:root{--primary: #2563eb;--primary-light: #dbeafe;--primary-dark: #1d4ed8;--success: #16a34a;--success-light: #dcfce7;--warning: #ea580c;--warning-light: #ffedd5;--danger: #dc2626;--danger-light: #fee2e2;--bg: #f1f5f9;--card: #ffffff;--border: #e2e8f0;--text: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 6px rgba(0,0,0,.05), 0 2px 4px rgba(0,0,0,.04);--radius: 10px;--radius-sm: 6px;--sidebar-w: 220px;--header-h: 56px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:linear-gradient(180deg,#1e3a5f,#0f2440);color:#fff;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:50}.sidebar-brand{padding:20px 20px 16px;border-bottom:1px solid rgba(255,255,255,.08)}.sidebar-brand h2{font-size:1.1rem;font-weight:700;display:flex;align-items:center;gap:8px}.sidebar-brand p{font-size:.75rem;color:#ffffff80;margin-top:4px}.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;color:#ffffffa6;text-decoration:none;font-size:.9rem;font-weight:500;transition:all .15s;border-left:3px solid transparent}.sidebar-nav a:hover{color:#fff;background:#ffffff0f}.sidebar-nav a.active{color:#fff;background:#ffffff1a;border-left-color:#3b82f6}.sidebar-nav a .icon{font-size:1.1rem;width:24px;text-align:center}.sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:.75rem;color:#ffffff59}.main-content{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column}.topbar{height:var(--header-h);background:var(--card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:40}.topbar h3{font-size:.95rem;font-weight:600}.topbar-right{display:flex;align-items:center;gap:16px;font-size:.85rem;color:var(--text-secondary)}.page{padding:24px 28px;flex:1}.card{background:var(--card);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);border:1px solid var(--border)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.card-header h4{font-size:1rem;font-weight:600}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:20px;margin-bottom:20px}.card-grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:20px}.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border);text-align:center}.stat-card .stat-value{font-size:1.8rem;font-weight:800;color:var(--primary)}.stat-card .stat-value.green{color:var(--success)}.stat-card .stat-value.red{color:var(--danger)}.stat-card .stat-value.orange{color:var(--warning)}.stat-card .stat-label{font-size:.8rem;color:var(--text-secondary);margin-top:4px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);border:none;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .15s;font-family:inherit}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#b91c1c}.btn-sm{padding:5px 12px;font-size:.78rem}.btn-xs{padding:3px 8px;font-size:.72rem;border-radius:4px}.form-group{margin-bottom:14px}.form-group label{display:block;font-size:.82rem;font-weight:600;color:var(--text-secondary);margin-bottom:4px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;font-family:inherit;transition:border-color .15s;background:var(--card)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.data-table{width:100%;border-collapse:collapse;font-size:.85rem}.data-table th{padding:10px 12px;text-align:left;background:#f8fafc;color:var(--text-secondary);font-weight:600;font-size:.78rem;border-bottom:2px solid var(--border)}.data-table td{padding:10px 12px;border-bottom:1px solid var(--border)}.data-table tr:hover td{background:#f8fafc}.data-table .text-right{text-align:right}.data-table .text-center{text-align:center}.tag{display:inline-block;padding:2px 10px;border-radius:10px;font-size:.72rem;font-weight:500}.tag-income{background:var(--success-light);color:var(--success)}.tag-expense{background:var(--danger-light);color:var(--danger)}.tag-transfer{background:var(--primary-light);color:var(--primary)}.tag-refund{background:#ccfbf1;color:#0f766e}.tag-invest{background:#f3e8ff;color:#7c3aed}.tag-credit_cash{background:#fee2e2;color:#dc2626}.tag-credit_repay{background:#dcfce7;color:#16a34a}.tag-credit_installment{background:#ffedd5;color:#ea580c}.tag-credit_bill_split{background:#e0e7ff;color:#4f46e5}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .2s}.modal{background:var(--card);border-radius:var(--radius);padding:28px;width:90%;max-width:520px;max-height:85vh;overflow-y:auto;box-shadow:0 20px 40px #00000026;animation:slideUp .2s}.modal h3{font-size:1.1rem;font-weight:700;margin-bottom:20px}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}.chart-box{position:relative;height:260px}.chart-box-lg{height:320px}.empty-state{text-align:center;padding:48px 20px;color:var(--text-muted)}.empty-state .icon{font-size:3rem;display:block;margin-bottom:12px}.empty-state p{font-size:.9rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@media (max-width: 768px){.sidebar{width:60px}.sidebar-brand h2 span,.sidebar-brand p,.sidebar-nav a span:not(.icon){display:none}.sidebar-nav a{justify-content:center;padding:10px}.main-content{margin-left:60px}.card-grid,.card-grid-3,.form-row{grid-template-columns:1fr}}.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:8px;max-height:200px;overflow-y:auto}.category-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;border:2px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-size:.75rem;transition:all .15s;text-align:center}.category-item:hover,.category-item.selected{border-color:var(--primary);background:var(--primary-light)}.category-item .cat-icon{font-size:1.3rem}.budget-bar-wrap{margin-bottom:12px}.budget-bar-label{display:flex;justify-content:space-between;font-size:.8rem;margin-bottom:4px}.budget-bar-label .name{font-weight:500}.budget-bar-label .value{color:var(--text-secondary)}.budget-bar{height:8px;background:var(--bg);border-radius:4px;overflow:hidden}.budget-bar-fill{height:100%;border-radius:4px;transition:width .3s}.budget-bar-fill.safe{background:var(--success)}.budget-bar-fill.warn{background:var(--warning)}.budget-bar-fill.danger{background:var(--danger)}.sidebar-toggle,.sidebar-overlay{display:none}@media (max-width: 1023px){.sidebar-toggle{display:block;background:none;border:none;font-size:1.5rem;cursor:pointer;padding:4px 8px;color:var(--text-secondary);line-height:1}.sidebar{position:fixed;top:0;left:0;z-index:1000;transform:translate(-100%);transition:transform .25s ease;height:100vh;width:260px}.sidebar.sidebar-open{transform:translate(0)}.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:999;background:#0006}.main-content{margin-left:0!important;width:100%!important}.app-layout{display:block!important}.card-grid{grid-template-columns:1fr!important}.stat-row{grid-template-columns:repeat(2,1fr)!important}.data-table{font-size:.78rem}.data-table th,.data-table td{padding:8px 6px}.modal{max-width:95vw!important;margin:8px!important;max-height:90vh!important}.topbar-date{display:none}.topbar{padding:12px 16px;gap:8px}.topbar h3{font-size:1rem}.page{padding:12px}}@media (max-width: 639px){.stat-row{grid-template-columns:repeat(2,1fr)!important;gap:8px}.stat-card{padding:12px}.stat-value{font-size:1.1rem}.stat-label{font-size:.7rem}.card-grid{grid-template-columns:1fr!important}.card{padding:12px}.card-header{flex-direction:column;align-items:flex-start;gap:4px}.form-row{flex-direction:column}.form-row>div{min-width:auto}.category-grid{grid-template-columns:repeat(4,1fr)!important}.category-item{padding:8px 4px!important;font-size:.72rem!important}.btn{font-size:.82rem;padding:8px 14px}.btn-sm{font-size:.75rem;padding:5px 10px}.btn-xs{font-size:.7rem;padding:3px 7px}.topbar h3{font-size:.95rem}.topbar{padding:10px 12px}.page{padding:10px}}@keyframes syncSpin{to{transform:rotate(360deg)}}