:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --line: #e6e8ec;
  --text: #1c1d21;
  --muted: #7c828c;
  --accent: #2f6bff;
  --warn: #ff6a00;
  --ok: #12915a;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  padding-bottom: 40px;
}

.muted { color: var(--muted); }
.small { font-size: 12px; }
button { font: inherit; cursor: pointer; border-radius: 10px; border: 1px solid var(--line); background: #fff; padding: 8px 14px; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.ghost { background: transparent; }
button:disabled { opacity: 0.6; cursor: default; }
input, select { font: inherit; border: 1px solid var(--line); border-radius: 10px; padding: 7px 10px; background: #fff; color: inherit; }

.topbar {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  background: #fff; border-bottom: 1px solid var(--line); padding: 14px 18px; position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand h1 { font-size: 17px; margin: 0; }
.brand p { margin: 2px 0 0; font-size: 12px; }
.logo { width: 38px; height: 38px; border-radius: 12px; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 700; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.stats { display: flex; gap: 10px; flex-wrap: wrap; padding: 14px 18px 0; }
.chip {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 16px; min-width: 96px;
  display: flex; flex-direction: column;
}
.chip .num { font-size: 22px; font-weight: 700; }
.chip .lab { font-size: 12px; color: var(--muted); }
.chip.warn { border-color: #ffd9bd; background: #fff7f1; }
.chip.warn .num { color: var(--warn); }

.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; padding: 14px 18px; }
.filters label { display: flex; flex-direction: column; font-size: 12px; color: var(--muted); gap: 4px; }
.filters .grow { flex: 1 1 220px; }
.filters input, .filters select { min-width: 120px; width: 100%; }

.orders { display: flex; flex-direction: column; gap: 12px; padding: 0 18px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.card-head { display: flex; justify-content: space-between; gap: 10px; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.card-head-left, .card-head-right { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.badge { border-radius: 999px; padding: 2px 10px; font-size: 12px; border: 1px solid transparent; }
.badge-paid { background: #fff2e6; color: var(--warn); border-color: #ffd9bd; }
.badge-unpaid { background: #eef1f6; color: #556070; border-color: #dde2ea; }
.badge-other { background: #eaf7f0; color: var(--ok); border-color: #cdeadd; }
.shop { font-weight: 600; }
.price { font-weight: 700; }
.copy { font-family: ui-monospace, SFMono-Regular, monospace; font-size: 12px; padding: 3px 8px; color: var(--muted); }
.copy.copied { color: var(--ok); border-color: var(--ok); }

.buyer { padding: 8px 14px; border-bottom: 1px solid var(--line); display: flex; gap: 10px; flex-wrap: wrap; font-size: 13px; }
.buyer-name { font-weight: 600; }
.buyer-addr { color: var(--muted); flex: 1 1 260px; }
.note { width: 100%; color: var(--warn); }

.items { display: flex; flex-direction: column; }
.item { display: flex; gap: 12px; padding: 12px 14px; align-items: flex-start; border-top: 1px solid #f1f2f5; }
.item:first-child { border-top: none; }
.thumb { width: 64px; height: 64px; border-radius: 10px; object-fit: cover; background: #f1f2f5; flex: none; }
.thumb.placeholder { display: grid; place-items: center; font-size: 11px; color: var(--muted); }
.item-main { flex: 1 1 auto; min-width: 0; }
.item-name { font-weight: 600; }
.item-sku { font-size: 13px; color: #444a55; margin-top: 2px; }
.item-sku div { white-space: pre-wrap; }
.item-meta { font-size: 12px; margin-top: 4px; }
.item-track { display: flex; gap: 8px; align-items: center; flex: none; }
.item-track input { width: 150px; font-family: ui-monospace, SFMono-Regular, monospace; }
.item-track input.saved { border-color: var(--ok); box-shadow: 0 0 0 2px rgba(18, 145, 90, 0.12); }
.ship { background: var(--accent); border-color: var(--accent); color: #fff; }

.empty { background: #fff; border: 1px dashed var(--line); border-radius: var(--radius); padding: 40px; text-align: center; }
.footer-note { padding: 12px 18px; font-size: 12px; }

.login-mask { position: fixed; inset: 0; background: rgba(20, 22, 26, 0.55); display: grid; place-items: center; z-index: 20; }
.login-mask[hidden] { display: none; }

/* 入口返回链接 / 利润核对 */
.backlink { align-self: center; color: var(--accent); text-decoration: none; font-size: 14px; margin-right: 4px; }
.chip.ok { border-color: #cdeadd; background: #eefaf4; }
.chip.ok .num { color: var(--ok); }
.pos { color: var(--ok); }
.neg { color: #d93636; }
.mono { font-family: ui-monospace, SFMono-Regular, monospace; font-size: 12px; }
.nowrap { white-space: nowrap; font-size: 12px; }
.small { font-size: 12px; }

.days { padding: 4px 18px 12px; }
.day-title { font-size: 14px; margin: 6px 0 8px; color: var(--muted); font-weight: 600; }
.day-list { display: flex; flex-direction: column; gap: 6px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.day-row { display: grid; grid-template-columns: 92px 1fr 96px 1fr; gap: 10px; align-items: center; font-size: 13px; }
.day-row .day { color: var(--muted); font-family: ui-monospace, monospace; }
.bar-wrap { background: #f1f2f5; border-radius: 999px; height: 8px; overflow: hidden; }
.bar { display: block; height: 100%; background: linear-gradient(90deg, #7fe0b0, var(--ok)); border-radius: 999px; }
.bar.neg { background: linear-gradient(90deg, #ffb0b0, #d93636); }
.day-row .val { text-align: right; font-weight: 600; }

.profit-wrap { padding: 0 18px; overflow-x: auto; }
.profit-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: 13px; }
.profit-table th, .profit-table td { padding: 9px 10px; border-bottom: 1px solid #f1f2f5; text-align: left; vertical-align: top; }
.profit-table th { background: #fafbfd; color: var(--muted); font-weight: 600; white-space: nowrap; }
.profit-table tr.row-warn { background: #fffdf7; }
.tag-warn { color: #b4500a; background: #fff4ea; border: 1px solid #ffd9bd; border-radius: 999px; padding: 1px 8px; font-size: 12px; }
.note-banner { margin: 6px 18px 0; padding: 10px 14px; background: #fff7f1; border: 1px solid #ffd9bd; border-radius: 12px; color: #b4500a; font-size: 13px; }
.login-box { background: #fff; padding: 26px; border-radius: 16px; width: min(360px, 90vw); display: flex; flex-direction: column; gap: 10px; }
.login-box h1 { margin: 0; font-size: 20px; }
.login-box p { margin: 0; }
.login-box input { padding: 10px 12px; }
.login-box button { background: var(--accent); color: #fff; border-color: var(--accent); padding: 10px; }
.error { color: #d93636; font-size: 13px; min-height: 18px; }

@media (max-width: 760px) {
  .item { flex-wrap: wrap; }
  .item-track { width: 100%; }
  .item-track input { flex: 1 1 auto; width: auto; }
  .orders, .filters, .stats { padding-left: 12px; padding-right: 12px; }
}