/* 轻记 — 样式 */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
:root {
  --primary: #4f6ef7;
  --primary-dark: #3b56d9;
  --danger: #f0524f;
  --income: #1fa95c;
  --bg: #f5f6fa;
  --card: #fff;
  --text: #22242a;
  --text2: #6b7080;
  --line: #e8eaf0;
  --radius: 14px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif; }
#app { max-width: 640px; margin: 0 auto; min-height: 100vh; padding-bottom: calc(84px + var(--safe-bottom)); }

/* 顶栏 */
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px 6px; }
.topbar h1 { font-size: 20px; margin: 0; }
.topbar .logo { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.topbar .logo .mark { width: 30px; height: 30px; border-radius: 8px; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.nav-tabs { display: flex; gap: 4px; }
.nav-tabs button { border: none; background: transparent; padding: 8px 12px; font-size: 15px; color: var(--text2); border-radius: 10px; cursor: pointer; }
.nav-tabs button.active { color: var(--primary); background: #eef1ff; font-weight: 600; }

.page { padding: 0 16px; }
.page-inner { display: flex; flex-direction: column; gap: 14px; }
.page-inner .card { margin-bottom: 0; }

/* 卡片 */
.card { background: var(--card); border-radius: var(--radius); padding: 16px; margin-bottom: 14px; box-shadow: 0 1px 3px rgba(30, 34, 60, .06); }

/* 概览 */
.overview { display: flex; gap: 10px; margin-bottom: 14px; }
.ov-item { flex: 1; background: var(--card); border-radius: var(--radius); padding: 12px 14px; box-shadow: 0 1px 3px rgba(30,34,60,.06); }
.ov-item .label { font-size: 12px; color: var(--text2); margin-bottom: 4px; }
.ov-item .value { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.ov-item .value.expense { color: var(--text); }
.ov-item .value.income { color: var(--income); }

/* 预算条 */
.budget-line { margin-top: 4px; }
.budget-bar { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin: 8px 0 6px; }
.budget-bar > div { height: 100%; border-radius: 4px; background: var(--primary); transition: width .3s; }
.budget-bar > div.over { background: var(--danger); }
.budget-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text2); }

/* 快捷记账 */
.quick { position: sticky; top: 0; z-index: 20; padding: 8px 16px 12px; background: linear-gradient(var(--bg) 82%, transparent); }
.quick-inner { background: var(--card); border-radius: 16px; padding: 12px 14px; box-shadow: 0 4px 16px rgba(30,34,60,.10); }
.kind-switch { display: inline-flex; background: var(--line); border-radius: 10px; padding: 3px; margin-bottom: 10px; }
.kind-switch button { border: none; background: transparent; padding: 5px 18px; font-size: 14px; border-radius: 8px; cursor: pointer; color: var(--text2); }
.kind-switch button.active { background: #fff; color: var(--text); font-weight: 600; box-shadow: 0 1px 2px rgba(0,0,0,.08); }
.kind-switch button.active[data-kind="1"] { color: var(--income); }
.quick-row { display: flex; gap: 10px; align-items: center; }
.amount-box { flex: 1; display: flex; align-items: baseline; gap: 6px; border-bottom: 2px solid var(--line); padding: 2px 4px 6px; }
.amount-box:focus-within { border-color: var(--primary); }
.amount-box .cny { font-size: 18px; color: var(--text2); }
.amount-box input { border: none; outline: none; font-size: 28px; font-weight: 700; width: 100%; background: transparent; font-variant-numeric: tabular-nums; }
.btn-save { border: none; background: var(--primary); color: #fff; font-size: 16px; font-weight: 600; padding: 12px 22px; border-radius: 12px; cursor: pointer; }
.btn-save:active { background: var(--primary-dark); }
.btn-save:disabled { opacity: .5; }
.cats-row { display: flex; gap: 8px; overflow-x: auto; padding: 12px 2px 2px; scrollbar-width: none; }
.cats-row::-webkit-scrollbar { display: none; }
.cat-chip { flex: 0 0 auto; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 7px 10px; border-radius: 12px; border: 1.5px solid transparent; background: transparent; cursor: pointer; font-size: 12px; color: var(--text2); }
.cat-chip .ic { font-size: 22px; }
.cat-chip.active { border-color: var(--primary); background: #eef1ff; color: var(--primary); font-weight: 600; }
.quick-extra { display: flex; gap: 8px; margin-top: 10px; }
.quick-extra input[type="date"], .quick-extra input[type="text"] { flex: 1; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; font-size: 14px; background: #fafbfe; outline: none; }
.quick-extra input:focus { border-color: var(--primary); }

/* 账单列表 */
.day-group { margin-bottom: 14px; }
.day-head { display: flex; justify-content: space-between; font-size: 13px; color: var(--text2); padding: 2px 4px 8px; }
.tx-list { background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: 0 1px 3px rgba(30,34,60,.06); }
.tx-item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-bottom: 1px solid var(--line); cursor: pointer; position: relative; }
.tx-item:last-child { border-bottom: none; }
.tx-item .ic { width: 38px; height: 38px; border-radius: 10px; background: #f2f3f8; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.tx-item .info { flex: 1; min-width: 0; }
.tx-item .info .name { font-size: 15px; font-weight: 500; }
.tx-item .info .note { font-size: 12px; color: var(--text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.tx-item .amt { font-size: 16px; font-weight: 700; font-variant-numeric: tabular-nums; }
.tx-item .amt.income { color: var(--income); }
.tx-item .del-btn { position: absolute; right: 14px; top: 50%; transform: translateY(-50%) translateX(80px); background: var(--danger); color: #fff; border: none; border-radius: 10px; padding: 8px 14px; font-size: 14px; transition: transform .2s; }
.tx-item.swiped .del-btn { transform: translateY(-50%) translateX(0); }
.tx-item.swiped .ic, .tx-item.swiped .info, .tx-item.swiped .amt { opacity: .35; }
.load-more { display: block; width: 100%; border: none; background: transparent; color: var(--primary); font-size: 14px; padding: 10px; cursor: pointer; }
.empty { text-align: center; color: var(--text2); padding: 30px 0; font-size: 14px; }

/* 统计 */
.stat-month { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 4px; }
.stat-month button { border: 1px solid var(--line); background: #fff; width: 32px; height: 32px; border-radius: 50%; font-size: 16px; cursor: pointer; color: var(--text2); }
.stat-month .m { font-size: 17px; font-weight: 700; min-width: 90px; text-align: center; }
.stat-summary { display: flex; justify-content: space-around; margin: 10px 0 4px; }
.stat-summary .s { text-align: center; }
.stat-summary .s .l { font-size: 12px; color: var(--text2); }
.stat-summary .s .v { font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-summary .s .v.inc { color: var(--income); }
.donut-wrap { display: flex; align-items: center; gap: 16px; }
.legend { flex: 1; display: flex; flex-direction: column; gap: 6px; max-height: 220px; overflow-y: auto; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.legend-item .dot { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.legend-item .ln { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.legend-item .lv { font-variant-numeric: tabular-nums; color: var(--text2); }
.legend-item .lp { color: var(--text2); width: 44px; text-align: right; font-variant-numeric: tabular-nums; }
.card h3 { margin: 0 0 12px; font-size: 15px; }

/* 筛选 */
.filter-row { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.filter-row select, .filter-row input { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; font-size: 14px; background: #fff; outline: none; }
.filter-row input { flex: 1; min-width: 120px; }

/* AI 按钮 */
.ai-row { margin-top: 8px; }
.btn.ai-act { flex: 1; padding: 9px 0; font-size: 14px; background: #eef1ff; color: var(--primary); border: 1px dashed #b9c4fb; }
.btn.ai-act:active { background: #dfe6ff; }
.ai-status { font-size: 13px; color: var(--text2); margin: -4px 0 12px; }

/* 表单 */
.form-row { display: flex; gap: 10px; margin-bottom: 12px; align-items: center; }
.form-row label { width: 72px; font-size: 14px; color: var(--text2); flex-shrink: 0; }
.form-row input, .form-row select { flex: 1; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 15px; outline: none; background: #fff; }
.form-row input:focus { border-color: var(--primary); }
.btn { border: none; border-radius: 10px; padding: 10px 18px; font-size: 15px; cursor: pointer; background: var(--line); color: var(--text); }
.btn.primary { background: var(--primary); color: #fff; font-weight: 600; }
.btn.danger { background: #fdecec; color: var(--danger); }
.btn.small { padding: 6px 12px; font-size: 13px; }

/* 设置页 */
.cat-manage-item { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.cat-manage-item:last-child { border-bottom: none; }
.cat-manage-item .ic { font-size: 22px; width: 34px; text-align: center; }
.cat-manage-item .nm { flex: 1; font-size: 15px; }
.section-title { font-size: 13px; color: var(--text2); margin: 18px 4px 8px; }
textarea.csv-box { width: 100%; height: 110px; border: 1px solid var(--line); border-radius: 10px; padding: 10px; font-size: 12px; font-family: monospace; resize: vertical; outline: none; }

/* 底部导航 */
.tabbar { position: fixed; bottom: 0; left: 0; right: 0; max-width: 640px; margin: 0 auto; display: flex; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border-top: 1px solid var(--line); padding-bottom: var(--safe-bottom); z-index: 30; }
.tabbar button { flex: 1; border: none; background: transparent; padding: 8px 0 6px; display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11px; color: var(--text2); cursor: pointer; }
.tabbar button .ti { font-size: 20px; line-height: 1; }
.tabbar button.active { color: var(--primary); font-weight: 600; }

/* 弹窗 */
.modal-mask { position: fixed; inset: 0; background: rgba(20, 22, 30, .45); z-index: 100; display: flex; align-items: flex-end; justify-content: center; }
.modal { background: #fff; width: 100%; max-width: 640px; border-radius: 18px 18px 0 0; padding: 18px 18px calc(18px + var(--safe-bottom)); max-height: 86vh; overflow-y: auto; }
.modal h3 { margin: 0 0 14px; font-size: 17px; display: flex; justify-content: space-between; align-items: center; }
.modal h3 .x { border: none; background: var(--line); width: 28px; height: 28px; border-radius: 50%; font-size: 14px; cursor: pointer; color: var(--text2); }
.modal-actions { display: flex; gap: 10px; margin-top: 14px; }
.modal-actions .btn { flex: 1; padding: 12px; }

/* Toast */
#toast { position: fixed; left: 50%; bottom: 110px; transform: translateX(-50%) translateY(20px); background: rgba(30,32,40,.92); color: #fff; font-size: 14px; padding: 10px 18px; border-radius: 20px; opacity: 0; transition: all .25s; z-index: 200; pointer-events: none; max-width: 80vw; }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* 登录页 */
.login-wrap { max-width: 360px; margin: 14vh auto 0; padding: 0 20px; text-align: center; }
.login-wrap .big-icon { font-size: 52px; margin-bottom: 6px; }
.login-wrap h2 { margin: 0 0 4px; }
.login-wrap p { color: var(--text2); font-size: 14px; margin: 0 0 22px; }
.login-wrap input { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 13px 14px; font-size: 16px; outline: none; margin-bottom: 12px; background: #fff; }
.login-wrap input:focus { border-color: var(--primary); }
.login-wrap .btn { width: 100%; padding: 13px; font-size: 16px; }

/* 图表容器 */
.chart-scroll { overflow-x: auto; }
svg text { font-family: inherit; }
@media (min-width: 641px) {
  .modal-mask { align-items: center; }
  .modal { border-radius: 18px; width: 480px; }
}