:root{--navy:#142236;--navy-dark:#101c2d;--red:#d52d34;--red-deep:#b9232b;--ink:#192538;--muted:#64748b;--line:#e1e6ed;--bg:#f4f6f9;--teal:#51d0e0;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:94px}body{margin:0;min-height:100vh}body.search-open,body.menu-open{overflow:hidden}a{color:#b9232b}button,input{font:inherit}button{cursor:pointer}svg{stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #51d0e0;outline-offset:2px}.topbar{height:70px;position:sticky;top:0;z-index:20;background:var(--navy);display:flex;align-items:center;gap:18px;padding:0 26px;color:#fff;border-bottom:1px solid #2f4056;box-shadow:0 3px 12px #14223616}.topbrand{text-decoration:none;display:flex;gap:11px;align-items:center;color:white;min-width:250px}.topbrand img{width:36px;height:36px}.topbrand strong{display:block;letter-spacing:.055em;font-size:17px;line-height:1.2}.topbrand small{display:block;color:#a2b4c8;font-size:11px;margin-top:2px}.topbar-right{display:flex;align-items:center;gap:22px;margin-left:auto}.toplink{color:#d9e2ee;text-decoration:none;font-size:13px;white-space:nowrap}.toplink:hover{color:white}.search-trigger{display:flex;gap:12px;align-items:center;min-width:300px;border:1px solid #43526a;background:#21334a;border-radius:9px;padding:9px 12px;color:#cad6e5;font-size:13px;text-align:left}.search-trigger svg,.search-input-wrap svg{width:17px;height:17px;flex-shrink:0}.search-trigger kbd{margin-left:auto;font:11px system-ui;color:#a2b4c8;border:1px solid #66768a;border-radius:4px;padding:2px 5px}.mobile-menu{display:none;background:transparent;color:white;border:0;font-size:23px}.shell{display:grid;grid-template-columns:250px minmax(0,1fr) 235px;max-width:1760px;margin:auto;min-height:calc(100vh - 70px)}.sidebar{position:sticky;top:70px;height:calc(100vh - 70px);overflow-y:auto;align-self:start;background:var(--navy);color:#d9e2ee;padding:25px 16px 15px;border-right:1px solid #28384d}.sidebar-title{display:flex;justify-content:space-between;align-items:center;color:#91a2b8;letter-spacing:.12em;font-weight:800;font-size:11px;padding:0 11px 22px}.sidebar-title span{background:#233b51;color:#acbdd0;padding:4px 7px;border-radius:5px;letter-spacing:0;font-size:10px}.nav-section{margin-bottom:24px}.nav-group{font-weight:800;font-size:10px;letter-spacing:.14em;color:#91a2b8;margin:0 10px 8px}.nav-link{display:block;color:#d9e2ee;text-decoration:none;border-radius:8px;padding:9px 12px;font-size:13px;line-height:1.45;margin:2px 0}.nav-link:hover{background:#293b50;color:white}.nav-link.active{background:var(--red);color:white;font-weight:700}.sidebar-bottom{border-top:1px solid #ffffff23;font-size:11px;color:#8da0b7;padding:19px 9px;margin-top:25px}.main-content{padding:34px clamp(24px,4.3vw,72px) 70px;background:#fff;min-width:0;box-shadow:0 0 20px #23334d06}.breadcrumbs{color:#8390a0;font-size:12px;display:flex;gap:9px;align-items:center;margin-bottom:29px}.crumb-separator{color:#cbd5e1}.article{font-size:15px;line-height:1.8;max-width:850px;overflow-wrap:anywhere}.article h1{font-size:clamp(30px,3.1vw,41px);line-height:1.22;letter-spacing:-.035em;margin:0 0 20px;color:#17263b}.article h2{font-size:23px;letter-spacing:-.025em;line-height:1.35;margin:39px 0 14px;border-bottom:1px solid var(--line);padding-bottom:10px;color:#1b3047}.article h3{font-size:18px;margin:28px 0 10px;color:#263950}.article p{margin:0 0 17px}.article ul,.article ol{padding-left:24px;margin:0 0 20px}.article li{margin:7px 0}.article strong{color:#182a40}.article a:not(.heading-anchor){text-underline-offset:3px}.article a:hover{color:#9d1e25}.article blockquote{margin:25px 0;background:#fffaf0;border:1px solid #e8d8a8;border-left:4px solid #caa15e;border-radius:0 9px 9px 0;padding:15px 18px;color:#715921}.article blockquote p:last-child{margin-bottom:0}.article code{font:13px ui-monospace,SFMono-Regular,Consolas,monospace;background:#f1f5f9;color:#a9212b;padding:3px 5px;border-radius:4px}.article pre{max-width:100%;overflow-x:auto;border-radius:10px;background:#142236;color:#eef4fa;padding:17px 20px;margin:22px 0}.article pre code{color:inherit;padding:0;background:transparent;line-height:1.6}.article table{border-collapse:collapse;max-width:100%;width:100%;font-size:14px;margin:22px 0;display:block;overflow-x:auto}.article th,.article td{padding:11px 13px;border:1px solid #e3e9f0;text-align:left;min-width:120px}.article th{background:#f8fafc;color:#52637a}.article tr:nth-child(even){background:#fafbfd}.article hr{border:0;border-top:1px solid var(--line);margin:28px 0}.heading-anchor{font-size:.75em;color:#b7c3d1;text-decoration:none;margin-left:10px;opacity:0}.article h2:hover .heading-anchor,.article h3:hover .heading-anchor,.heading-anchor:focus{opacity:1}.article-footer{border-top:1px solid var(--line);padding:20px 0;margin-top:50px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px;color:#7f8da0}.article-footer a{text-decoration:none;font-weight:700}.page-navigation{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px}.page-nav-item{padding:17px;border:1px solid #e1e6ed;border-radius:10px;text-decoration:none;background:#f8fafc;color:#192538}.page-nav-item:hover{border-color:#d52d34}.page-nav-item small{display:block;color:#75869b;margin-bottom:6px}.page-nav-item strong{display:block}.toc{border-left:1px solid #e6ebf1;background:#fafbfd}.toc-inner{position:sticky;top:100px;padding:35px 20px}.toc-inner>strong{font-size:11px;letter-spacing:.12em;color:#71839a;display:block;margin-bottom:19px}.toc-link{display:block;text-decoration:none;color:#71839a;border-left:2px solid transparent;padding:7px 0 7px 12px;font-size:12px;line-height:1.5}.toc-link:hover,.toc-link.toc-active{color:var(--red);border-left-color:var(--red)}.toc-level-3{padding-left:24px;font-size:11px}.toc-help{border-top:1px solid var(--line);padding-top:23px;margin-top:30px;display:grid;gap:5px;font-size:12px;color:#64748b}.toc-help a{text-decoration:none;font-weight:700}.search-modal[hidden],.mobile-overlay[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:100;display:flex;align-items:flex-start;justify-content:center;padding:11vh 18px 20px}.search-backdrop{position:absolute;inset:0;background:#07111dc9;backdrop-filter:blur(4px)}.search-dialog{position:relative;background:white;border-radius:15px;box-shadow:0 22px 70px #0005;width:min(630px,100%);overflow:hidden;border:1px solid #d2dce9}.search-input-wrap{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid #e1e6ed}.search-input-wrap svg{color:#8390a0}.search-input-wrap input{flex:1;min-width:0;border:0;outline:0;font-size:15px}.search-input-wrap button{border:1px solid #e1e6ed;border-radius:5px;background:#f8fafc;color:#64748b;font-size:11px;padding:5px}.search-results{max-height:55vh;overflow-y:auto;padding:12px 16px;color:#74859a;font-size:14px}.search-result{display:flex;flex-direction:column;gap:4px;border-radius:8px;padding:12px;text-decoration:none;color:#192538}.search-result:hover{background:#f5f7fa}.search-result small{color:#b9232b;font-size:11px}.search-result strong{font-size:15px}.search-result span{font-size:12px;color:#64748b;line-height:1.5}.search-footer{border-top:1px solid #e1e6ed;background:#f8fafc;padding:11px 16px;color:#8390a0;font-size:11px}
@media(max-width:1160px){.shell{grid-template-columns:250px minmax(0,1fr)}.toc{display:none}.search-trigger{min-width:220px}}@media(max-width:800px){.topbar{padding:0 14px;gap:10px}.topbrand{min-width:0}.topbar-right{gap:12px}.toplink{display:none}.search-trigger{min-width:0;padding:9px}.search-trigger span,.search-trigger kbd{display:none}.mobile-menu{display:block}.shell{display:block}.sidebar{position:fixed;z-index:40;top:70px;bottom:0;left:0;width:min(300px,85vw);height:auto;transform:translateX(-110%);transition:transform .2s;box-shadow:10px 0 35px #0003}.sidebar.is-open{transform:translateX(0)}.mobile-overlay{position:fixed;inset:70px 0 0;background:#0007;z-index:35}.main-content{padding:28px 22px 60px;min-height:calc(100vh - 70px)}.breadcrumbs{margin-bottom:23px}.page-navigation{grid-template-columns:1fr}}@media(max-width:500px){.topbrand strong{font-size:14px}.topbrand small{font-size:10px}.topbrand img{width:29px;height:29px}.article{font-size:14px}.article h1{font-size:29px}.article h2{font-size:21px}.main-content{padding-inline:17px}.search-modal{padding-top:6vh}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.sidebar{transition:none}}