/* 明亮后台风：白卡 + 浅绿灰底，主色深绿只用在主按钮、选中态和「未付」数字 */
:root {
  color-scheme: light;
  --bg: #F4F6F3;
  --surface: #FDFEFD;
  --sunk: #EEF2EE;
  --ink: #16211B;
  --ink2: #435249;
  --ink3: #66746B;
  --line: #E1E7E2;
  --line2: #C9D3CC;
  --pri: #1E6B47;
  --pri-h: #185A3B;
  --pri-weak: #E6F1EA;
  --warn: #8A5309;
  --warn-bg: #FCF0DA;
  --danger: #A8372B;
  --danger-bg: #FBE9E6;
  --r1: 8px;
  --r2: 12px;
  --s1: 0 1px 2px rgba(22, 33, 27, .06);
  --s2: 0 8px 24px rgba(22, 33, 27, .12);
  --f13: 13px; --f16: 16px; --f20: 20px; --f25: 25px; --f31: 31px;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-size: var(--f16); line-height: 1.6; }
h1, h2, h3 { margin: 0; line-height: 1.2; font-weight: 600; }
button, input, textarea, select { font: inherit; color: inherit; }
input, textarea, select { font-size: 16px; }
.num, td.n, .money { font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--pri); outline-offset: 2px; }
[hidden] { display: none !important; }
.muted { color: var(--ink3); font-size: var(--f13); margin: 0; }

/* 顶栏 */
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 16px; height: 56px; padding: 0 max(16px, env(safe-area-inset-left)); background: rgba(244, 246, 243, .92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-weight: 600; }
.top-r { margin-left: auto; display: flex; gap: 4px; }
main { max-width: 1280px; margin: 0 auto; padding: 24px 16px 96px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 40px; padding: 0 16px; border-radius: var(--r1); border: 1px solid var(--line2); background: var(--surface); cursor: pointer; white-space: nowrap; font-size: var(--f16); text-decoration: none; color: var(--ink); transition: background-color .15s ease-out, border-color .15s ease-out; }
.btn:hover { background: var(--sunk); }
.btn.pri { background: var(--pri); border-color: var(--pri); color: #FBFDFB; font-weight: 600; }
.btn.pri:hover { background: var(--pri-h); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.wide { width: 100%; }
.link { background: none; border: 0; padding: 8px; color: var(--ink2); cursor: pointer; border-radius: var(--r1); font-size: var(--f16); }
.link:hover { color: var(--ink); background: var(--sunk); }
.link.danger { color: var(--danger); }
.back { display: inline-flex; color: var(--ink2); text-decoration: none; font-size: var(--f13); padding: 4px 0; margin-bottom: 8px; }
.back:hover { color: var(--ink); }

/* 表单 */
.stack > * + * { margin-top: 16px; }
.fld { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.fld > span { font-size: var(--f13); color: var(--ink2); }
.fld small { color: var(--ink3); font-size: var(--f13); }
.fld input, .fld textarea, .fld select { width: 100%; min-width: 0; height: 40px; padding: 0 12px; border: 1px solid var(--line2); border-radius: var(--r1); background: #FFFEFC; }
.fld textarea { height: auto; padding: 8px 12px; resize: vertical; line-height: 1.5; }
.fld input:focus, .fld textarea:focus { border-color: var(--pri); outline: none; box-shadow: 0 0 0 3px var(--pri-weak); }
.fld input[aria-invalid="true"] { border-color: var(--danger); }
.err { color: var(--danger); font-size: var(--f13); margin: 0; min-height: 0; }
.err:empty { display: none; }
.hint { margin: -8px 0 0; font-size: var(--f13); color: var(--ink3); }
.hint:empty { display: none; }
.hint.warn { color: var(--warn); }
.grid { display: grid; gap: 12px; }
.g2 { grid-template-columns: minmax(0, 160px) minmax(0, 1fr); }
.g2b { grid-template-columns: minmax(0, 1fr) minmax(0, 120px); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.dlg-b > * + * { margin-top: 16px; }
.flagfld input { background: var(--warn-bg); border-color: #EBCF9C; }

/* 登录 */
.login { max-width: 360px; margin: 10vh auto 0; text-align: center; }
.login h1 { font-size: var(--f25); margin: 8px 0 32px; }
.login form { text-align: left; background: var(--surface); padding: 24px; border-radius: var(--r2); box-shadow: var(--s1); border: 1px solid var(--line); }

/* 页头 */
.ph { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.ph h1 { font-size: var(--f31); letter-spacing: -.01em; }
.ph .sub { color: var(--ink2); margin: 4px 0 0; }
.ph .acts { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.title-row { display: flex; align-items: baseline; gap: 8px; }

/* 客户卡片 */
.search { max-width: 320px; margin-bottom: 16px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.ccard { display: block; text-decoration: none; color: inherit; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r2); padding: 16px 20px; box-shadow: var(--s1); transition: border-color .15s ease-out, transform .15s ease-out; }
.ccard:hover { border-color: var(--line2); transform: translateY(-1px); }
.ccard h3 { font-size: var(--f20); }
.ccard .ph2 { font-size: var(--f13); color: var(--ink3); margin-top: 4px; min-height: 1.6em; }
.ccard .big { margin-top: 16px; font-size: var(--f25); font-weight: 600; color: var(--pri); line-height: 1.2; }
.ccard .big.zero { color: var(--ink3); }
.ccard .lbl { font-size: var(--f13); color: var(--ink3); }
.ccard .meta { display: flex; gap: 12px; flex-wrap: wrap; font-size: var(--f13); color: var(--ink2); margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }
.chip { display: inline-flex; align-items: center; height: 24px; padding: 0 8px; border-radius: 999px; font-size: var(--f13); background: var(--warn-bg); color: var(--warn); white-space: nowrap; }

/* 统计 */
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 8px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r2); padding: 16px 20px; }
.stat .lbl { font-size: var(--f13); color: var(--ink2); }
.stat .v { font-size: var(--f25); font-weight: 600; line-height: 1.3; margin-top: 4px; }
.stat.key { background: var(--pri); border-color: var(--pri); color: #FBFDFB; }
.stat.key .lbl { color: #D3E7DA; }
.cap { font-size: var(--f13); color: var(--ink3); margin: 0 0 24px; }
.cap b { color: var(--ink2); font-weight: 600; }

/* 工具条 */
.bar { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.bar .fld input { width: 152px; }
.seg { display: inline-flex; background: var(--sunk); border-radius: var(--r1); padding: 4px; gap: 2px; }
.seg button { border: 0; background: none; height: 32px; padding: 0 12px; border-radius: 6px; cursor: pointer; color: var(--ink2); font-size: var(--f13); white-space: nowrap; }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: var(--s1); font-weight: 600; }
.toggle { display: inline-flex; align-items: center; gap: 8px; height: 40px; font-size: var(--f13); color: var(--ink2); cursor: pointer; white-space: nowrap; }
.toggle input { width: 16px; height: 16px; accent-color: var(--pri); }
.bar .sp { flex: 1; }

/* 流水表 */
.tbl-wrap { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r2); overflow-x: auto; box-shadow: var(--s1); }
table.ledger { border-collapse: collapse; width: 100%; min-width: 1240px; font-size: 14px; table-layout: fixed; }
.ledger th { position: sticky; top: 0; background: var(--sunk); color: var(--ink2); font-weight: 600; font-size: var(--f13); text-align: left; padding: 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.ledger td { padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
.ledger tr:last-child td { border-bottom: 0; }
.ledger tbody tr { cursor: pointer; }
.ledger tbody tr:hover td { background: #F7FAF7; }
.ledger .n { text-align: right; white-space: nowrap; }
.ledger .d { white-space: nowrap; color: var(--ink2); }
.ledger .neg { color: var(--danger); }
.ledger .pd { color: var(--pri); }
.ledger .wb { font-size: var(--f13); color: var(--ink2); }
.ledger .note { font-size: var(--f13); color: var(--ink2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ledger .flagdot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #D99A2B; margin-left: 6px; vertical-align: 2px; }
.ledger tfoot td { background: var(--sunk); font-weight: 600; border-top: 1px solid var(--line2); border-bottom: 0; }

/* 手机：一行一张 */
.rows { display: none; }
.row { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r2); padding: 12px 16px; cursor: pointer; }
.row + .row { margin-top: 8px; }
.row .l1 { display: flex; gap: 8px; align-items: baseline; }
.row .l1 .p { font-weight: 600; flex: 1; min-width: 0; overflow-wrap: anywhere; }
.row .l1 .a { font-weight: 600; white-space: nowrap; }
.row .l2, .row .l3 { font-size: var(--f13); color: var(--ink2); margin-top: 4px; overflow-wrap: anywhere; }
.row .l3 { color: var(--ink3); }
.row .chip { margin-top: 8px; height: auto; padding: 2px 8px; white-space: normal; border-radius: var(--r1); }
.daygrp { font-size: var(--f13); color: var(--ink3); margin: 16px 4px 8px; }
.daygrp:first-child { margin-top: 0; }

/* 空 / 加载 / 出错 */
.state { text-align: center; padding: 64px 16px; color: var(--ink2); background: var(--surface); border: 1px dashed var(--line2); border-radius: var(--r2); }
.state h3 { font-size: var(--f20); color: var(--ink); margin-bottom: 8px; }
.state p { margin: 0 0 16px; }
.state.loading { border-style: solid; color: var(--ink3); }

/* 弹窗 */
.dlg { border: 0; padding: 0; border-radius: var(--r2); box-shadow: var(--s2); width: min(640px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); background: var(--surface); color: var(--ink); }
.dlg.sm { width: min(440px, calc(100vw - 32px)); }
.dlg::backdrop { background: rgba(22, 33, 27, .36); }
.dlg form { display: flex; flex-direction: column; max-height: calc(100dvh - 48px); }
.dlg-h { display: flex; align-items: center; padding: 16px 20px 8px 24px; }
.dlg-h h2 { font-size: var(--f20); }
.x { margin-left: auto; width: 40px; height: 40px; border: 0; background: none; font-size: 24px; line-height: 1; color: var(--ink3); cursor: pointer; border-radius: var(--r1); }
.x:hover { background: var(--sunk); color: var(--ink); }
.dlg-b { padding: 8px 24px 16px; overflow-y: auto; }
.dlg-f { display: flex; align-items: center; gap: 8px; padding: 12px 24px 16px; border-top: 1px solid var(--line); }
.dlg-f .sp { flex: 1; }
.hist summary { cursor: pointer; font-size: var(--f13); color: var(--ink2); }
.hist ol { list-style: none; padding: 0; margin: 8px 0 0; font-size: var(--f13); color: var(--ink2); }
.hist li { padding: 8px 0; border-top: 1px solid var(--line); }
.hist li b { color: var(--ink); font-weight: 600; }

.toast { position: fixed; left: 50%; bottom: max(24px, env(safe-area-inset-bottom)); transform: translate(-50%, 8px); background: var(--ink); color: #F4F6F3; padding: 8px 16px; border-radius: var(--r1); font-size: var(--f13); opacity: 0; pointer-events: none; transition: opacity .2s ease-out, transform .2s ease-out; z-index: 50; }
.toast.on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 结算单（照原 Excel 版式） ---------- */
.pbar { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.pbar .fld input { width: 152px; }
.pbar .sp { flex: 1; }
.paper-wrap { overflow-x: auto; background: var(--sunk); border-radius: var(--r2); padding: 16px; }
.paper { background: #fff; color: #111; width: 1120px; margin: 0 auto; padding: 16px; font-size: 13px; line-height: 1.4; box-shadow: var(--s1); }
.paper .hd { display: grid; grid-template-columns: 120px 1fr; align-items: center; gap: 12px; }
.paper .hd img { width: 110px; height: auto; }
.paper .t1 { font-size: 30px; font-weight: 400; letter-spacing: .02em; }
.paper .t1 em { font-style: normal; color: #D0021B; }
.paper .t2 { display: flex; gap: 48px; margin-top: 8px; font-size: 14px; }
.paper .t2 b { color: #D0021B; font-weight: 400; }
.paper .band { display: grid; grid-template-columns: 1.4fr 1fr 1.4fr; margin-top: 12px; border: 1px solid #111; }
.paper .band > div { padding: 10px 16px; font-size: 18px; display: flex; gap: 12px; align-items: baseline; justify-content: center; }
.paper .band .b1 { background: #00B050; }
.paper .band .b2 { background: #F4B0B0; }
.paper .band .b3 { background: #000; color: #fff; font-weight: 600; }
.paper .bank { background: #FDF3DC; border: 1px solid #111; border-top: 0; padding: 4px 16px; font-size: 13px; letter-spacing: .04em; }
.paper .prev { margin: 8px 0 0; color: #D0021B; font-size: 13px; }
.paper table { width: 100%; border-collapse: collapse; margin-top: 12px; table-layout: fixed; }
.paper th, .paper td { border: 1px solid #333; padding: 3px 4px; font-size: 12px; overflow-wrap: anywhere; vertical-align: top; }
.paper th { background: #F2F2F2; font-weight: 600; }
.paper td.n { text-align: right; white-space: nowrap; }
.paper .foot { margin-top: 8px; font-size: 12px; color: #555; text-align: right; }

@media (max-width: 760px) {
  main { padding: 16px 16px 96px; }
  .ph { margin-bottom: 16px; }
  .ph h1 { font-size: var(--f25); }
  .ph .acts { margin-left: 0; width: 100%; }
  .ph .acts .btn { flex: 1; padding: 0 8px; }
  .stats { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; }
  .stat { padding: 12px 16px; }
  .stat .v { font-size: var(--f20); overflow-wrap: anywhere; }
  .stat.key { grid-column: 1 / -1; grid-row: 1; }
  .stat.key .v { font-size: var(--f25); }
  .tbl-wrap { display: none; }
  .rows { display: block; }
  .bar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
  .bar .seg { grid-column: 1 / -1; }
  .bar .seg button { flex: 1; }
  .bar .toggle { grid-column: 1 / -1; height: auto; }
  .bar .fld input { width: 100%; }
  .g2, .g2b { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .dlg { width: 100vw; max-width: 100vw; max-height: 100dvh; height: 100dvh; border-radius: 0; margin: 0; }
  .dlg.sm { width: 100vw; }
  .dlg form { max-height: 100dvh; height: 100%; }
  .dlg-b { flex: 1; }
  .dlg-f { padding-bottom: max(16px, env(safe-area-inset-bottom)); }
  .top-r .link { padding: 8px 6px; font-size: var(--f13); }
  .pbar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
  .pbar .fld input { width: 100%; }
  .pbar .sp { display: none; }
  .pbar .toggle { height: auto; align-self: end; min-height: 40px; }
  .pbar .btn { width: 100%; }
  .paper-wrap { padding: 8px; overflow: hidden; }
}

@media print {
  @page { size: A4 landscape; margin: 8mm; }
  body { background: #fff; }
  .no-print, .top, .pbar, .back, .toast { display: none !important; }
  main { padding: 0; max-width: none; }
  .paper-wrap { padding: 0; background: none; overflow: visible; }
  .paper { width: auto; box-shadow: none; padding: 0; zoom: 1 !important; }
  .paper .band > div, .paper .bank, .paper th { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .paper tr { break-inside: avoid; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}