:root {
  color-scheme: light;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  color: #142033;
  background: #f2f5f9;
  --navy: #10243e;
  --navy-2: #183654;
  --emerald: #78b7dc;
  --emerald-dark: #5e9fc7;
  --ink: #142033;
  --muted: #66758a;
  --line: #dbe3ec;
  --soft: #f6f8fb;
  --white: #ffffff;
  --danger: #a93434;
  --shadow: 0 12px 32px rgb(16 36 62 / 8%);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  min-width: 320px;
  background-color: #f2f5f9;
  background-image: linear-gradient(rgb(242 245 249 / 78%), rgb(242 245 249 / 90%)), url("brand-background.49560e556bf7.jpg");
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  font-size: 1rem;
  line-height: 1.5;
}
button, input, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, .table-scroll:focus-visible {
  outline: 3px solid rgb(8 127 107 / 24%);
  outline-offset: 2px;
}
button:disabled { cursor: wait; opacity: .68; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 68px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 2px 12px rgb(16 36 62 / 18%);
}
.brand-lockup, .account-actions { display: flex; align-items: center; }
.brand-lockup { gap: 12px; }
.brand-mark {
  display: block;
  flex: 0 0 auto;
  width: 68px;
  height: 44px;
  border: 1px solid rgb(255 255 255 / 28%);
  border-radius: 4px;
  background: #fff url("company-logo.3725601e3e02.jpg") center / contain no-repeat;
}
.brand-lockup strong, .brand-lockup span { display: block; }
.brand-lockup strong { font-size: 1.05rem; letter-spacing: .04em; }
.brand-lockup div > span { margin-top: 1px; color: #b9c7d6; font-size: .78rem; }
.account-actions { gap: 14px; }
.account-name { color: #d6e0ea; font-size: .9rem; }
.quiet-button {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgb(255 255 255 / 24%);
  background: transparent;
  color: var(--white);
  padding: 7px 12px;
  text-decoration: none;
}
.quiet-button:hover { background: rgb(255 255 255 / 10%); }

.workspace { width: min(1800px, 100%); margin: 0 auto; padding: 24px 28px 40px; }
.query-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--emerald);
  box-shadow: var(--shadow);
}
.query-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px 16px;
  border-bottom: 1px solid #e7edf3;
}
.query-heading h1, .result-heading h2, .section-heading h3 { margin: 0; color: var(--ink); }
.query-heading h1 { font-size: 1.35rem; line-height: 1.25; }
.query-heading > p { max-width: 520px; margin: 0; color: var(--muted); font-size: .9rem; text-align: right; }
.eyebrow { margin: 0 0 3px; color: var(--emerald); font-size: .75rem; font-weight: 700; letter-spacing: .12em; }

.query-bar {
  display: grid;
  grid-template-columns: minmax(220px, .8fr) minmax(340px, 1.4fr) auto;
  gap: 14px;
  align-items: end;
  padding: 18px 24px 10px;
}
.control-group { display: grid; gap: 6px; }
.control-group label { color: #3b4a5e; font-size: .86rem; font-weight: 600; }
input, select {
  width: 100%;
  min-height: 44px;
  border: 1px solid #b9c6d4;
  border-radius: 5px;
  padding: 9px 12px;
  background: var(--white);
  color: var(--ink);
}
input:hover, select:hover { border-color: #8799ad; }
input:focus, select:focus { border-color: var(--emerald); }
select:disabled { background: #eef2f6; color: #8793a2; }
.primary-button, .export-button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 9px 20px;
  background: var(--emerald);
  color: var(--white);
  font-weight: 700;
  white-space: nowrap;
}
.primary-button:hover, .export-button:hover { background: var(--emerald-dark); }
.primary-button { color: var(--navy); }
.query-status { min-height: 32px; padding: 4px 24px 14px; color: var(--muted); font-size: .83rem; }

.state {
  margin-top: 18px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--muted);
  box-shadow: 0 8px 22px rgb(16 36 62 / 5%);
}
.state strong, .state span { display: block; }
.state strong { color: var(--ink); }
.empty-state { min-height: 180px; display: flex; align-items: center; justify-content: center; gap: 18px; }
.state-symbol {
  display: grid !important;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 1px solid #b9d8d1;
  color: var(--emerald);
  background: #eff9f6;
  font-size: 1.35rem;
  font-weight: 700;
}
.error { display: flex; gap: 10px; padding: 18px 20px; border-left: 5px solid var(--danger); color: var(--danger); background: #fff8f8; }
.error strong { color: var(--danger); }

.result-shell { margin-top: 18px; }
.result-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-bottom: 0;
}
.result-heading h2 { font-size: 1.25rem; }
.customer-id { display: block; margin-top: 4px; color: var(--muted); font-size: .82rem; font-variant-numeric: tabular-nums; }
.export-button { background: var(--navy-2); }
.export-button:hover { background: var(--navy); }

.tabs {
  display: flex;
  gap: 0;
  margin: 0;
  overflow-x: auto;
  scrollbar-width: thin;
  border: 1px solid var(--line);
  border-bottom: 3px solid var(--navy-2);
  background: #eaf0f5;
}
.tab {
  min-height: 48px;
  border: 0;
  border-right: 1px solid #d2dce6;
  border-radius: 0;
  padding: 9px 18px;
  background: transparent;
  color: #405067;
  font-weight: 600;
  white-space: nowrap;
}
.tab span { margin-left: 7px; color: #7a8899; font-size: .76rem; font-variant-numeric: tabular-nums; }
.tab:hover { background: #dfe8ef; color: var(--navy); }
.tab.active { background: var(--navy-2); color: var(--white); }
.tab.active span { color: #c8d7e5; }

.tab-panel { display: none; padding: 22px 24px 26px; background: var(--white); border: 1px solid var(--line); border-top: 0; }
.tab-panel.active { display: block; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; margin-bottom: 14px; }
.section-heading h3 { font-size: 1.02rem; }
.section-heading span { color: var(--muted); font-size: .8rem; }

.summary-layout { display: grid; grid-template-columns: minmax(560px, 1.6fr) minmax(280px, .7fr); gap: 22px; align-items: stretch; }
.summary-table { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--line); }
.summary-table th, .summary-table td { padding: 11px 14px; border-bottom: 1px solid #e3e9ef; }
.summary-table tr:last-child td { border-bottom: 0; }
.summary-table th { background: #edf2f6; color: #304158; font-size: .86rem; text-align: left; }
.summary-table th:nth-child(2), .summary-table td:nth-child(2) { text-align: right; }
.summary-table td:nth-child(2) { font-family: Consolas, "SFMono-Regular", monospace; font-variant-numeric: tabular-nums; }
.summary-table th:last-child, .summary-table td:last-child { width: 120px; text-align: center; color: var(--muted); }
.summary-table .subtotal td { background: #f3f8f7; font-weight: 700; color: #163f3a; }
.total-refund { display: flex; min-height: 240px; flex-direction: column; justify-content: center; padding: 30px; background: var(--navy); color: var(--white); border-top: 5px solid var(--emerald); }
.total-refund span { color: #bed0df; font-size: .9rem; }
.total-refund strong { margin-top: 8px; font-family: Consolas, "SFMono-Regular", monospace; font-size: clamp(1.8rem, 3vw, 2.8rem); line-height: 1.2; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.total-refund p { margin: 22px 0 0; color: #c6d4e0; font-size: .83rem; }

.detail-heading { align-items: center; }
.detail-heading h3 + span { display: block; margin-top: 2px; }
.scroll-tip { padding-left: 18px; position: relative; }
.scroll-tip::before { content: "↔"; position: absolute; left: 0; color: var(--emerald); font-weight: 700; }
.table-scroll {
  max-height: calc(100vh - 285px);
  overflow: auto;
  border: 1px solid #cfd9e3;
  scrollbar-color: #9aabba #edf2f6;
}
.detail-table { width: max-content; min-width: 100%; border-collapse: separate; border-spacing: 0; white-space: nowrap; font-size: .875rem; }
.detail-table th, .detail-table td { min-width: 126px; padding: 8px 10px; border-right: 1px solid #dfe6ed; border-bottom: 1px solid #dfe6ed; text-align: left; }
.detail-table th { position: sticky; top: 0; z-index: 3; background: var(--navy-2); color: var(--white); font-weight: 600; text-align: center; }
.detail-table th:first-child, .detail-table td:first-child { position: sticky; left: 0; min-width: 170px; }
.detail-table th:first-child { z-index: 4; background: var(--navy); }
.detail-table td:first-child { z-index: 1; background: #f7f9fb; font-family: Consolas, "SFMono-Regular", monospace; }
.detail-table tbody tr:nth-child(even) td { background: #f8fafc; }
.detail-table tbody tr:nth-child(even) td:first-child { background: #eef3f7; }
.detail-table tbody tr:hover td { background: #eef8f5; }
.detail-table tbody tr:hover td:first-child { background: #e4f3ef; }
.compact-state { padding: 36px 20px; text-align: center; box-shadow: none; }
.detail-load-state {
  margin: 10px 0;
  padding: 14px 16px;
  border: 1px solid #d8e1e9;
  border-radius: 6px;
  background: #f7f9fb;
  color: var(--muted);
  font-size: .86rem;
}
.detail-load-state.loading { color: var(--navy-2); background: #eef5f8; }
.detail-load-state.error-state { color: var(--danger); border-color: #efcaca; background: #fff8f8; }
.pagination { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 14px; }
.pagination[hidden], .table-scroll[hidden] { display: none; }
.page-button {
  min-height: 36px;
  padding: 7px 14px;
  border: 1px solid #b8c7d5;
  border-radius: 5px;
  background: var(--white);
  color: var(--navy-2);
  font-weight: 600;
}
.page-button:hover:not(:disabled) { border-color: var(--emerald); color: var(--emerald-dark); background: #f1faf7; }
.page-button:disabled { cursor: not-allowed; opacity: .48; }
.page-summary { min-width: 170px; color: var(--muted); text-align: center; font-size: .84rem; font-variant-numeric: tabular-nums; }

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background-image: linear-gradient(90deg, rgb(16 36 62 / 8%), rgb(16 36 62 / 2%)), url("brand-background.49560e556bf7.jpg");
  background-position: center;
  background-size: cover;
}
.login-panel {
  width: min(440px, 100%);
  padding: 36px;
  background: rgb(255 255 255 / 94%);
  border-top: 5px solid var(--emerald);
  box-shadow: 0 24px 70px rgb(16 36 62 / 24%);
  backdrop-filter: blur(8px);
}
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.login-brand .brand-mark { width: 86px; height: 56px; border-color: #d8e1eb; }
.login-panel h1 { margin: 0; font-size: 1.5rem; }
.login-panel .login-intro { margin: 5px 0 0; color: var(--muted); font-size: .9rem; }
.login-panel label { display: block; margin: 16px 0 6px; color: #34445a; font-size: .88rem; font-weight: 600; }
.login-panel input, .login-panel .primary-button { width: 100%; }
.login-panel .primary-button { margin-top: 22px; }
.login-panel .error { display: block; margin: 0 0 16px; padding: 11px 12px; border: 1px solid #efcaca; border-left: 4px solid var(--danger); box-shadow: none; font-size: .86rem; }
.login-footnote { margin: 22px 0 0; color: var(--muted); font-size: .78rem; text-align: center; }

@media (max-width: 900px) {
  .workspace { padding: 18px 16px 30px; }
  .query-heading { align-items: flex-start; flex-direction: column; }
  .query-heading > p { text-align: left; }
  .query-bar { grid-template-columns: 1fr; }
  .summary-layout { grid-template-columns: 1fr; }
  .total-refund { min-height: 190px; }
}

@media (max-width: 600px) {
  .topbar { padding: 0 16px; }
  .brand-lockup div > span, .account-name { display: none; }
  .query-heading, .query-bar, .tab-panel, .result-heading { padding-left: 16px; padding-right: 16px; }
  .result-heading { align-items: stretch; flex-direction: column; }
  .export-button { width: 100%; }
  .scroll-tip { display: none; }
  .login-shell { align-items: center; justify-content: center; padding: 24px; background-position: 62% center; }
  .login-panel { padding: 28px 22px; background: rgb(255 255 255 / 96%); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}