:root{--bg:#f5f7fb;--surface:#fff;--ink:#182338;--muted:#66748b;--line:#e4e9f1;--navy:#111c2e;--blue:#3c68d8;--blue-soft:#eef3ff;--mint:#dff8f0;--shadow:0 12px 36px rgba(23,42,77,.06);--radius:16px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.7 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.skip-link{position:absolute;left:-9999px;top:8px;background:#fff;padding:8px 12px;z-index:99}.skip-link:focus{left:8px}.topbar{height:76px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none}.brand:hover{text-decoration:none}.brand-mark{width:42px;height:42px;display:grid;place-items:center;background:var(--navy);color:#a9c1ff;border-radius:13px;font-weight:850;font-size:23px;position:relative}.brand-mark span{color:#70e0c1;font-size:12px;position:absolute;right:5px;top:2px}.brand strong{display:block;font-size:16px;letter-spacing:-.3px}.brand small{display:block;color:var(--muted);font-size:11px;margin-top:-2px}.top-actions{display:flex;align-items:center;gap:12px}.search-wrap{width:min(390px,36vw);height:42px;display:flex;align-items:center;gap:9px;background:#f7f9fc;border:1px solid var(--line);border-radius:11px;padding:0 11px;color:#8a97aa}.search-icon{font-size:24px;line-height:1}.search-wrap input{width:100%;border:0;outline:0;background:transparent;font:inherit;font-size:13px;color:var(--ink)}kbd{border:1px solid #d7deea;border-radius:5px;padding:0px 5px;font-size:11px;white-space:nowrap;background:#fff}.lang-button,.icon-button{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;min-width:42px;height:40px;font-weight:750;cursor:pointer}.lang-button:hover,.icon-button:hover{border-color:#b7c8ed;background:var(--blue-soft)}.mobile-menu-button{display:none;min-width:42px;padding:9px}.mobile-menu-button span{display:block;height:2px;background:#27354c;margin:4px 0;border-radius:3px}.layout{max-width:1600px;margin:auto;display:grid;grid-template-columns:260px minmax(0,1fr) 220px;min-height:calc(100vh - 76px)}.sidebar{background:#fbfcfe;border-right:1px solid var(--line);padding:27px 18px 22px;display:flex;flex-direction:column;min-height:calc(100vh - 76px)}.sidebar-label,.toc-title{font-size:11px;text-transform:uppercase;letter-spacing:1.25px;color:#8b97a9;font-weight:800;padding:0 10px 12px}.nav-group{margin-bottom:22px}.nav-group-title{font-size:11px;color:#99a4b4;font-weight:800;text-transform:uppercase;letter-spacing:.8px;padding:0 10px 8px}.nav-link{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;color:#536178;font-size:13px;font-weight:570;margin:2px 0;line-height:1.45}.nav-link .nav-icon{width:19px;text-align:center;color:#8997ae;font-size:15px}.nav-link.active{background:var(--blue-soft);color:#2c55ba;font-weight:750}.nav-link.active .nav-icon{color:var(--blue)}.nav-link:hover{background:#f0f3f9;text-decoration:none;color:var(--ink)}.sidebar-note{display:flex;gap:9px;background:#f0f9f6;border:1px solid #d8f0e8;padding:12px;border-radius:12px;margin-top:auto;color:#2b6658}.status-dot{flex:0 0 8px;height:8px;border-radius:50%;background:#26b58d;margin-top:7px}.sidebar-note strong{font-size:12px}.sidebar-note p{font-size:11px;line-height:1.55;margin:4px 0 0;color:#64877e}.sidebar-footer{font-size:11px;color:#9aa5b5;padding:18px 8px 0}.sidebar-footer span{padding:0 4px}.main-content{padding:38px clamp(24px,4vw,66px) 26px;min-width:0;max-width:1000px;width:100%;margin:0 auto}.breadcrumbs{font-size:12px;color:#94a0b0;margin-bottom:18px}.breadcrumbs span{margin:0 7px;color:#c0c8d4}.article{min-height:480px}.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-weight:850;text-transform:uppercase;letter-spacing:1.15px;color:#3560c8;background:var(--blue-soft);padding:6px 10px;border-radius:6px;margin-bottom:14px}.eyebrow:before{content:"";width:6px;height:6px;background:#4c74de;border-radius:50%}.article h1{font-size:clamp(30px,3.3vw,44px);line-height:1.18;letter-spacing:-1.4px;margin:0 0 17px;font-weight:820;color:#152238}.lead{font-size:17px;color:#637188;line-height:1.75;max-width:760px;margin:0 0 28px}.hero-panel{background:linear-gradient(120deg,#121e32,#20385d);color:#fff;border-radius:18px;padding:26px 28px;margin:26px 0 32px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-panel:after{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-75px;top:-100px;box-shadow:0 0 0 28px rgba(255,255,255,.025),0 0 0 56px rgba(255,255,255,.02)}.hero-panel h2{color:#fff!important;border:0!important;margin:0 0 8px!important;padding:0!important;font-size:20px!important}.hero-panel p{color:#cbd7ec;margin:0;max-width:640px}.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:19px}.hero-badges span{font-size:11px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.12);border-radius:7px;padding:5px 9px;color:#e3ebf9}.article h2{font-size:24px;letter-spacing:-.6px;line-height:1.3;margin:39px 0 14px;padding-bottom:10px;border-bottom:1px solid var(--line);scroll-margin-top:92px}.article h3{font-size:17px;letter-spacing:-.2px;margin:26px 0 9px;scroll-margin-top:92px}.article p{margin:12px 0}.article ul,.article ol{padding-left:24px}.article li{padding-left:4px;margin:7px 0}.article strong{color:#26354e}.article code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em;background:#f0f3f8;color:#344f87;border:1px solid #e4e9f1;border-radius:5px;padding:2px 5px;overflow-wrap:anywhere}.code-block{position:relative;margin:18px 0 22px;background:#111c2e;border-radius:12px;overflow:hidden;box-shadow:0 6px 20px rgba(20,35,60,.08)}.code-block pre{margin:0;padding:20px 54px 20px 20px;color:#d9e5fa;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-x:auto}.copy-button{position:absolute;right:9px;top:9px;border:1px solid #3a4b68;background:#1d2b43;color:#d9e5fa;border-radius:7px;padding:5px 8px;font-size:11px;cursor:pointer}.copy-button:hover{background:#2d4162}.callout{display:flex;gap:12px;border:1px solid #dce6fc;border-left:4px solid #4d73d9;background:#f5f8ff;border-radius:10px;padding:14px 16px;margin:20px 0;color:#435471}.callout.warning{background:#fff8ed;border-color:#f6e3c4;border-left-color:#e4a343}.callout.success{background:#f0faf6;border-color:#d3eee4;border-left-color:#36ae8b}.callout-icon{font-size:17px;line-height:1.4}.callout p{margin:0;font-size:13px}.callout strong{display:block;margin-bottom:3px}.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin:20px 0}.doc-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:17px;color:var(--ink);transition:transform .16s,border-color .16s;min-height:140px}.doc-card:hover{transform:translateY(-2px);border-color:#b9c9ee;text-decoration:none;box-shadow:var(--shadow)}.doc-card .card-icon{font-size:20px;display:block;margin-bottom:8px}.doc-card strong{display:block;font-size:14px;margin-bottom:6px}.doc-card p{font-size:12px;color:var(--muted);line-height:1.6;margin:0}.table-wrap{overflow:auto;margin:18px 0 22px;border:1px solid var(--line);border-radius:11px;background:#fff}table{border-collapse:collapse;width:100%;font-size:12px;min-width:460px}th,td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line)}th{background:#f6f8fc;color:#52617a;font-size:11px;text-transform:uppercase;letter-spacing:.45px}tr:last-child td{border-bottom:0}.article blockquote{border-left:3px solid #9db3ed;margin:18px 0;padding:3px 0 3px 17px;color:#64738b}.toc-aside{padding:43px 18px 20px 4px;border-left:1px solid var(--line);background:rgba(255,255,255,.28)}#toc{position:sticky;top:110px}.toc-link{display:block;color:#7c899c;font-size:11px;line-height:1.5;padding:6px 9px;border-left:2px solid transparent}.toc-link:hover,.toc-link.active{color:#315bc1;border-left-color:#4770d8;text-decoration:none}.toc-link.level-3{padding-left:19px}.help-card{position:sticky;top:70vh;margin:36px 8px 0;padding:13px;background:#fff;border:1px solid var(--line);border-radius:12px}.help-icon{width:25px;height:25px;display:grid;place-items:center;border-radius:8px;background:var(--mint);color:#287c66;font-weight:800;margin-bottom:9px}.help-card strong{font-size:12px}.help-card p{font-size:11px;color:var(--muted);line-height:1.5;margin:4px 0 0}.article-pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:38px 0 26px}.pager-link{display:block;padding:13px 15px;border:1px solid var(--line);background:#fff;border-radius:11px;color:var(--ink)}.pager-link:last-child{text-align:right}.pager-link small{display:block;font-size:10px;color:#98a3b3;margin-bottom:3px}.pager-link strong{font-size:12px}.pager-link:hover{border-color:#b8c8ee;text-decoration:none}.page-footer{border-top:1px solid var(--line);padding:20px 0;display:flex;justify-content:space-between;gap:16px;color:#8b97a8;font-size:11px}.search-results h1{font-size:30px}.result-count{color:var(--muted);font-size:13px;margin-bottom:20px}.search-result{padding:16px;background:#fff;border:1px solid var(--line);border-radius:11px;margin:10px 0}.search-result a{font-weight:750;color:#243b67}.search-result p{font-size:13px;color:var(--muted);margin:6px 0 0}.search-result mark{background:#fff1bd;border-radius:2px}.search-overlay{position:fixed;inset:0;z-index:50;background:rgba(13,24,42,.56);backdrop-filter:blur(4px);padding:12vh 16px;display:flex;justify-content:center;align-items:flex-start}.search-dialog{width:min(640px,100%);background:#fff;border-radius:16px;padding:24px;box-shadow:0 30px 80px rgba(0,0,0,.25)}.search-dialog label{display:block;font-weight:800;font-size:15px;margin-bottom:10px}.search-dialog input{width:100%;padding:13px;border:1px solid #cbd5e4;border-radius:9px;font:inherit;outline-color:#6f8de1}.overlay-close{position:absolute;top:22px;right:24px;border:0;background:transparent;color:#fff;font-size:34px;cursor:pointer}.overlay-results{max-height:46vh;overflow:auto;margin:12px 0}.overlay-result{padding:11px 4px;border-bottom:1px solid var(--line);display:block;color:var(--ink)}.overlay-result strong{display:block;font-size:13px}.overlay-result small{display:block;color:var(--muted);font-size:11px}.search-dialog>small{color:#99a3b3}.empty-state{padding:28px;text-align:center;color:var(--muted);background:#fff;border:1px dashed #cfd8e5;border-radius:12px}.mobile-only{display:none}@media(max-width:1180px){.layout{grid-template-columns:240px minmax(0,1fr)}.toc-aside{display:none}.main-content{max-width:900px}.search-wrap{width:min(320px,33vw)}}@media(max-width:760px){.topbar{height:66px;padding:0 14px}.brand-mark{width:37px;height:37px;border-radius:11px}.brand strong{font-size:14px}.brand small{font-size:10px}.search-wrap{width:40px;padding:0;justify-content:center;border:0;background:transparent}.search-wrap .search-icon{font-size:25px}.search-wrap input,.search-wrap kbd{display:none}.lang-button{height:37px;min-width:39px}.mobile-menu-button{display:block;height:37px;min-width:37px;padding:7px}.layout{display:block;min-height:calc(100vh - 66px)}.sidebar{position:fixed;z-index:30;top:66px;bottom:0;left:0;width:min(310px,86vw);overflow-y:auto;transform:translateX(-105%);transition:transform .22s ease;box-shadow:18px 0 35px rgba(15,29,52,.12);min-height:0}.sidebar.open{transform:translateX(0)}.main-content{padding:26px 18px 20px}.article h1{font-size:32px;letter-spacing:-.9px}.lead{font-size:15px}.hero-panel{padding:21px 19px}.card-grid{grid-template-columns:1fr}.article-pager{grid-template-columns:1fr 1fr}.page-footer{font-size:10px}.page-footer a{white-space:nowrap}.sidebar-note{margin-top:28px}.search-overlay{padding-top:9vh}.search-dialog{padding:18px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.not-found-content{max-width:720px;margin:8vh auto;text-align:center}.not-found-title{font-size:clamp(44px,8vw,76px);margin-bottom:8px}.not-found-lead{margin:0 auto 28px}.not-found-button{display:inline-flex;align-items:center;justify-content:center;padding:0 18px;background:#111c2e;color:#fff;border-color:#111c2e}.not-found-bn{margin-top:18px}
/* The author-level flex display must not override the native hidden attribute. */
.search-overlay[hidden]{display:none!important}
