*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;background:#f5f7fa;color:#333}
.topbar{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between;position:fixed;top:0;left:0;right:0;z-index:1000}
.topbar .logo{font-size:20px;font-weight:700}.topbar .user-info{display:flex;align-items:center;gap:16px;font-size:14px}
.topbar .btn-logout{background:rgba(255,255,255,.2);color:#fff;border:1px solid rgba(255,255,255,.3);padding:6px 16px;border-radius:6px;cursor:pointer;font-size:13px}
.sidebar{width:220px;background:#fff;position:fixed;top:56px;left:0;bottom:0;box-shadow:2px 0 8px rgba(0,0,0,.06);padding:12px 0;overflow-y:auto}
.sidebar .menu-item{display:flex;align-items:center;gap:10px;padding:14px 24px;color:#555;text-decoration:none;font-size:14px;transition:all .2s;border-left:3px solid transparent}
.sidebar .menu-item:hover{background:#f0f2ff;color:#667eea}.sidebar .menu-item.active{background:#f0f2ff;color:#667eea;border-left-color:#667eea;font-weight:600}
.main-content{margin-left:220px;margin-top:56px;padding:24px;min-height:calc(100vh - 56px)}.page-title{font-size:22px;font-weight:600;margin-bottom:20px}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 12px rgba(0,0,0,.06);display:flex;align-items:center;gap:16px;transition:all .2s}.stat-card[onclick]:hover{box-shadow:0 4px 20px rgba(0,0,0,.12);transform:translateY(-2px)}
.stat-icon{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px}
.stat-value{font-size:28px;font-weight:700}.stat-label{font-size:13px;color:#888;margin-top:4px}
.card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 12px rgba(0,0,0,.06);margin-bottom:20px}
.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}.card-title{font-size:16px;font-weight:600}
.data-table{width:100%;border-collapse:collapse;font-size:12px}.data-table th{background:#fafafa;padding:10px 12px;text-align:left;font-weight:600;color:#555;border-bottom:2px solid #eee;white-space:nowrap}
.data-table td{padding:8px 12px;border-bottom:1px solid #f0f0f0;color:#444}.data-table tbody tr:hover{background:#fafbff}
.tag{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:500;margin:1px}
.tag-success{background:#f6ffed;color:#52c41a}.tag-warning{background:#fffbe6;color:#faad14}.tag-danger{background:#fff2f0;color:#ff4d4f}
.tag-info{background:#e6f7ff;color:#1890ff}.tag-default{background:#fafafa;color:#999}.tag-self{background:#f9f0ff;color:#722ed1}.tag-secondary{background:#fff7e6;color:#fa8c16}
.btn{display:inline-block;padding:8px 14px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .2s;text-decoration:none}
.btn-primary{background:#667eea;color:#fff}.btn-success{background:#52c41a;color:#fff}.btn-danger{background:#ff4d4f;color:#fff}.btn-outline{background:#fff;color:#667eea;border-color:#667eea}
.btn-sm{padding:4px 10px;font-size:12px}.btn-xs{padding:2px 6px;font-size:11px}
.filter-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.filter-bar input,.filter-bar select{padding:8px 12px;border:1px solid #ddd;border-radius:6px;font-size:13px}
.pagination{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:16px;font-size:13px}
.pagination button{padding:6px 14px;border:1px solid #ddd;border-radius:6px;background:#fff;cursor:pointer;font-size:13px}.pagination button:disabled{opacity:.4;cursor:not-allowed}
.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:2000;justify-content:center;align-items:center}.modal-overlay.active{display:flex}
.modal{background:#fff;border-radius:16px;padding:28px;width:90%;max-width:720px;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.3);position:relative}.modal-close{position:sticky;top:0;float:right;margin:-8px -8px 8px 8px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;cursor:pointer;font-size:18px;color:#999;background:#f5f5f5;border:none;transition:all .2s;z-index:10}.modal-close:hover{background:#ff4d4f;color:#fff}
.modal h3{margin-bottom:20px;font-size:18px}.modal .btn-row{display:flex;gap:12px;justify-content:flex-end;margin-top:20px}
.form-group{margin-bottom:14px}.form-group label{display:block;margin-bottom:6px;font-weight:500;font-size:13px;color:#555}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:8px;font-size:13px;font-family:inherit;box-sizing:border-box}
.form-group textarea{min-height:70px;resize:vertical}.food-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.food-card-item{background:#fff;border-radius:12px;padding:16px;border:1px solid #eee}.food-card-item.self-owned{border-left:4px solid #722ed1;background:#faf9ff}
.food-card-header{display:flex;justify-content:space-between;align-items:start;margin-bottom:8px}.food-card-title{font-size:15px;font-weight:600}.food-card-body{font-size:13px;color:#555;line-height:1.6}
.chart-container{width:100%;height:350px;margin-bottom:20px}
.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2)}
.login-box{background:#fff;border-radius:16px;padding:48px 40px;width:420px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-box h1{text-align:center;color:#333;margin-bottom:8px;font-size:28px}.login-box .subtitle{text-align:center;color:#888;margin-bottom:32px;font-size:14px}
.login-box .form-group{margin-bottom:20px}.login-box .form-group input{padding:12px 16px;font-size:15px}
.btn-login{width:100%;padding:14px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer}
.error-msg{color:#e74c3c;text-align:center;margin-top:12px;font-size:14px;min-height:20px}
.search-box input{width:240px;padding:8px 14px;border:1px solid #ddd;border-radius:20px;font-size:13px;outline:none}