:root{--primary:#5d8a5e;--primary-dark:#4a7050;--primary-light:#e8f5e9;--danger:#e53935;--warning:#f57c00;--success:#388e3c;--text:#333;--text-secondary:#666;--border:#e0e0e0;--bg:#f5f5f5;--white:#fff;--sidebar-width:220px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px}a{color:inherit;text-decoration:none}.layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);color:#ecf0f1;z-index:100;background:#2c3e50;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-logo{color:#fff;border-bottom:1px solid #3d5166;padding:20px 16px;font-size:16px;font-weight:700}.sidebar-logo span{color:var(--primary)}.sidebar-nav{flex:1;padding:8px 0}.nav-item{cursor:pointer;color:#bdc3c7;align-items:center;gap:10px;padding:12px 20px;font-size:14px;transition:background .2s;display:flex}.nav-item:hover{color:#fff;background:#3d5166}.nav-item.active{background:var(--primary);color:#fff}.sidebar-footer{color:#7f8c8d;cursor:pointer;border-top:1px solid #3d5166;padding:16px;font-size:12px}.sidebar-footer:hover{color:#bdc3c7}.main{margin-left:var(--sidebar-width);flex-direction:column;flex:1;min-width:0;display:flex}.topbar{background:var(--white);border-bottom:1px solid var(--border);z-index:10;justify-content:space-between;align-items:center;height:56px;padding:0 24px;display:flex;position:sticky;top:0}.topbar-title{font-size:16px;font-weight:600}.topbar-user{color:var(--text-secondary);font-size:13px}.content{flex:1;padding:24px}.card{background:var(--white);border:1px solid var(--border);border-radius:8px;margin-bottom:20px;padding:20px}.card-title{margin-bottom:16px;font-size:15px;font-weight:600}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:20px;display:grid}.stat-card{background:var(--white);border:1px solid var(--border);border-radius:8px;padding:20px}.stat-label{color:var(--text-secondary);margin-bottom:8px;font-size:13px}.stat-value{color:var(--primary);font-size:28px;font-weight:700}.stat-value.warn{color:var(--warning)}.stat-value.danger{color:var(--danger)}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;padding:10px 12px}th{color:var(--text-secondary);background:#fafafa;font-size:13px;font-weight:600}tr:last-child td{border-bottom:none}tr:hover td{background:#fafafa}.btn{cursor:pointer;border:none;border-radius:6px;align-items:center;gap:4px;padding:6px 14px;font-size:13px;font-weight:500;transition:opacity .2s;display:inline-flex}.btn:hover{opacity:.85}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-default{color:var(--text);background:#f0f0f0}.btn-sm{padding:4px 10px;font-size:12px}.badge{border-radius:10px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.badge-success{color:var(--success);background:#e8f5e9}.badge-warning{color:var(--warning);background:#fff3e0}.badge-danger{color:var(--danger);background:#ffebee}.badge-default{color:var(--text-secondary);background:#f5f5f5}.filter-bar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;display:flex}input[type=text],input[type=password],input[type=date],select{border:1px solid var(--border);background:var(--white);border-radius:6px;outline:none;padding:7px 12px;font-size:13px}input:focus,select:focus{border-color:var(--primary)}.pagination{color:var(--text-secondary);justify-content:flex-end;align-items:center;gap:8px;margin-top:16px;font-size:13px;display:flex}.login-page{background:linear-gradient(135deg,#2c3e50 0%,#3d5166 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-box{background:var(--white);border-radius:12px;width:360px;padding:40px;box-shadow:0 20px 60px #0000004d}.login-title{text-align:center;margin-bottom:8px;font-size:20px;font-weight:700}.login-sub{text-align:center;color:var(--text-secondary);margin-bottom:28px;font-size:13px}.form-group{margin-bottom:16px}.form-group label{margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-group input{width:100%}.error-msg{color:var(--danger);text-align:center;margin-bottom:12px;font-size:13px}.tags{flex-wrap:wrap;gap:4px;display:flex}.tag{background:var(--primary-light);color:var(--primary-dark);border-radius:10px;padding:2px 8px;font-size:11px}.empty{text-align:center;color:var(--text-secondary);padding:40px}.trend-bars{align-items:flex-end;gap:6px;height:80px;display:flex}.trend-bar-wrap{flex-direction:column;flex:1;align-items:center;gap:4px;display:flex}.trend-bar{background:var(--primary);border-radius:3px 3px 0 0;width:100%;min-height:2px;transition:height .3s}.trend-label{color:var(--text-secondary);font-size:10px}