 0;font-size:16px;font-weight:500}.res .x{color:var(--ink-2);overflow-wrap:anywhere;font-size:14px;line-height:1.5}.res .tag{padding:0 5px;font-size:11px}mark{background:color-mix(in srgb,var(--accent) 24%,transparent);color:inherit;border-radius:2px;padding:0 1px}.sugg{padding:16px 16px 18px;overflow-y:auto}.sugg p{color:var(--ink-3);margin:0 0 10px;font-size:13px}.sugg .chip{padding:6px 11px;font-size:13px}.search-foot{color:var(--ink-3);border-top:1px solid var(--rule);flex-wrap:wrap;gap:16px;padding:9px 16px;font-size:12px;display:flex}.scrim{z-index:39;background:#05070b66;position:fixed;inset:0}@media (width<=880px){.app{grid-template-columns:minmax(0,1fr)}.sidebar{z-index:40;visibility:hidden;width:min(86vw,320px);height:100%;transition:transform .2s,visibility 0s linear .2s;position:fixed;top:0;bottom:0;left:0;transform:translate(-103%)}.side-head{padding-top:calc(24px + env(safe-area-inset-top,0px))}.nav-open .sidebar{visibility:visible;transition:transform .2s;transform:none;box-shadow:0 0 60px #0000004d}.menu-btn,.nav-close{display:inline-flex}.nav-close{min-height:40px;padding:8px;position:absolute;top:18px;right:12px}.sidebar .brand{margin-right:40px}body.nav-open{overflow:hidden}.sidebar{overscroll-behavior:contain}.topbar .tb-btn,.nav-sec a{min-height:40px}.tb-search-label{display:none}main{padding-top:32px}.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.steps li:nth-child(2){border-right:0}.steps li:nth-child(-n+2){border-bottom:1px solid var(--rule)}}@media (width<=520px){.rule .rb{padding-left:0}.tools li{grid-template-columns:minmax(0,1fr) auto}.tools li .td{grid-area:2/1/auto/-1}.log li{grid-template-columns:72px minmax(0,1fr)}.log li span:last-child{grid-column:1/-1}.pager{grid-template-columns:1fr}.pager a.next{grid-column:1}.steps{grid-template-columns:minmax(0,1fr)}.steps li{border-right:0;border-bottom:1px solid var(--rule)}.steps li:last-child{border-bottom:0}.search-foot{display:none}.topbar{gap:8px;padding-inline:12px}.tb-right{gap:6px}.topbar kbd{display:none}.body h2{text-wrap:pretty;margin-top:40px}.pager{margin-top:48px}.search-box{max-height:calc(100dvh - 32px)}}@media (width<=360px){.tb-right{gap:6px}.tb-btn{padding:6px 8px}.tb-btn kbd{display:none}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media print{.table-scroll{overflow:visible}.body table{min-width:0}.code pre{white-space:pre-wrap}.sidebar,.topbar,.pager,.copy,.search,.scrim{display:none!important}.app{display:block}main{padding:0}.sidenote{float:none;width:auto;margin:4px 0 12px}}.prompt-card{border:1px solid var(--rule);background:var(--paper-2);border-radius:10px;margin:18px 0 24px;overflow:hidden}.prompt-header{border-bottom:1px solid var(--rule);background:var(--paper);flex-wrap:wrap;align-items:center;gap:10px;min-height:46px;padding:7px 8px 7px 16px;display:flex}.prompt-header .k{flex:auto;margin:0}.prompt-copy{margin-left:auto}@media (width<=520px){.prompt-skill .prompt-header .k{flex-basis:100%}}.prompt-copy{min-height:32px;font:inherit;cursor:pointer;border:1px solid var(--rule-2);background:var(--paper-2);color:var(--ink-2);border-radius:6px;padding:3px 10px;font-size:13px}.prompt-copy:hover{color:var(--ink);border-color:var(--ink-3)}.prompt-tabs{border:1px solid var(--rule-2);background:var(--paper);border-radius:7px;display:inline-flex;overflow:hidden}.prompt-tabs button{min-height:30px;font:inherit;cursor:pointer;color:var(--ink-3);background:0 0;border:0;border-radius:0;padding:3px 10px;font-size:13px}.prompt-tabs button+button{border-left:1px solid var(--rule-2)}.prompt-tabs button[aria-selected=true]{background:var(--paper-2);color:var(--ink);font-weight:600}.prompt-panel pre{font:inherit;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--ink);margin:0;padding:14px 18px 16px;font-size:16px;line-height:1.7}.prompt-header .k code{color:var(--ink);background:var(--wash);font-size:12px}.prompt-panel .cmd{font-family:var(--mono);color:var(--ink);background:var(--wash);border-radius:4px;padding:1px 5px;font-size:.9em}.prompt-panel .ph{color:var(--accent);background:var(--accent-wash);border-radius:4px;padding:0 3px}.prompt-panel[hidden]{display:none}.prompt-variant{color:var(--ink-3);padding:10px 18px 0;font-size:13px;font-weight:600;display:block}.prompt-variant[hidden]{display:none}.walkthrough{border:1px solid var(--rule);background:var(--paper-2);border-radius:12px;margin:20px 0 24px;overflow:hidden}.walkthrough .diagram{margin:0}.walkthrough .figure{border:0;border-radius:0;padding:18px 12px 8px}.walkthrough .figcap{margin:0;padding:0 18px 12px}.walkthrough>ol{box-sizing:border-box;border-top:1px solid var(--rule);margin:0!important;padding:14px 20px 16px 40px!important}.walkthrough>ol.step-list{list-style:none;padding:10px 12px 12px!important}.step-list>li{cursor:pointer;border-radius:8px;grid-template-columns:30px minmax(0,1fr);align-items:start;column-gap:10px;display:grid;padding:7px 8px!important}.step-list>li:hover{background:var(--wash)}.step-list>li.is-current{background:var(--accent-wash)}.step-pick{border:1px solid var(--rule-2);background:var(--paper-2);width:26px;height:26px;color:var(--ink);font:600 12.5px var(--body);cursor:pointer;border-radius:50%;place-items:center;margin-top:-1px;transition:background .15s,border-color .15s,color .15s;display:grid}.step-list>li:hover .step-pick{border-color:var(--accent);color:var(--accent)}.step-pick[aria-pressed=true],.step-list>li:hover .step-pick[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--paper-2)}.step-hint{border-top:1px solid var(--rule);min-height:48px;color:var(--ink-3);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 12px;padding:10px 14px 2px 20px;font-size:13px;display:flex}.step-nav{flex-wrap:wrap;gap:6px;display:inline-flex}.step-btn{min-height:32px;font:inherit;border:1px solid var(--rule-2);background:var(--paper-2);color:var(--ink);cursor:pointer;border-radius:6px;padding:3px 11px;font-size:13px}.step-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.step-btn:disabled{color:var(--ink-3);opacity:.55;cursor:default}.timeline-svg .callout{pointer-events:none}.timeline-svg .callout rect{fill:var(--ink)}.timeline-svg .callout text{fill:var(--paper);font:600 13px var(--body);text-anchor:middle;dominant-baseline:central}.walkthrough>.step-hint+ol.step-list{border-top:0}.walkthrough>ol>li[hidden]{display:none}.walkthrough svg [data-step]{transition:opacity .18s}.walkthrough .timeline-future{opacity:.14}.walkthrough .timeline-active .event-dot{stroke-width:4px}.timeline-svg .branch-line.seg{stroke-linecap:butt}.timeline-svg .step-dot{fill:var(--lane-color)}.timeline-svg .step-dot.prod{fill:var(--accent)}.timeline-svg .step-num{fill:var(--paper-2);font:600 12px var(--body);text-anchor:middle;dominant-baseline:central}.timeline-svg .step-cap{fill:var(--ink-3);font:13px var(--body);text-anchor:middle}.walkthrough .timeline-active .step-dot{stroke:var(--ink);stroke-width:2px}.timeline-svg .lane{stroke:var(--rule);stroke-width:1px;stroke-dasharray:3 5}.timeline-svg .branch-line{fill:none;stroke:var(--lane-color,var(--accent));stroke-width:3px;stroke-linecap:round;stroke-linejoin:round}.timeline-svg .event-dot{fill:var(--paper-2);stroke:var(--lane-color,var(--accent));stroke-width:2.5px}.timeline-svg .event-number{fill:var(--ink);font:600 12px var(--body);text-anchor:middle;dominant-baseline:central}.timeline-svg .lane-label{fill:var(--ink-2);font:12px var(--mono)}.timeline-svg .event-label{fill:var(--ink-2);font:12px var(--body);text-anchor:middle}.timeline-svg .time-label{fill:var(--ink-3);font:11px var(--mono)}@media (prefers-reduced-motion:reduce){.walkthrough svg [data-step]{transition:none}}@media print{.step-pick,.step-hint,.timeline-svg .callout{display:none}.walkthrough>ol>li[hidden]{display:list-item}.walkthrough .timeline-future{opacity:1;visibility:visible}}.walkthrough .figure .timeline-svg{min-width:680px}.walkthrough .figure .timeline-svg.compact{min-width:600px}.timeline-svg .lane-label,.timeline-svg .event-label{font-size:14px}.timeline-svg .time-label{font-size:13px}.timeline-svg .story-region{fill:var(--wash)}.timeline-svg .story-heading{fill:var(--ink-2);font:600 14px var(--body)}.timeline-svg .story-badge{fill:var(--paper-2);stroke:var(--rule)}.timeline-svg .story-badge.stop{fill:var(--warn-wash);stroke:var(--warn)}.compare{margin:22px 0 32px}.body .compare>p{margin:0}.compare .lead{color:var(--ink)}.compare-scenario{color:var(--ink-2)}.body .compare>.compare-why{color:var(--ink-2);margin-top:14px}.compare-pair{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:14px;margin-top:14px;display:grid}.compare .prompt-card{margin:0}.compare .prompt-header{min-height:46px}.compare .prompt-bad{border:1px dashed color-mix(in srgb,var(--warn) 50%,var(--rule));background:0 0}.compare .prompt-bad .prompt-header{background:0 0}.compare .prompt-bad .k{color:var(--warn)}.compare .prompt-bad pre{color:var(--ink-2)}.compare .prompt-better{border-color:color-mix(in srgb,var(--accent) 55%,var(--rule))}.compare .prompt-better .k{color:var(--accent)}@container (width<=580px){.compare-pair{grid-template-columns:minmax(0,1fr)}}@media (width<=720px){.compare-pair{grid-template-columns:minmax(0,1fr)}}.body .example{background:var(--wash);border-radius:10px;margin:18px 0 22px;padding:18px 20px}.example figcaption{margin-bottom:12px}.example figcaption .k{margin-bottom:2px}.example p:last-child,.example ul:last-child{margin-bottom:0}.example :not(pre)>code{background:var(--paper-2)}.body li[data-requirement]:target{background:var(--accent-wash)}.body details.reference{border:1px solid var(--rule);color:var(--ink-2);border-radius:8px;margin:16px 0 22px;padding:12px 16px;font-size:14px}.reference summary{cursor:pointer;color:var(--ink);font-weight:500}.reference[open] summary{margin-bottom:14px}.reference>:last-child{margin-bottom:0}@media print{.reference::details-content{display:block}}@media (width<=520px){.body .example{padding:16px 14px}.prompt-copy{min-height:40px}}
