:root{--color-bg: #ffffff;--color-bg-secondary: #f8f9fa;--color-text: #1f2329;--color-text-secondary: #646a73;--color-text-tertiary: #8f959e;--color-accent: #1456f0;--color-accent-hover: #336df4;--color-accent-bg: rgba(20, 86, 240, .1);--color-border: #dee0e3;--color-nav-bg: #ffffff;--heading-weight: 500;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}html.platform-windows{--heading-weight: 600}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-padding-top:4.5rem}body{min-height:100vh;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);position:relative;overflow-x:hidden;-webkit-text-size-adjust:100%;text-size-adjust:100%}.site-nav{position:fixed;top:0;left:0;right:0;z-index:100;height:3.5rem;background:var(--color-nav-bg);border-bottom:1px solid var(--color-border)}.nav-inner{max-width:80rem;margin:0 auto;height:100%;display:flex;align-items:center;gap:4rem;padding:0 2rem}.site-logo{display:inline-flex;align-items:center;gap:.5rem;font-size:1.35rem;font-weight:700;text-decoration:none;color:var(--color-text);letter-spacing:-.02em;flex-shrink:0}.site-logo-icon{height:1.15em;width:auto;flex-shrink:0}.nav-top{display:flex;align-items:center;gap:.25rem;flex:1}.nav-top-item{position:relative;display:inline-flex;align-items:center}.nav-top-item:last-child{margin-left:auto}.nav-top-link{display:inline-flex;align-items:center;padding:0 .75rem;height:3.5rem;font-size:1.05rem;font-weight:500;color:var(--color-text-secondary);text-decoration:none;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}.nav-top-link:hover{color:var(--color-accent)}.nav-top-link.is-active{color:var(--color-accent);border-bottom-color:var(--color-accent)}.nav-top-link--button{background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;font-family:inherit;font-size:inherit;-webkit-tap-highlight-color:transparent}.nav-top-toggle{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:1.75rem;height:2.25rem;padding:4px 5px;background:none;border:none;cursor:pointer;border-radius:.375rem;-webkit-tap-highlight-color:transparent}.nav-top-toggle:active{background:var(--color-accent-bg)}.nav-top-arrow{display:block;width:10px;height:10px;margin:0 auto;border-right:2px solid var(--color-text-secondary);border-bottom:2px solid var(--color-text-secondary);transform:rotate(45deg);transition:transform .2s ease;position:relative;top:-2px;left:-3px}.nav-top-inline-arrow{display:none}.nav-top-inline-arrow.spin{animation:inline-arrow-spin .6s ease}@keyframes inline-arrow-spin{0%{transform:rotate(45deg)}to{transform:rotate(405deg)}}.nav-top-item.is-open .nav-top-arrow{transform:rotate(225deg)}.nav-top-panel{position:absolute;top:calc(100% + .5rem);left:0;min-width:10rem;max-width:min(20rem,calc(100vw - 1rem));display:flex;flex-direction:column;gap:.25rem;padding:.5rem;background:var(--color-nav-bg);border:1px solid var(--color-border);border-radius:.75rem;box-shadow:0 8px 24px #0000001f;visibility:hidden;opacity:0;transform:translateY(-4px);transition:opacity .18s ease,transform .18s ease,visibility .18s}.nav-top-panel.is-open{visibility:visible;opacity:1;transform:translateY(0)}.nav-top-item:last-child .nav-top-panel{left:auto;right:0}.nav-top-sub{display:block;padding:.6rem .75rem;font-size:.95rem;font-weight:500;color:var(--color-text-secondary);text-decoration:none;border-radius:.5rem;white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis;transition:color .15s,background .15s}.nav-top-sub:hover,.nav-top-sub.is-active{color:var(--color-accent);background:var(--color-accent-bg)}@media(min-width:50rem){.nav-top-item--robot .nav-top-toggle{display:none}.nav-top-item--robot .nav-top-inline-arrow{display:block;width:10px;height:10px;flex-shrink:0;margin:0 .25rem;border-top:2px solid var(--color-text-secondary);border-right:2px solid var(--color-text-secondary);transform:rotate(45deg)}.nav-top-item--robot .nav-top-panel{position:static;display:flex;flex-direction:row;align-items:stretch;visibility:visible;opacity:1;transform:none;background:none;border:none;box-shadow:none;padding:0;min-width:0;max-width:none}.nav-top-item--robot .nav-top-sub{display:inline-flex;align-items:center;height:3.5rem;padding:0 .75rem;font-size:.95rem;border-bottom:2px solid transparent;border-radius:0}.nav-top-item--robot .nav-top-sub:hover{color:var(--color-accent);background:none}.nav-top-item--robot .nav-top-sub.is-active{color:var(--color-accent);background:none;border-bottom-color:var(--color-accent)}}.main-wrapper{min-height:100vh;padding-top:3.5rem}.layout-container{max-width:80rem;margin:0 auto;display:flex;min-height:calc(100vh - 3.5rem)}.doc-sidebar{flex-shrink:0;width:15.75rem;padding:1rem;background:var(--color-bg-secondary);border-right:1px solid var(--color-border);position:sticky;top:3.5rem;height:calc(100vh - 3.5rem);overflow-y:auto}.content-area{flex:1;min-width:0}.site-footer{text-align:center;padding:2rem;color:var(--color-text-tertiary);font-size:.8rem}@media(max-width:860px){.layout-container{flex-direction:column}.nav-inner{padding:0 1rem;gap:2rem}.nav-top-link{padding:0 .5rem;font-size:1rem}.doc-sidebar{display:none}}@media(max-width:480px){.nav-inner{padding:0 .5rem;gap:1.25rem}.site-logo{font-size:1rem}}