:root{
  --brand-orange:#ff9a00;
  --brand-orange-dark:#a65400;
  --brand-orange-mid:#c96f00;
  --brand-orange-soft:#fff3df;
  --brand-gray:#cdcdcd;
  --brand-gray-soft:#f3f3f2;
  --brand-gray-mid:#d8d8d8;
  --brand-gray-dark:#4f5865;
  --bg:#f6f6f5;
  --panel:#fff;
  --line:#d8d8d8;
  --text:#20242a;
  --muted:#68707a;
  --link:var(--brand-orange-dark);
  --accent:var(--brand-orange);
  --accent-strong:var(--brand-orange-dark);
  --accent-soft:var(--brand-orange-soft);
  --warn:var(--brand-orange-dark);
  --warn-soft:var(--brand-orange-soft);
  --protect:var(--brand-gray-dark);
  --protect-soft:#f0f0ef;
  --danger:#b42318;
  --danger-soft:#fee4e2;
  --nav-bg:#fff;
  --nav-muted:#747b86;
  --nav-hover:#f4f4f3;
  --nav-active:var(--brand-orange-soft);
  --nav-icon:var(--brand-orange-mid);
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.topbar{height:64px;display:flex;justify-content:space-between;align-items:center;padding:0 24px;background:#fff;border-bottom:1px solid var(--line);box-shadow:inset 0 -3px 0 var(--brand-orange);position:sticky;top:0;z-index:10}
.brand{display:inline-flex;align-items:center;flex:0 1 auto;min-width:0;min-height:44px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-logo{display:block;height:auto;max-height:46px}
.brand-logo-ai-vision{width:clamp(260px,30vw,460px)}
.topbar-meta{display:flex;gap:14px;color:var(--muted);font-size:13px;flex-wrap:wrap;justify-content:flex-end}
.shell{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:calc(100vh - 90px);transition:grid-template-columns .18s ease}
.shell.nav-collapsed{grid-template-columns:72px minmax(0,1fr)}
.auth-shell-page{background:linear-gradient(180deg,#fff 0%,var(--brand-gray-soft) 100%)}
.auth-topbar{position:static;justify-content:center;height:auto;min-height:82px;padding:16px 24px}
.auth-main{width:min(980px,calc(100% - 32px));margin:0 auto;padding:46px 0 56px}
.auth-main .head{text-align:center;align-items:center;margin-bottom:24px}
.auth-main .head h1{font-size:38px}
.auth-main .head p{font-size:18px;line-height:1.45}
.auth-main .metrics{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
.auth-main .card-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.sidebar{padding:14px;background:var(--nav-bg);border-right:1px solid var(--line);overflow:auto;position:sticky;top:64px;height:calc(100vh - 64px);transition:padding .18s ease}
.sidebar-tools{display:grid;grid-template-columns:minmax(72px,1fr) minmax(72px,1fr) 42px;align-items:center;gap:8px;margin-bottom:12px}
.sidebar-toggle{width:42px;min-height:40px;display:inline-flex;align-items:center;justify-content:center;padding:0;border:1px solid #aeb8c6;background:#fff;color:var(--brand-gray-dark)}
.sidebar-toggle:hover{background:var(--brand-orange-soft);border-color:#f0c174}
.sidebar-toggle svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.sidebar-tool-link{display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:40px;border:1px solid #aeb8c6;border-radius:7px;background:#fff;color:#162033;text-decoration:none;font-weight:800;font-size:13px;padding:0 12px}
.sidebar-tool-link:hover{text-decoration:none;background:var(--brand-orange-soft);border-color:#f0c174}
.nav-section-title{padding:10px 10px 6px;color:var(--nav-muted);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.nav-dashboard,.nav-link{display:flex;align-items:center;gap:10px;border-radius:7px;color:#21314a;text-decoration:none}
.nav-dashboard{min-height:42px;margin:0 0 8px;padding:10px 11px;background:var(--brand-gray-soft);border:1px solid #e3e3e1;font-weight:800}
.nav-link{min-height:34px;padding:8px 10px 8px 38px;font-size:13px;font-weight:700;color:#323942}
.nav-dashboard:hover,.nav-link:hover{background:var(--nav-hover);text-decoration:none}
.nav-dashboard.active,.nav-link.active{background:var(--nav-active);color:var(--accent-strong)}
.nav-group{margin:3px 0 5px;border-radius:8px}
.nav-group[open]{background:#fbfbfa}
.nav-group summary{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:40px;padding:8px 10px;border-radius:8px;color:#242a32;font-weight:800;cursor:pointer;list-style:none}
.nav-group summary::-webkit-details-marker{display:none}
.nav-group summary:hover{background:var(--nav-hover)}
.nav-summary-main{display:flex;align-items:center;gap:10px;min-width:0}
.nav-summary-main span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-icon{width:17px;height:17px;flex:0 0 auto;color:var(--nav-icon);fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-dashboard.active .nav-icon,.nav-link.active .nav-icon,.nav-group[open] .nav-icon{color:var(--accent-strong)}
.nav-chevron{width:14px;height:14px;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.nav-chevron::before{content:"";display:block;width:7px;height:7px;border-right:2px solid #8291a7;border-bottom:2px solid #8291a7;transform:rotate(-45deg);transition:transform .15s ease}
.nav-group[open] .nav-chevron::before{transform:rotate(45deg)}
.nav-links{padding:2px 0 8px}
.nav-domain-links .nav-link,.nav-context-links .nav-link{padding-left:10px}
.nav-domain-links .nav-link span,.nav-context-links .nav-link span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:normal}
.nav-context-card{border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px;margin:2px 0 10px;display:grid;gap:10px}
.nav-context-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.nav-context-button{width:100%;min-height:34px;padding:6px 8px;font-size:12px}
.nav-current-node{display:grid;gap:4px;border-top:1px solid var(--line);padding-top:10px}
.nav-current-node span{color:var(--muted);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.nav-current-node strong{font-size:14px;line-height:1.25;color:#20242a}
.nav-breadcrumb-mini{display:flex;gap:5px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:12px}
.nav-breadcrumb-mini a{font-weight:800}
.nav-empty{display:block;padding:8px 10px;color:var(--muted);font-size:13px}
.nav-context-links .nav-link.active{font-weight:900;border-left:3px solid var(--brand-orange);padding-left:7px}
.shell.nav-collapsed .sidebar{padding:14px 10px}
.shell.nav-collapsed .sidebar-tools{display:flex;justify-content:center}
.shell.nav-collapsed .sidebar-toggle{transform:rotate(180deg)}
.shell.nav-collapsed .sidebar-tool-link{display:none}
.shell.nav-collapsed .nav-section-title,
.shell.nav-collapsed .nav-dashboard span,
.shell.nav-collapsed .nav-context-card,
.shell.nav-collapsed .nav-empty,
.shell.nav-collapsed .nav-summary-main span:last-child,
.shell.nav-collapsed .nav-chevron,
.shell.nav-collapsed .nav-links{display:none}
.shell.nav-collapsed .nav-dashboard,
.shell.nav-collapsed .nav-group summary{justify-content:center;padding:10px;min-height:42px}
.shell.nav-collapsed .nav-dashboard{margin-bottom:10px}
.shell.nav-collapsed .nav-group[open]{background:transparent}
.shell.nav-collapsed .nav-summary-main{justify-content:center}
.shell.nav-collapsed .nav-icon{width:20px;height:20px}
main{padding:24px;min-width:0}
footer{padding:8px 24px;background:#fff;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.head{margin-bottom:18px;display:flex;flex-direction:column;gap:4px}
.node-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}
.head h1{margin:0;font-size:28px;line-height:1.18;letter-spacing:0}
.head p{margin:0;color:var(--muted);max-width:980px}
.eyebrow{font-size:12px;text-transform:uppercase;font-weight:800;color:var(--brand-gray-dark);letter-spacing:0}
.muted{color:var(--muted)}
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:18px}
.metrics article,.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px;overflow:auto}
.metrics span{display:block;color:var(--muted);font-size:13px}
.metrics strong{display:block;margin-top:8px;font-size:24px;line-height:1}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;margin-bottom:16px}
.phase-grid{display:grid;grid-template-columns:repeat(3,minmax(240px,1fr));gap:16px;margin-bottom:16px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.module-card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px;display:flex;flex-direction:column;gap:10px;min-height:260px}
.module-card h2{margin:0;font-size:20px;letter-spacing:0}
.module-card p{margin:0;line-height:1.5}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.code{font-weight:800;font-size:16px;color:#242a32}
.button-link{display:inline-flex;align-items:center;justify-content:center;min-height:36px;border:1px solid var(--line);border-radius:6px;padding:8px 12px;background:#fff;color:var(--text);font-weight:700;text-decoration:none;width:max-content}
.button-link:hover{text-decoration:none;background:var(--brand-orange-soft);border-color:#f0c174}
.disabled-link{color:var(--muted);background:var(--brand-gray-soft);border-color:var(--line);cursor:not-allowed}
.disabled-link:hover{background:var(--brand-gray-soft);border-color:var(--line)}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.compact-dl{grid-template-columns:minmax(100px,140px) 1fr;font-size:13px}
.compact-list li{padding:4px 0}
.mini-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.mini-card{display:flex;flex-direction:column;gap:4px;border:1px solid var(--line);border-radius:8px;padding:10px;background:#fff;color:var(--text)}
.mini-card:hover{text-decoration:none;background:var(--brand-orange-soft)}
.mini-card span{color:var(--muted);font-size:12px}
.module-card table,.panel table{font-size:13px}
.module-card .button-link{margin-top:auto}
.panel h2{margin:0 0 12px;font-size:18px;letter-spacing:0}
.panel h3{margin:14px 0 6px;font-size:15px;letter-spacing:0}
.panel p{line-height:1.5}
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.sticky-tools{position:sticky;top:64px;z-index:5;background:var(--bg);padding:10px 0}
input,select,button,textarea{min-height:38px;border:1px solid var(--line);border-radius:6px;padding:8px 10px;background:#fff;color:var(--text);font:inherit}
input:focus-visible,select:focus-visible,button:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid rgba(255,154,0,.35);outline-offset:2px}
button{cursor:pointer;font-weight:700}
button:disabled{cursor:not-allowed;color:#7b828c;background:#efefee;border-color:#dadad8}
input[type=search]{min-width:min(520px,100%);flex:1}
.stacked-form{display:flex;flex-direction:column;gap:10px;margin:0 0 12px}
.stacked-form label{display:flex;flex-direction:column;gap:5px;font-weight:700;color:#4a5564}
.stacked-form input,.stacked-form select,.stacked-form textarea{width:100%}
.stacked-form button{width:max-content}
.inline-form{display:flex;gap:6px;align-items:center;margin:0 0 6px;flex-wrap:wrap}
.inline-form input{width:150px}
.notice-error,.notice-success{border-radius:6px;padding:10px 12px;font-weight:700}
.notice-error{background:#ffe7e5;color:#7f1d1d}
.notice-success{background:#e7f7ee;color:#166534}
.status-dot{display:inline-block;width:12px;height:12px;border-radius:999px;background:#f59e0b;box-shadow:0 0 0 4px rgba(245,158,11,.14)}
.status-dot.green{background:#15803d;box-shadow:0 0 0 4px rgba(21,128,61,.14)}
.status-dot.yellow{background:#f59e0b;box-shadow:0 0 0 4px rgba(245,158,11,.14)}
.status-dot.red{background:#b42318;box-shadow:0 0 0 4px rgba(180,35,24,.14)}
.mono-wrap{font-family:Consolas,'Courier New',monospace;overflow-wrap:anywhere;background:#f7f7f6;border:1px solid var(--line);border-radius:6px;padding:10px}
.tree{list-style:none;margin:0;padding-left:22px}
.tree-row{display:flex;align-items:center;gap:8px;min-height:32px;white-space:nowrap}
.tree-toggle{width:26px;min-height:26px;padding:0;font-size:0}
.tree-toggle::before{content:"v";font-size:13px;font-weight:800}
.tree li.collapsed>.tree-row .tree-toggle::before{content:">"}
.spacer{width:26px;display:inline-block;flex:0 0 auto}
.tree-panel{font-family:Consolas,'Courier New',monospace;font-size:14px}
.tree li.collapsed>ul{display:none}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:3px 8px;background:#ededec;font-size:12px;font-family:Arial,Helvetica,sans-serif;font-weight:700;color:var(--brand-gray-dark);white-space:nowrap}
.badge-stack{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.badge.protected{color:var(--protect);background:var(--protect-soft)}
.badge.reserved{color:var(--warn);background:var(--warn-soft)}
.badge.phase{color:var(--accent-strong);background:var(--accent-soft)}
.badge.phase.v2-later{color:var(--brand-orange-dark);background:#fff4df}
.badge.phase.v3-enterprise---parking-lot{color:#7f1d1d;background:#ffe7e5}
.breadcrumbs{margin-bottom:14px;display:flex;gap:8px;flex-wrap:wrap}
dl{display:grid;grid-template-columns:minmax(140px,220px) 1fr;gap:8px 14px}
.metadata-grid{grid-template-columns:minmax(130px,210px) minmax(0,1fr)}
dt{font-weight:700}
dd{margin:0;word-break:break-word}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{border-bottom:1px solid var(--line);padding:9px 8px;text-align:left;vertical-align:top}
th{background:var(--brand-gray-soft);font-size:12px;text-transform:uppercase;letter-spacing:0;color:#2f363f}
.highlight-row{outline:2px solid var(--brand-orange);outline-offset:-2px;background:var(--brand-orange-soft)}
.highlight-row td{background:var(--brand-orange-soft)}
.plain,.module-list{list-style:none;padding-left:0;margin:0}
.plain li,.module-list li{padding:8px 0;border-bottom:1px solid var(--line)}
.plain li:last-child,.module-list li:last-child{border-bottom:0}
.split{display:grid;grid-template-columns:minmax(280px,390px) minmax(0,1fr);gap:16px}
.list{max-height:calc(100vh - 180px)}
.markdown{line-height:1.55}
.markdown h1,.markdown h2,.markdown h3{letter-spacing:0}
.code-preview{white-space:pre-wrap;background:#0f172a;color:#e5eefb;border-radius:8px;padding:14px;overflow:auto;max-height:640px;font-size:13px;line-height:1.45}
.editor-file-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:12px}
.editor-file-head h2{margin-bottom:4px}
.editor-file-head p{margin:0}
.workflow-note{display:grid;gap:4px;border:1px solid var(--line);border-left:4px solid var(--brand-orange);border-radius:8px;background:var(--brand-orange-soft);padding:12px;margin:12px 0;color:#3b3f46}
.workflow-note strong{color:#162033}
.evidence-detail{margin-top:8px}
.evidence-detail summary{cursor:pointer;font-weight:800;color:var(--brand-orange-dark)}
.diff-preview-table{margin-top:8px;font-size:12px}
.diff-preview-table code{white-space:pre-wrap;word-break:break-word}
.node-workbench{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,380px);gap:16px;align-items:start}
.node-content{min-width:0}
.node-draft-panel{position:sticky;top:84px;display:flex;flex-direction:column;gap:14px;max-height:calc(100vh - 110px)}
.node-draft-panel h2{margin:0;font-size:20px}
.draft-panel-head{display:grid;gap:5px}
.draft-panel-head p{margin:0}
.draft-status-list{display:grid;gap:10px;max-height:260px;overflow:auto;padding-right:2px}
.draft-status-card{border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px;display:grid;gap:8px}
.draft-status-card p{margin:0}
.draft-status-top{display:flex;justify-content:space-between;gap:8px;align-items:flex-start}
.badge.draft{color:var(--brand-orange-dark);background:var(--brand-orange-soft)}
.node-draft-form{border-top:1px solid var(--line);padding-top:14px}
@media(max-width:980px){
  .shell,.split,.phase-grid,.node-workbench{grid-template-columns:1fr}
  .shell.nav-collapsed{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .shell.nav-collapsed .sidebar{padding:14px}
  .shell.nav-collapsed .nav-dashboard span,
  .shell.nav-collapsed .nav-summary-main span:last-child{display:inline}
  .shell.nav-collapsed .nav-section-title{display:block}
  .shell.nav-collapsed .nav-context-card,
  .shell.nav-collapsed .nav-empty{display:grid}
  .shell.nav-collapsed .nav-chevron{display:flex}
  .shell.nav-collapsed .nav-dashboard,
  .shell.nav-collapsed .nav-group summary{justify-content:space-between}
  .shell.nav-collapsed .nav-dashboard{justify-content:flex-start}
  .shell.nav-collapsed .nav-links{display:block}
  .shell.nav-collapsed .nav-summary-main{justify-content:flex-start}
  main{padding:16px}
  .topbar{align-items:flex-start;height:auto;min-height:64px;padding:12px 16px;gap:8px;flex-direction:column}
  .brand-logo{max-height:42px}
  .brand-logo-ai-vision{width:min(86vw,390px)}
  .sticky-tools{top:86px}
  .node-draft-panel{position:static;max-height:none}
  .node-head{flex-direction:column}
  .badge-stack{justify-content:flex-start}
}