:root{--bg: #0a0e1a;--panel: #0f1424;--card: #131a2c;--border: #1e2a4a;--text: #c8d4f0;--dim: #5f7199;--accent: #3b82f6;--ok: #22c55e;--danger: #ef4444;--warn: #f59e0b}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}.shell{display:flex;min-height:100vh}.sidebar{width:180px;background:var(--panel);border-right:1px solid var(--border);padding:16px 10px;display:flex;flex-direction:column;gap:8px;position:sticky;top:0;height:100vh}.logo{font-weight:800;font-size:14px;padding:6px 8px 14px;letter-spacing:.3px}.nav-link{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:10px;color:var(--dim);text-decoration:none;font-size:13px}.nav-link:hover{background:#182038;color:var(--text)}.nav-link.active{background:linear-gradient(135deg,#3b82f640,#06b6d426);color:var(--text)}.sidebar-foot{margin-top:auto;font-size:11px;color:var(--dim);padding:6px 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