:root{--bg:#f4f6fb;--surface:#ffffff;--text:#172033;--muted:#6b7489;--border:#e3e7ef;--primary:#1f6feb;--primary-ink:#ffffff;--ok:#12805c;--ok-bg:#e3f6ee;--bad:#c62f3a;--bad-bg:#fdecee;--warn:#9a6200;--warn-bg:#fff4dc;--radius:10px;--shadow:0 1px 2px rgba(16,24,40,0.06),0 1px 3px rgba(16,24,40,0.08)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font:14px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:inherit;text-decoration:none}h1{font-size:22px;margin:0 0 2px}h2{font-size:18px;margin:4px 0}h3{font-size:13px;text-transform:uppercase;letter-spacing:.04em;margin:0 0 12px}.muted,h3{color:var(--muted)}.small{font-size:12px}.strong{font-weight:600}.bad,.error{color:var(--bad)}.error{background:var(--bad-bg);padding:10px 12px;border-radius:8px;margin:10px 0}.topbar{background:#0f1729;color:#fff;position:-webkit-sticky;position:sticky;top:0;z-index:10}.topbar-inner{max-width:1400px;margin:0 auto;padding:0 16px;height:56px;display:flex;align-items:center;gap:16px}.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;white-space:nowrap}.brand-lg{font-size:20px;justify-content:center;margin-bottom:18px}.brand-mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#2ee6ff,#1f6feb);color:#fff;font-weight:800}.login-bg .brand{color:var(--text)}.nav{display:flex;align-items:center;gap:4px;flex:1 1}.nav-link{padding:8px 12px;border-radius:8px;color:#c5cee0}.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}.nav-link.active{background:rgba(255,255,255,.14);color:#fff}.nav-sep{flex:1 1}.nav-user{color:#9aa6bf;font-size:13px;margin-right:4px}.nav .btn-ghost{color:#fff;border-color:rgba(255,255,255,.25);background:transparent}.menu-toggle{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:22px;cursor:pointer}@media (max-width:860px){.menu-toggle{display:block}.nav{display:none;position:absolute;top:56px;left:0;right:0;background:#0f1729;flex-direction:column;align-items:stretch;padding:8px 16px 16px}.nav.open{display:flex}.nav-sep{display:none}.nav-user{padding:8px 12px}}.page{max-width:1400px;margin:0 auto;padding:20px 16px 48px}.narrow{max-width:760px;margin:0 auto}.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin-bottom:16px;flex-wrap:wrap}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.center-screen{min-height:calc(100vh - 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