:root{--bg: #f5f7fa;--panel: #ffffff;--border: #e4e8ee;--text: #2c3340;--muted: #7b8494;--primary: #2563eb;--primary-dark: #1d4ed8;--ok: #16a34a;--warn: #d97706;--err: #dc2626;--radius: 8px}*{box-sizing:border-box;margin:0;padding:0}body{font:14px/1.6 Microsoft YaHei,system-ui,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}.layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:200px;background:#1e293b;color:#cbd5e1;flex-shrink:0;display:flex;flex-direction:column}.sidebar .logo{padding:18px 16px;font-size:17px;font-weight:700;color:#fff;border-bottom:1px solid #334155}.sidebar .logo small{display:block;font-size:11px;font-weight:400;color:#94a3b8;margin-top:2px}.sidebar nav{flex:1;padding:10px 8px}.sidebar nav a{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:6px;color:#cbd5e1;margin-bottom:2px}.sidebar nav a.router-link-active{background:var(--primary);color:#fff}.sidebar nav 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