:root{--primary:#2e5bff;--success:#12b76a;--warning:#f79009;--danger:#d92d20;--text:#111827;--text-weak:#64748b;--border:#e5e7eb;--bg:#f9fafb}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;color:var(--text);background:var(--bg)}.mono,code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;line-height:18px}.badge.active,.badge.success{background:#ecfdf3;color:var(--success)}.badge.danger,.badge.suspended{background:#fef3f2;color:var(--danger)}.badge.pending,.badge.warning{background:#fffaeb;color:var(--warning)}button,input{font:inherit}.shell{display:grid;grid-template-columns:224px 1fr;min-height:100vh}.sidebar{border-right:1px solid var(--border);padding:16px 12px;background:#fff}.nav-item{display:block;padding:8px 12px;border-radius:6px;color:var(--text-weak);font-size:14px;margin-bottom:2px}.nav-item.active{background:var(--primary);color:#fff}.nav-item.disabled{opacity:.4}.main{display:flex;flex-direction:column}.header{height:56px;display:flex;align-items:center;gap:16px;padding:0 20px;border-bottom:1px solid var(--border)}.content{padding:20px}