:root{--header-h:56px;--bg:#fff;--panel:#f6f8fb;--chip:#e9eef5;--ink:#0b2545;--ink-2:#4a5f78;--line:#e1e7ef;--line-strong:#c9d3df;--accent:#2f80c8}@media (prefers-color-scheme:dark){:root{--bg:#0f1722;--panel:#131d2a;--chip:#1d2a3a;--ink:#e8eef6;--ink-2:#9fb0c4;--line:#223244;--line-strong:#31455c;--accent:#6fb1ef}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.45}a{color:var(--accent)}.site-header{height:var(--header-h);border-bottom:1px solid var(--line);background:var(--bg);justify-content:space-between;align-items:center;padding:0 16px;display:flex}.brand{letter-spacing:-.02em;color:var(--ink);align-items:center;gap:8px;font-size:22px;font-weight:800;text-decoration:none;display:flex}.brand-word span{color:var(--accent)}.brand-mark{background:var(--ink);border-radius:7px;width:26px;height:26px;position:relative}.brand-mark:after{content:"";background:#f28c28;border-radius:50%;width:7px;height:7px;position:absolute;inset:6px 6px auto auto}.site-nav{gap:16px;display:flex}.site-nav a{color:var(--ink-2);font-weight:500;text-decoration:none}.home{margin:0}.pin-popup{color:#0b2545;font:14px/1.4 system-ui,sans-serif}.pin-popup strong{margin-bottom:2px;font-size:15px;display:block}.pin-sub{color:#4a5f78;font-size:13px}.pin-cond{margin:6px 0}.pin-cond .dot{border-radius:50%;width:9px;height:9px;margin-right:6px;display:inline-block}.pin-popup a{color:#2f80c8;font-weight:600}.site-nav{align-items:center}.auth-slot{align-items:center;gap:10px;min-width:60px;font-weight:500;display:inline-flex}.auth-name{color:var(--ink);text-overflow:ellipsis;white-space:nowrap;max-width:160px;overflow:hidden}.link-button{font:inherit;color:var(--accent);cursor:pointer;background:0 0;border:0;padding:0}.narrow{max-width:480px;margin:0 auto;padding:32px 16px}.stack{flex-direction:column;gap:12px;display:flex}.stack label{color:var(--ink-2);flex-direction:column;gap:4px;font-size:14px;display:flex}.stack input{font:inherit;border:1px solid var(--line-strong);background:var(--bg);color:var(--ink);border-radius:10px;padding:10px 12px}.primary{font:inherit;background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:10px;padding:11px 16px;font-weight:600}.primary:disabled{opacity:.6}.notice{background:var(--chip);border-radius:10px;padding:14px}.error{color:#b42318}.site-footer{border-top:1px solid var(--line);color:var(--ink-2);flex-wrap:wrap;justify-content:space-between;gap:8px 16px;padding:16px;font-size:13px;display:flex}.site-footer nav{gap:16px;display:flex}.site-footer a{color:var(--ink-2)}.prose ul{padding-left:20px}.prose li{margin:8px 0}.home+.site-footer{display:none}