:root{--bg:#eef2f7;--panel:#fff;--ink:#182334;--muted:#6c788b;--line:#dce3ec;--blue:#1769e0;--blue-dark:#0e4eaf;--nav:#15243a;--nav2:#1c304a;--green:#18a36f;--red:#d84c5a;--amber:#d58a16;--violet:#7458df;--shadow:0 8px 28px rgba(31,50,78,.08);font-family:"Segoe UI","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-width:1024px;background:var(--bg)}button,input,select{font:inherit}.app-shell{display:grid;grid-template-columns:224px 1fr;grid-template-rows:52px calc(100vh - 52px);min-height:100vh}.titlebar{grid-column:1/3;display:flex;align-items:center;padding:0 0 0 16px;color:#fff;background:#0d1b2c;box-shadow:0 1px 0 rgba(255,255,255,.08);z-index:10}.app-mark{width:30px;height:30px;display:grid;place-items:center;border-radius:7px;background:linear-gradient(135deg,#3388ff,#1556ba);font-weight:800;font-size:12px;box-shadow:0 4px 12px rgba(23,105,224,.35)}.title-copy{display:flex;align-items:baseline;gap:13px;margin-left:10px}.title-copy strong{font-size:14px}.title-copy span{font-size:12px;color:#91a1b8}.title-status{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:12px;color:#bfccdc}.status-dot,.live-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#36d493;box-shadow:0 0 0 4px rgba(54,212,147,.12)}.window-actions{height:52px;display:flex;margin-left:28px}.window-actions span{width:46px;display:grid;place-items:center;color:#b7c4d4;font-size:16px}.window-actions span:hover{background:rgba(255,255,255,.08)}.window-actions .window-close:hover{background:#d73545;color:#fff}.sidebar{grid-row:2;background:linear-gradient(180deg,var(--nav),#111f32);padding:20px 12px 14px;color:#d3dce8;display:flex;flex-direction:column}.sidebar-section{padding:0 12px 10px;text-transform:uppercase;letter-spacing:.16em;color:#71839b;font-size:10px;font-weight:700}.nav-item{border:0;background:transparent;color:#aebbc9;display:flex;align-items:center;gap:12px;width:100%;height:44px;padding:0 13px;margin:2px 0;border-radius:8px;text-align:left;cursor:pointer;transition:.18s}.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}.nav-item.active{background:linear-gradient(90deg,#206fd8,#1b60be);color:#fff;box-shadow:0 6px 18px rgba(5,60,135,.35)}.nav-icon{font-size:19px;width:22px;text-align:center}.sidebar-footer{margin-top:auto;padding:12px 8px 2px}.server-badge{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.04);border-radius:9px}.server-badge strong,.server-badge small{display:block}.server-badge strong{font-size:12px}.server-badge small{font-size:10px;color:#8293a8;margin-top:3px}.version{text-align:center;color:#64768e;font-size:10px;margin-top:13px}.content{overflow:auto;padding:28px 30px 40px}.page{display:none;max-width:1500px;margin:auto}.page.active{display:block}.page-heading{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:22px}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.18em;color:var(--blue);font-weight:800;margin:0 0 5px}.page-heading h1{font-size:27px;letter-spacing:-.02em;margin:0}.page-heading p:not(.eyebrow){color:var(--muted);font-size:13px;margin:6px 0 0}.btn{height:38px;padding:0 16px;border-radius:7px;border:1px solid transparent;font-weight:650;font-size:13px;cursor:pointer}.btn.primary{background:var(--blue);color:#fff;box-shadow:0 5px 14px rgba(23,105,224,.22)}.btn.primary:hover{background:var(--blue-dark)}.btn.secondary{background:#fff;border-color:#ccd6e2;color:#344258}.btn.secondary:hover{background:#f7f9fc}.btn.danger{background:#fff0f1;border-color:#f0c8cc;color:#bd3e4b}.btn:disabled{opacity:.48;cursor:not-allowed;box-shadow:none}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}.metric-card{background:var(--panel);border:1px solid #e1e7ef;border-radius:11px;box-shadow:var(--shadow);padding:20px;display:flex;align-items:center;gap:16px;position:relative;overflow:hidden}.metric-card:after{content:"";position:absolute;right:-24px;top:-32px;width:90px;height:90px;border-radius:50%;background:currentColor;opacity:.05}.metric-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:10px;background:currentColor;color:#fff;font-size:21px}.metric-card.blue{color:var(--blue)}.metric-card.green{color:var(--green)}.metric-card.violet{color:var(--violet)}.metric-card.amber{color:var(--amber)}.metric-card div:last-child{display:flex;flex-direction:column}.metric-card span,.metric-card small{color:var(--muted);font-size:11px}.metric-card strong{color:var(--ink);font-size:27px;line-height:1.15;margin:3px 0}.panel{background:var(--panel);border:1px solid #dfe6ee;border-radius:11px;box-shadow:var(--shadow)}.dashboard-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:18px}.panel-header{height:70px;padding:0 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input:checked+i:after{left:19px}.toast{position:fixed;right:25px;bottom:25px;z-index:100;background:#18283c;color:#fff;border-radius:8px;padding:12px 16px;box-shadow:0 12px 30px rgba(0,0,0,.2);font-size:12px;transform:translateY(20px);opacity:0;pointer-events:none;transition:.2s}.toast.show{transform:none;opacity:1}.toast.error{background:#b63d49}.update-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}.update-version-card{padding:16px 18px;background:#f6f9fd;border:1px solid #dde6ef;border-radius:9px}.update-version-card span,.update-version-card small{display:block;font-size:10px;color:var(--muted)}.update-version-card strong{display:block;font-size:22px;margin:5px 0;color:var(--ink)}.system-update-config{padding-top:4px}.update-message{margin-top:16px;padding:12px 14px;background:#eef5ff;border:1px solid #d4e4fb;border-radius:7px;color:#315f99;font-size:11px}.update-notes{margin-top:12px;padding:14px;background:#f8fafc;border:1px solid #e0e7ef;border-radius:7px}.update-notes strong{font-size:11px}.update-notes p{white-space:pre-wrap;margin:6px 0 0;font-size:11px;line-height:1.65;color:var(--muted)}.btn.restart-primary{background:#d97706;color:#fff;border-color:#c86d05;box-shadow:0 6px 16px rgba(217,119,6,.24)}.btn.restart-primary:hover{background:#b96005}.restart-banner{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px;padding:16px 18px;border:1px solid #f0cf9a;border-radius:10px;background:#fff8e8;box-shadow:var(--shadow)}.restart-banner strong{display:block;font-size:13px;color:#7b4b10}.restart-banner p{margin:4px 0 0;font-size:11px;color:#8a6b3c}@media(max-width:1180px){.metric-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.settings-grid{grid-template-columns:1fr}.settings-card.full{grid-column:auto}}