:root{color-scheme:light;--navy:#152c42;--blue:#275d8b;--teal:#158d87;--ink:#23384c;--muted:#6b7d8d;--line:#e0e7ee;--bg:#f2f5f8;--red:#ce7159;--amber:#b17b27;--green:#16877b;font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;font-size:14px;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #60a7c5;outline-offset:3px}button{transition:background .18s,border-color .18s}a{color:var(--blue);text-decoration:none}button:hover{filter:brightness(.97)}[hidden]{display:none!important}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;background:var(--navy);color:white;padding:0 26px;gap:20px;position:relative;z-index:10}.brand{display:flex;align-items:center;gap:14px;color:white;white-space:nowrap}.brand-mark{height:34px;width:34px;background:#284b64;color:#8ee2d6;display:grid;place-items:center;border-radius:9px;font-size:25px;font-weight:700;font-family:Georgia,serif}.brand strong{font-size:21px;letter-spacing:2px;font-weight:600}.brand>span:last-child{font-size:14px;color:#c4d3df}.brand-divider{height:22px;border-left:1px solid #466075;margin:0 3px}.top-actions{display:flex;gap:20px;align-items:center;white-space:nowrap}.demo-pill{color:#b9cedb;font-size:12px}.top-actions button{background:#28485f;border:1px solid #486278;color:#e7f0f6;border-radius:6px;padding:8px 12px;font-size:12px}.top-actions button span{color:#8ce1d3;margin-left:8px}.app-shell{display:grid;grid-template-columns:176px minmax(0,1fr) 260px;min-height:calc(100vh - 72px)}.app-shell.assistant-hidden{grid-template-columns:176px minmax(0,1fr)}.sidebar{background:#fff;border-right:1px solid var(--line);padding:25px 12px 18px;display:flex;flex-direction:column;min-width:0}.nav-caption{color:#8393a0;font-size:11px;letter-spacing:2px;margin:0 13px 17px}.nav-item{border:0;background:none;color:#526677;display:flex;align-items:center;gap:12px;width:100%;border-radius:7px;text-align:left;font-size:13px;padding:13px 12px;margin-bottom:4px;white-space:nowrap}.nav-item svg{width:18px;height:18px;stroke-width:1.6}.nav-item[aria-current=page]{background:#e8eff5;color:#224e76;font-weight:600;box-shadow:inset 3px 0 #265e87}.nav-divider{height:1px;background:var(--line);margin:18px 12px}.nav-item .new{margin-left:auto;font-size:9px;color:var(--teal);border:1px solid #cae4de;border-radius:3px;padding:0 3px;font-weight:500}.sidebar-bottom{margin-top:auto;padding:40px 12px 4px;font-size:11px;color:var(--muted);line-height:1.8}.sidebar-bottom small{display:block;margin-top:4px;font-size:10px}.sidebar-bottom a{display:block;margin-top:15px;font-size:10px}.system-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#44ab9a;margin-right:7px;vertical-align:middle}#main{padding:27px 28px 18px;min-width:0}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px}.eyebrow{font-size:11px;color:#8a9aa7;margin-bottom:9px}h1{font-size:26px;font-weight:600;letter-spacing:.5px;margin:0}h2,h3,p{margin:0}.page-heading p{font-size:12px;color:var(--muted);line-height:1.8;margin-top:7px}.page-stamp{text-align:right;color:#6b8393;white-space:nowrap;font-size:11px}.page-stamp small{display:block;font-size:11px;margin-top:6px;color:#8a9aa7}.page-footer{margin-top:16px;color:#8b99a5;font-size:10px;line-height:1.7}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}.toolbar>p{font-size:12px;color:var(--muted)}.toolbar 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