:root{
    --primary:#f59e0b;
    --primary-dark:#d97706;
    --primary-light:#fef3c7;
    --bg:#fffbeb;
    --card:#ffffff;
    --text:#292524;
    --muted:#78716c;
    --line:#f5e6c8;
    --danger:#ef4444;
    --warn:#f59e0b;
    --ok:#10b981;
  }
  *{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
  html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.5}
  body{overflow-x:hidden;-webkit-font-smoothing:antialiased;padding-bottom:env(safe-area-inset-bottom);padding-top:env(safe-area-inset-top)}
  button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
  input,select,textarea{font-family:inherit;font-size:15px}
  .container{max-width:640px;margin:0 auto;padding:0 16px}
  .card{background:var(--card);border-radius:14px;box-shadow:0 1px 3px rgba(15,23,42,.06);padding:16px;margin-bottom:12px}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border-radius:10px;font-weight:600;transition:transform .08s,background .15s;min-height:42px}
  .btn:active{transform:scale(.97)}
  .btn-primary{background:var(--primary);color:#fff}
  .btn-primary:active{background:var(--primary-dark)}
  .btn-ghost{background:var(--primary-light);color:var(--primary-dark)}
  .btn-danger{background:#fef2f2;color:var(--danger)}
  .btn-block{width:100%}
  .input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;outline:none;transition:border-color .15s}
  .input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
  .label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
  .tag{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:999px;font-size:12px;background:var(--primary-light);color:var(--primary-dark);font-weight:500}
  .tag-ok{background:#dcfce7;color:#15803d}
  .tag-warn{background:#fef3c7;color:#a16207}
  .tag-danger{background:#fee2e2;color:#b91c1c}
  .tag-muted{background:#f1f5f9;color:#475569}

  .tabbar{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);display:flex;justify-content:space-around;align-items:flex-end;padding:4px 4px calc(4px + env(safe-area-inset-bottom));z-index:50;height:64px}
  .tabbar button{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--muted);font-size:10px;border-radius:8px;transition:color .15s}
  .tabbar button.active{color:var(--primary)}
  .tabbar button .ic{font-size:22px;line-height:1}
  .tabbar button svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:stroke-width .15s}
  .tabbar button.active svg{stroke-width:2.4}
  .tabbar .add-btn{position:relative;top:-18px;width:52px;height:52px;min-width:52px;flex:none;border-radius:50%;background:linear-gradient(135deg,#f59e0b,#fbbf24);color:#fff;box-shadow:0 4px 14px rgba(245,158,11,.45);font-size:30px;align-self:center;display:flex;align-items:center;justify-content:center;margin:0 6px;border:none}
  .tabbar .add-btn svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:2.8;stroke-linecap:round}
  .tabbar .add-btn:active{transform:scale(.92)}

  .page{display:none;padding:12px 16px 100px}
  .page.active{display:block}
  .page-title{font-size:22px;font-weight:700;margin:8px 0 14px}
  .btn-back{width:36px;height:36px;border-radius:10px;background:#f1f5f9;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#64748b}
  .btn-back:active{background:#e2e8f0}

  #setup{min-height:100vh;background:linear-gradient(180deg,#fef3c7 0%,#fffbeb 100%);display:flex;align-items:center;padding:20px}
  #setup .box{width:100%;max-width:480px;margin:0 auto;background:#fff;border-radius:18px;padding:24px;box-shadow:0 8px 24px rgba(245,158,11,.12)}
  #setup h1{font-size:24px;margin:0 0 4px;color:var(--primary-dark)}
  #setup .sub{color:var(--muted);margin-bottom:18px;font-size:13px}

  .cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px}
  .cat{aspect-ratio:1;border-radius:12px;background:#f1f5f9;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:6px;text-align:center;cursor:pointer;transition:all .15s;border:2px solid transparent;font-size:12px;color:#334155;overflow:hidden}
  .cat:active{transform:scale(.96)}
  .cat.active{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);font-weight:600}
  .cat .ic{font-size:24px;line-height:1}
  .cat span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}

  .exp-item{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
  .exp-item:last-child{border-bottom:none}
  .exp-ic{width:36px;height:36px;border-radius:10px;background:#f1f5f9;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
  .exp-main{flex:1;min-width:0}
  .exp-cat{font-weight:600;font-size:14px}
  .exp-meta{font-size:12px;color:var(--muted);margin-top:2px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
  .exp-amount{font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;color:var(--text);flex-shrink:0}
  .exp-actions{display:flex;gap:4px;flex-shrink:0}
  .exp-actions button{padding:4px 8px;border-radius:6px;font-size:11px;color:var(--muted);background:#f1f5f9}
  .exp-actions button:active{background:#e2e8f0}

  .modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:100;display:none;align-items:flex-end;justify-content:center;padding:0;animation:fadeIn .2s}
  .modal-bg.show{display:flex}
  .install-steps{display:flex;flex-direction:column;gap:10px;text-align:left;font-size:14px;line-height:1.65}
  .install-note{color:var(--muted);font-size:12px}
  @keyframes fadeIn{from{opacity:0}to{opacity:1}}
  @keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
  .modal{width:100%;max-width:640px;background:#fff;border-radius:18px 18px 0 0;padding:18px 18px calc(18px + env(safe-area-inset-bottom));max-height:90vh;overflow-y:auto;animation:slideUp .25s}
  .modal-handle{width:40px;height:4px;background:var(--line);border-radius:2px;margin:0 auto 14px}
  .modal h2{font-size:18px;margin:0 0 14px;font-weight:700}

  .amount-display{background:var(--primary-light);border-radius:14px;padding:18px;text-align:center;margin-bottom:14px}
  .amount-display .cur{font-size:20px;color:var(--primary-dark);font-weight:600;vertical-align:top;margin-right:2px}
  .amount-display .val{font-size:42px;font-weight:700;color:var(--primary-dark);font-variant-numeric:tabular-nums;line-height:1}
  .keypad{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-top:8px}
  .keypad button{aspect-ratio:1.2;background:#f1f5f9;border-radius:10px;font-size:20px;font-weight:600;color:var(--text);transition:background .1s}
  .keypad button:active{background:#e2e8f0}
  .keypad .key-fn{background:#fff;color:var(--primary);border:1px solid var(--line)}
  .keypad .key-ok{background:var(--primary);color:#fff}

  .progress{height:8px;background:#f1f5f9;border-radius:4px;overflow:hidden;margin-top:6px}
  .progress-bar{height:100%;background:linear-gradient(90deg,#f59e0b,#fbbf24);border-radius:4px;transition:width .3s}
  .progress-bar.warn{background:linear-gradient(90deg,#f59e0b,#f97316)}
  .progress-bar.danger{background:linear-gradient(90deg,#ef4444,#dc2626)}

  .budget-hero{background:linear-gradient(135deg,#f59e0b 0%,#f97316 100%);color:#fff;border-radius:18px;padding:20px;margin-bottom:14px;box-shadow:0 4px 16px rgba(245,158,11,.25)}
  .budget-hero .lbl{font-size:13px;opacity:.85}
  .budget-hero .big{font-size:36px;font-weight:700;margin:4px 0;font-variant-numeric:tabular-nums;line-height:1.1}
  .budget-hero .sub{font-size:13px;opacity:.9;display:flex;justify-content:space-between;margin-top:6px}
  .budget-hero .bar{height:6px;background:rgba(255,255,255,.3);border-radius:3px;margin-top:10px;overflow:hidden}
  .budget-hero .bar > i{display:block;height:100%;background:#fff;border-radius:3px;transition:width .3s}

  .stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}
  .stat{background:#fff;border-radius:12px;padding:12px;text-align:center}
  .stat .n{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text)}
  .stat .l{font-size:11px;color:var(--muted);margin-top:2px}

  .chart-wrap{position:relative;height:240px}

  .filter{display:flex;gap:6px;overflow-x:auto;padding:4px 0;margin-bottom:8px;-webkit-overflow-scrolling:touch}
  .filter::-webkit-scrollbar{display:none}
  .filter button{flex-shrink:0;padding:6px 14px;border-radius:999px;background:#f1f5f9;font-size:13px;color:var(--muted);white-space:nowrap}
  .filter button.active{background:var(--primary);color:#fff}

  .period{display:flex;background:#f1f5f9;border-radius:10px;padding:3px;margin-bottom:12px}
  .period button{flex:1;padding:8px 0;border-radius:8px;font-size:13px;color:var(--muted);font-weight:600}
  .period button.active{background:#fff;color:var(--primary);box-shadow:0 1px 3px rgba(0,0,0,.08)}

  .empty{text-align:center;padding:40px 20px;color:var(--muted);font-size:14px}
  .empty .ic{font-size:48px;opacity:.4;display:block;margin-bottom:8px}

  .toast{position:fixed;top:80px;left:50%;transform:translateX(-50%);background:rgba(15,23,42,.9);color:#fff;padding:10px 18px;border-radius:10px;font-size:14px;z-index:200;opacity:0;transition:opacity .2s;pointer-events:none;max-width:80%;text-align:center}
  .toast.show{opacity:1}

  .sync-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ok);margin-right:4px;vertical-align:middle}
  .sync-dot.pending{background:var(--warn);animation:pulse 1.2s infinite}
  .sync-dot.error{background:var(--danger)}
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

  .row{display:flex;align-items:center;gap:8px;margin-bottom:10px}
  .row .input{flex:1}
  .field{margin-bottom:14px}

  .switch-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
  .switch-row:last-child{border-bottom:none}
  .switch{position:relative;width:44px;height:24px;background:#cbd5e1;border-radius:12px;transition:background .2s;cursor:pointer;flex-shrink:0}
  .switch::after{content:'';position:absolute;left:2px;top:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 2px rgba(0,0,0,.2)}
  .switch.on{background:var(--primary)}
  .switch.on::after{transform:translateX(20px)}

  details{background:#f8fafc;border-radius:10px;padding:10px 12px;margin-bottom:8px}
  details summary{cursor:pointer;font-weight:600;font-size:14px;outline:none;list-style:none}
  details summary::-webkit-details-marker{display:none}
  details summary::before{content:'\25B8';display:inline-block;margin-right:6px;transition:transform .2s;font-size:11px}
  details[open] summary::before{transform:rotate(90deg)}
  details .body{padding-top:8px;font-size:13px;color:var(--muted);line-height:1.7}

  .payer-chip{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;border-radius:999px;background:#f1f5f9;font-size:13px;color:#334155;font-weight:500}
  .payer-chip.active{background:var(--primary-light);color:var(--primary-dark)}

  .cat-mgr-item{display:flex;align-items:center;gap:8px;padding:10px 0;border-bottom:1px solid var(--line);transition:box-shadow .15s,opacity .15s}
  .cat-mgr-item:last-child{border-bottom:none}
  .cat-mgr-item.dragging{opacity:.4;pointer-events:none}
  .cat-mgr-item.drag-over{border-top:2px solid var(--primary);padding-top:8px}
  .cat-mgr-drag{cursor:grab;flex-shrink:0;width:24px;height:36px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:18px;line-height:1;user-select:none;-webkit-user-select:none;touch-action:none}
  .cat-mgr-drag:active{cursor:grabbing}
  .cat-mgr-ic{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;cursor:pointer}
  .cat-mgr-name{flex:1;font-weight:600;font-size:14px;min-width:0}
  .cat-mgr-budget{width:70px;text-align:right;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
  .cat-mgr-move{padding:4px 6px;border-radius:6px;font-size:12px;color:var(--muted);background:#f1f5f9;flex-shrink:0;line-height:1;min-width:28px;text-align:center}
  .cat-mgr-move:active{background:#e2e8f0}
  .cat-mgr-del{padding:4px 8px;border-radius:6px;font-size:11px;color:var(--danger);background:#fef2f2;flex-shrink:0}

  .emoji-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin-top:8px;max-height:200px;overflow-y:auto}
  .emoji-grid button{aspect-ratio:1;border-radius:8px;background:#f1f5f9;font-size:22px;display:flex;align-items:center;justify-content:center}
  .emoji-grid button:active{background:#e2e8f0}
  .emoji-grid button.active{background:var(--primary-light);border:2px solid var(--primary)}

  .color-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;margin-top:8px}
  .color-grid button{aspect-ratio:1;border-radius:8px;border:2px solid transparent}
  .color-grid button.active{border-color:#fff;box-shadow:0 0 0 2px var(--primary)}

  .section-hint{font-size:12px;color:var(--muted);margin:8px 0}

  .install-banner{background:linear-gradient(135deg,#f59e0b,#fbbf24);color:#fff;border-radius:14px;padding:16px;margin-bottom:14px;display:flex;align-items:center;gap:14px;cursor:pointer;box-shadow:0 4px 12px rgba(245,158,11,.3);transition:transform .1s}
  .install-banner:active{transform:scale(.98)}
  .install-banner .ib-ic{font-size:36px;flex-shrink:0}
  .install-banner .ib-txt{flex:1}
  .install-banner .ib-txt .ib-t{font-weight:700;font-size:16px}
  .install-banner .ib-txt .ib-s{font-size:12px;opacity:.85;margin-top:2px}
  .install-banner .ib-go{font-size:22px;opacity:.7}

  .install-step{display:flex;gap:10px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line)}
  .install-step:last-child{border-bottom:none}
  .install-step .num{width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0}
  .install-step .si-txt{font-size:14px;line-height:1.6;color:#334155}
  .install-step .si-txt b{color:var(--primary-dark)}
  .os-badge{display:inline-block;padding:3px 10px;border-radius:6px;font-size:12px;font-weight:600;margin-bottom:8px}
  .os-badge.android{background:#dcfce7;color:#15803d}
  .os-badge.ios{background:#fef3c7;color:#d97706}
  .os-badge.other{background:#f1f5f9;color:#475569}