:root{--ink:#192b3e;--muted:#536678;--line:#dce5eb;--teal:#087e83;--nav:#132c40;--bg:#f2f6f8;--blue:#205ca2}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;line-height:1.85;font-size:15px}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer;border:1px solid #c8d5df;background:white;border-radius:8px;padding:8px 13px;color:var(--ink)}button:hover{background:#edf6f7}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #21b8be;outline-offset:3px}
.sidebar{position:fixed;inset:0 auto 0 0;width:270px;background:var(--nav);color:white;padding:28px 20px;overflow-y:auto}.brand{font-size:18px;font-weight:750;letter-spacing:1px}.brand small{display:block;color:#9eb9cc;font-size:11px;letter-spacing:2px;margin:5px 0 22px}.sidebar input{width:100%;background:#243e52;border:1px solid #456073;border-radius:8px;padding:10px;color:white;font-size:13px}.sidebar input::placeholder{color:#bed0dc}.nav{margin-top:20px}.nav a{display:flex;gap:10px;color:#dbe8f0;padding:8px 9px;border-radius:7px;font-size:13px;line-height:1.65;margin:2px 0}.nav a span{color:#76a6b8;font-size:11px;min-width:20px}.nav a:hover,.nav a.active{background:#264e62;color:white;text-decoration:none}.side-note{font-size:11px;color:#9eb9cc;border-top:1px solid #365063;margin-top:22px;padding-top:16px}.side-note p{margin:4px 0}
main{margin-left:270px;max-width:1490px;padding:34px 46px 70px}.hero{background:linear-gradient(120deg,#15364e,#14606b);border-radius:18px;padding:42px 45px;color:white;position:relative;overflow:hidden}.eyebrow{color:#9ce4dc;text-transform:uppercase;font-size:12px;letter-spacing:2px;font-weight:700}.hero h1{font-size:clamp(27px,3vw,43px);line-height:1.35;margin:14px 0 17px;letter-spacing:-1px}.hero p{max-width:850px;color:#d7e9ed;margin:0;font-size:16px}.meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.meta span{border:1px solid #55818d;border-radius:25px;padding:4px 12px;font-size:12px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:20px 0;color:var(--muted);font-size:12px}.actions{display:flex;gap:8px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin:22px 0}.card{background:white;border:1px solid var(--line);padding:22px;border-radius:12px}.card b{font-size:18px;display:block;margin-bottom:7px}.card p{font-size:13px;color:var(--muted);margin:0}.card .kicker{font-size:11px;color:var(--teal);font-weight:700;letter-spacing:1px;margin-bottom:9px}.brief{background:#e5f2ef;border-left:4px solid #1d9b87;padding:22px 26px;border-radius:0 10px 10px 0;margin:25px 0}.brief p{margin:5px 0}.scope{font-size:13px;color:var(--muted);padding:0 2px 15px}
.chapter{background:white;border:1px solid var(--line);border-radius:14px;margin:25px 0;padding:30px 34px;scroll-margin-top:25px}.chapter-head{display:flex;align-items:center;gap:13px;border-bottom:1px solid var(--line);padding-bottom:19px;margin-bottom:25px}.chapter-num{font-size:26px;font-weight:800;color:#90bbc3}.chapter h2{font-size:23px;line-height:1.4;margin:0;flex:1}.badge{font-size:11px;padding:3px 9px;border-radius:15px;background:#edf4f7;color:#4b6576;white-space:nowrap}.prose h3{font-size:19px;margin:28px 0 12px;color:#155964}.prose h4{font-size:16px;margin:23px 0 10px}.prose p{margin:12px 0}.prose ul,.prose ol{padding-left:25px}.prose li{margin:6px 0}.prose strong{color:#143d58}.prose blockquote{border-left:3px solid #85b9bd;margin:20px 0;padding:3px 18px;background:#f3f8f9}.table-scroll{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:9px}table{border-collapse:collapse;width:100%;min-width:500px;font-size:13px}th,td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}th{background:#ecf3f6;font-weight:700}tr:last-child td{border-bottom:none}tbody tr:nth-child(even){background:#f9fbfc}code{font-family:Consolas,"Cascadia Code",monospace;font-size:.88em;background:#edf2f5;border-radius:4px;padding:2px 5px;overflow-wrap:anywhere}pre{background:#142c3d;color:#d9e9f0;padding:22px;border-radius:10px;overflow-x:auto;font-size:13px;line-height:1.75}pre code{background:none;color:inherit;padding:0;white-space:pre}.architecture{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;background:#eff7f7;padding:20px;border-radius:12px;margin:24px 0}.architecture div{background:white;border:1px solid #c4dbdf;border-top:3px solid #16878c;border-radius:7px;padding:16px}.architecture b{display:block}.architecture span{display:block;font-size:12px;color:var(--muted);margin-top:5px}.architecture p{grid-column:1/-1;font-size:13px;margin:3px 0!important}.footer{font-size:12px;color:var(--muted);padding:10px 0 20px}.hidden{display:none!important}#empty{display:none;padding:30px;background:white;border-radius:10px}.compact .chapter .prose{display:none}.compact .chapter{padding-bottom:12px}.compact .chapter-head{border-bottom:0;margin-bottom:0}.compact .chapter:target .prose{display:block}.compact .chapter:target{padding-bottom:30px}
@media(min-width:1600px){main{margin-left:max(270px,calc((100vw - 1490px)/2 + 235px))}}@media(max-width:1000px){.sidebar{width:230px;padding:22px 14px}main{margin-left:230px;padding:25px}.hero{padding:30px}.cards{grid-template-columns:1fr}.card{padding:17px}.chapter{padding:24px}.chapter h2{font-size:21px}}@media(max-width:700px){.sidebar{position:relative;width:auto;padding:20px}.brand small{margin-bottom:12px}.nav{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:12px}.nav a{font-size:12px}.side-note{display:none}main{margin:0;padding:16px}.hero{padding:26px 22px;border-radius:12px}.hero p{font-size:14px}.hero h1{font-size:29px}.chapter{padding:20px 17px}.chapter h2{font-size:20px}.chapter-num{font-size:22px}.toolbar{align-items:flex-start;flex-direction:column}.architecture{grid-template-columns:1fr}.badge{font-size:10px}.prose{font-size:14px}.table-scroll{max-width:100%}}
@media print{.sidebar,.toolbar,.actions,#empty{display:none!important}main{margin:0!important;padding:0;max-width:none}.hero{background:white!important;color:#16334a;border:1px solid #bbb;padding:25px}.hero p,.eyebrow{color:#344d5b}.meta span{border-color:#aaa}.cards{grid-template-columns:repeat(3,1fr)}.chapter{break-before:page;border:0;padding:0;margin-top:20px}.chapter.hidden,.compact .chapter .prose{display:block!important}.chapter-head{break-after:avoid}.table-scroll{overflow:visible}table{min-width:0;font-size:10px}th,td{padding:7px}tr,pre,.card{break-inside:avoid}pre{white-space:pre-wrap}pre code{white-space:pre-wrap}body{background:white;font-size:11px}h3,h4{break-after:avoid}a{color:#264f6b}.footer{font-size:9px}}

.diagram-figure{margin:25px 0 42px;border:1px solid #d9e5ec;border-radius:12px;padding:15px;background:#fbfdff}.diagram-tools{display:flex;gap:12px;align-items:center;justify-content:space-between}.diagram-tools h3{margin:5px 0 16px}.diagram-tools button{white-space:nowrap;font-size:12px}.diagram-scroll{overflow:auto;max-width:100%;background:white;border-radius:8px}.diagram-scroll svg{display:block;width:100%;min-width:760px;height:auto}figcaption{font-size:13px;color:#526b7e;padding:12px 3px 0}dialog{width:96vw;max-width:1700px;height:93vh;max-height:93vh;border:1px solid #adc3d1;border-radius:13px;padding:18px}dialog::backdrop{background:#0e2239bb}.modal-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.modal-body{height:calc(100% - 55px);overflow:auto}.modal-body svg{display:block;width:100%;min-width:1100px;height:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media print{.diagram-open,dialog{display:none!important}.diagram-scroll{overflow:visible}.diagram-scroll svg{min-width:0;max-height:250mm;width:100%}.diagram-figure{break-inside:avoid;break-before:page;padding:5px}.diagram-tools h3{font-size:16px}}@media(max-width:700px){.diagram-figure{margin-left:-5px;margin-right:-5px;padding:9px}.diagram-scroll svg{min-width:760px}.diagram-tools h3{font-size:16px}}

#lifecycle-conventions .table-scroll:first-of-type td:nth-child(2) code{white-space:nowrap;overflow-wrap:normal}
/* ---- split-site additions ---- */
.nav a.active{font-weight:700}
.toolbar input[type="search"]{padding:8px 12px;border:1px solid #d7e2ea;border-radius:8px;font-size:13px;min-width:220px}
.pager{display:flex;justify-content:space-between;gap:12px;margin:28px 0 8px}
.pager a{padding:10px 14px;border:1px solid #d7e2ea;border-radius:10px;color:#1d5f7a;text-decoration:none;font-size:14px}
.pager a:hover{background:#eef6f9}
.pager .pager-index{color:#607b90}
.pager-prev{text-align:left;flex:1}
.pager-next{text-align:right;flex:1}
.index-h{margin:26px 0 14px;font-size:20px}
.ch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.ch-card{display:block;padding:16px;border:1px solid #d7e2ea;border-radius:12px;background:#fff;color:inherit;text-decoration:none}
.ch-card:hover{border-color:#7fb3c8;box-shadow:0 2px 10px rgba(21,59,82,.08)}
.ch-num{display:inline-block;min-width:2.2em;color:#2e7d96;font-weight:700;font-size:13px}
.ch-card b{display:block;margin:4px 0 2px;font-size:15px}
.ch-card .badge{display:inline-block;font-size:12px;color:#2e7d96;background:#eef6f9;border-radius:999px;padding:1px 8px}
.ch-card p{margin:8px 0 0;font-size:13px;color:#4d6575;line-height:1.55}
.search-panel{margin-top:18px;border:1px solid #d7e2ea;border-radius:12px;background:#fff;max-height:60vh;overflow:auto}
.search-item{display:block;padding:12px 16px;border-bottom:1px solid #eef2f5;color:inherit;text-decoration:none}
.search-item:last-child{border-bottom:0}
.search-item:hover{background:#f4fafc}
.search-item .si-chapter{font-size:12px;color:#607b90}
.search-item .si-heading{font-weight:600;font-size:14px}
.search-item .si-snippet{font-size:13px;color:#4d6575;margin-top:4px;line-height:1.5}
mark{background:#ffe9a8;border-radius:3px;padding:0 1px}

/* Shared navigation and search for the versioned, multi-page site. */
.skip-link{position:fixed;top:8px;left:12px;z-index:20;transform:translateY(-180%);padding:10px 16px;background:white;border-radius:6px}
.skip-link:focus{transform:translateY(0)}
.site-links{display:flex;gap:18px;margin-bottom:22px;font-size:12px}.site-links a{color:#b4e4ec}
.nav-toggle{display:none}.search-region{margin-bottom:25px}.search-region .toolbar{margin:0 0 8px}
.search-region label{font-size:14px;color:var(--ink);font-weight:600}.search-region #result-count{font-size:12px;color:var(--muted);margin:5px 0}
.search-panel{margin-top:10px}.search-item:focus-visible{outline-offset:-3px;background:#eef8fa}.search-retry{margin:0 16px 16px}
.prose{overflow-wrap:anywhere}.chapter-head{flex-wrap:wrap}.chapter-head h2{min-width:160px}
.pager a{min-width:0;overflow-wrap:anywhere}.ch-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr))}
@media(max-width:1000px){
  .nav-toggle{display:block;margin:14px 18px 0}.sidebar{position:static;width:auto;padding:20px}.js .sidebar{display:none}.js .sidebar.open{display:block}
  main{margin-left:0;padding:22px 18px 50px}.sidebar .nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:600px){
  .search-region .toolbar{align-items:stretch;flex-direction:column;gap:8px}.actions{width:100%}.toolbar input[type="search"]{min-width:0;width:100%;flex:1}
  #print{white-space:nowrap}.sidebar .nav{grid-template-columns:1fr}.chapter{padding:20px 17px}.hero{padding:26px 22px}.pager{gap:6px}.pager a{padding:8px;font-size:12px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.search-region,.nav-toggle,.skip-link,.pager{display:none!important}}