:root{--ink:#202935;--muted:#566372;--accent:#245b97;--canvas:#eef1f5;--paper:#fff;--surface:#fff;--card:#f5f7fa;--line:#d1d9e3;--tint:#f4f7fb;color:var(--ink);background:var(--canvas);color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.75}*{box-sizing:border-box}body{margin:0}a{color:var(--accent);text-underline-offset:.2em}a:hover{text-decoration:underline}button,input,select{font:inherit}button,summary{cursor:pointer}button,a,input,summary,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}h1,h2,h3{letter-spacing:-.025em;line-height:1.35}h1{margin:.35em 0 .6em;font-size:clamp(1.8rem,3vw,2.6rem)}h2{margin:0 0 .6em;font-size:1.5rem}h3{margin:0 0 .6em;font-size:1.15rem}p{margin:0 0 1em}p:last-child{margin-bottom:0}.meta,.eyebrow{color:var(--muted);font-size:.875rem}.eyebrow{letter-spacing:.03em;margin:0 0 .7em}.skip{z-index:20;background:#fff;padding:12px;position:fixed;top:-100px;left:16px}.skip:focus{top:8px}.site-layout{grid-template-columns:220px minmax(0,1fr);max-width:1680px;min-height:100vh;margin:auto;display:grid}.site-rail{background:var(--paper);border-right:1px solid var(--line);flex-direction:column;grid-row:1/3;gap:26px;height:100vh;padding:28px 20px;display:flex;position:sticky;top:0;overflow:auto}.brand{color:var(--ink);align-items:center;gap:12px;font-size:1.05rem;font-weight:700;text-decoration:none;display:flex}.brand-mark{color:#fff;background:#26384e;border-radius:8px;flex-shrink:0;place-items:center;width:38px;height:38px;display:grid}.brand-second{display:block}.nav-menu>summary{min-height:44px;padding:9px 12px}.nav-menu nav{flex-direction:column;gap:4px;display:flex}.nav-menu nav a{min-height:44px;color:var(--ink);border-radius:6px;padding:8px 14px;text-decoration:none}.nav-menu nav a:hover{background:var(--tint)}.nav-menu nav a[aria-current=page]{color:#fff;background:#273c56}.rail-note{color:var(--muted);border-top:1px solid var(--line);margin-top:auto;padding:16px 10px 0;font-size:.875rem}main{outline:none;width:100%;min-width:0;max-width:1180px;padding:36px}.welcome,.page-intro{max-width:850px;margin-bottom:28px}.welcome{padding:8px 0 16px}.welcome>p:not(.eyebrow),.page-intro>p:not(.eyebrow){color:var(--muted)}.welcome>p{max-width:44rem}.section{background:var(--paper);border:1px solid var(--line);border-radius:10px;margin-bottom:28px;padding:28px}.section-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px;padding-bottom:18px;display:flex}.section-head h2{margin:0}.section-head p{color:var(--muted);margin:8px 0 0}.section-head>a{white-space:nowrap;font-size:.9rem}.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.resource-card{border:1px solid var(--line);background:var(--paper);border-radius:7px;min-width:0;padding:20px}.resource-card h3 a,.route-card a,.more-grid h3 a{text-decoration:none}.resource-card>p:not(.eyebrow){color:var(--muted)}.route-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.route-card{background:var(--tint);border:1px solid var(--line);border-radius:7px;min-width:0;padding:20px}.route-card>p:not(.eyebrow){color:var(--muted);font-size:.95rem}.route-card ul{margin:16px 0 0;padding:0;list-style:none}.route-card li{border-top:1px solid var(--line);padding:12px 0}.route-card li>a{min-height:32px;display:block}.route-card .meta{display:block}.more-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.more-grid p{color:var(--muted)}.community{border:1px solid var(--line);background:var(--paper);border-left:5px solid #536c8b;border-radius:7px;padding:28px}.button,button{border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:6px;min-height:44px;padding:9px 16px;text-decoration:none;display:inline-block}.secondary{color:var(--accent);background:#fff}.site-footer{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;grid-column:2;gap:28px;margin:0 36px;padding:24px 0;font-size:.875rem;display:flex}.site-footer p{margin:.4rem 0}.reading-layout{max-width:820px}.prose{background:var(--paper);border:1px solid var(--line);overflow-wrap:anywhere;border-radius:9px;padding:30px;font-size:1.0625rem;line-height:1.9}.prose h2{margin-top:2rem;padding-top:.4rem;font-size:1.4rem}.prose h2:first-child{margin-top:0}.prose h3{margin-top:1.5rem}.prose p,.prose ul,.prose ol{margin:.8em 0}.prose li{margin:.5em 0}.prose pre{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;background:var(--tint);border:1px solid var(--line);border-radius:6px;max-width:100%;padding:18px;font-size:.95rem;line-height:1.8}.prose pre code{white-space:pre-wrap}.prose code{overflow-wrap:anywhere}.prose table{border-collapse:collapse;width:100%;font-size:.95rem}.prose th,.prose td{border:1px solid var(--line);vertical-align:top;text-align:left;padding:8px}.table-wrap{max-width:100%;overflow:auto}.cell-label{display:none}.prose a{overflow-wrap:anywhere}.prose details,.toc,.notice{border:1px solid var(--line);background:var(--tint);border-radius:7px;margin:18px 0;padding:18px}.toc{background:#fff;margin-top:0}.toc summary,summary{min-height:44px;padding:8px 0}.toc a{padding:6px 0;display:inline-block}.copy-button{font-size:.875rem}.copy-status{color:var(--muted);font-size:.875rem}.numbered-list{padding-left:0;list-style:none}.case-note+.case-note{border-top:1px solid var(--line);margin-top:24px;padding-top:20px}.path-nav{flex-wrap:wrap;gap:14px;display:flex}.result{border:1px solid var(--line);background:#fff;border-radius:7px;margin-bottom:16px;padding:20px}.result h2{font-size:1.2rem}.search-controls{border:1px solid var(--line);background:#fff;border-radius:8px;flex-wrap:wrap;align-items:end;gap:16px;margin:20px 0;padding:20px;display:flex}.field{gap:6px;min-width:0;display:grid}.field:first-child{flex:1}.field input,.field select{background:#fff;border:1px solid #8493a5;border-radius:5px;width:100%;min-height:44px;padding:10px}.search-status{color:var(--muted)}.endpoint-list{gap:12px;display:grid}.endpoint-list a{border-bottom:1px solid var(--line);overflow-wrap:anywhere;justify-content:space-between;gap:16px;padding:14px 0;display:flex}.endpoint-list code{font-size:.875rem}.api-results{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.api-results button{background:var(--tint);color:var(--ink);border-color:var(--line);text-align:left}.api-results button[aria-pressed=true]{outline:2px solid var(--accent)}#detail-content{white-space:pre-wrap;overflow-wrap:anywhere;max-height:30rem;font-size:.9rem;overflow:auto}.learning-main{max-width:900px}.wrap{width:100%}.reading-toc{display:none}.mobile-toc{margin:20px 0}.tutorial-brief{border:1px solid var(--line);background:#fff;border-radius:7px;margin:20px 0;padding:20px}.action-row{flex-wrap:wrap;gap:12px;margin:12px 0;display:flex}.article-end{flex-wrap:wrap;gap:20px;margin:24px 0;display:flex}.mobile-toc nav{gap:12px;display:grid}.meta-line,.breadcrumb{color:var(--muted);font-size:.875rem}[id]{scroll-margin-top:1rem}@media (width>=761px){.nav-menu>summary{display:none}.nav-menu:not([open])>nav{display:flex}}@media (width<=1150px){.site-layout{grid-template-columns:190px minmax(0,1fr)}.site-rail{padding:24px 16px}main{padding:28px 24px}.route-grid{grid-template-columns:1fr}}@media (width<=760px){.site-layout{display:block}.site-rail{border-right:0;border-bottom:1px solid var(--line);gap:14px;height:auto;padding:18px 20px;position:static}.brand-second{display:inline}.nav-menu>summary{border:1px solid var(--line);border-radius:6px}.nav-menu nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;margin-top:10px;display:grid}.rail-note{display:none}main{padding:24px 16px 30px}.section{margin-bottom:22px;padding:22px 18px}.section-head{flex-wrap:wrap;align-items:flex-start}.resource-grid,.more-grid{grid-template-columns:1fr}.more-grid article+article{border-top:1px solid var(--line);padding-top:22px}.prose{padding:22px 18px;font-size:1rem}.site-footer{margin:0 18px;display:block}.site-footer>div+div{margin-top:18px}.endpoint-list a{flex-direction:column;gap:4px}.api-results{grid-template-columns:1fr}.community{padding:22px}.field{width:100%}.prose th,.prose td{padding:6px;font-size:.85rem}.prose table{table-layout:fixed}.prose td,.prose th{overflow-wrap:anywhere}}
