:root{--primary:#9c88ff;--primary-hover:#8a75e8;--primary-light:#f3efff;--bg-primary:#fff;--bg-secondary:#f8f9fa;--text-primary:#1a1a1a;--text-secondary:#444;--text-tertiary:#888;--border-color:#eee;--shadow-sm:0 2px 4px #0000000f;--shadow-primary:0 4px 14px #9c88ff40;--radius-sm:4px;--radius-md:8px}*{box-sizing:border-box}body{color:var(--text-primary);background:var(--bg-secondary);margin:0;font-family:Microsoft YaHei,PingFang SC,-apple-system,BlinkMacSystemFont,Segoe UI,Arial,sans-serif}.app-shell{grid-template-columns:220px 1fr;min-height:100vh;display:grid}.sidebar{background:var(--bg-primary);border-right:1px solid var(--border-color);padding:24px 16px}.brand{margin:0 0 16px;font-size:18px}.nav-list{flex-direction:column;gap:10px;display:flex}.logout-btn{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-secondary);cursor:pointer;width:100%;margin-top:20px;padding:10px 12px}.logout-btn:hover{background:var(--primary-light);color:var(--primary)}.nav-item{color:var(--text-secondary);border-radius:var(--radius-md);padding:10px 12px;text-decoration:none}.nav-item.router-link-active,.nav-item:hover{background:var(--primary-light);color:var(--primary)}.page-container{padding:24px}.page{flex-direction:column;gap:16px;display:flex}.page-header h2{margin:0;font-size:22px}.page-header p{color:var(--text-tertiary);margin:6px 0 0;font-size:14px}.card{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:20px}.login-card{gap:14px;width:min(420px,100%);display:grid}.form-item{color:var(--text-secondary);gap:8px;font-size:14px;display:grid}input{border:1px solid var(--border-color);border-radius:var(--radius-sm);outline:none;padding:10px 12px}input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #9c88ff1a}.btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-primary);border:none;padding:10px 16px}.btn-primary:hover{background:var(--primary-hover)}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.stat-card h3{color:var(--text-secondary);margin:0;font-size:15px}.stat-card .value{margin:10px 0 0;font-size:24px;font-weight:700}.toolbar{margin-bottom:12px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border-color);padding:10px 8px;font-size:14px}th{color:var(--text-secondary);font-weight:600}.hint{color:var(--text-tertiary)}.error{color:#ef5350}@media (width<=900px){.app-shell{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--border-color);padding:16px}.page-container{padding:16px}}