:root {
  color-scheme: dark;
  --ink: #eef3f1;
  --muted: #98aaa8;
  --line: #2a393e;
  --panel: #172329;
  --panel-deep: #121b20;
  --bg: #0d1418;
  --amber: #f2b84b;
  --amber-dark: #7b5a21;
  --mint: #55d2b2;
  --red: #f08070;
  --shadow: 0 18px 45px rgba(0, 0, 0, .2);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--bg); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.login-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(220px, .8fr) minmax(280px, 420px); gap: 12vw; align-items: center; max-width: 1080px; margin: auto; padding: 56px 6vw; position: relative; }
.login-shell::before { content: ""; position: absolute; inset: 0 50% 0 -20vw; border-right: 1px solid var(--line); background: repeating-linear-gradient(0deg, transparent 0 39px, rgba(85, 210, 178, .07) 40px), repeating-linear-gradient(90deg, transparent 0 39px, rgba(85, 210, 178, .07) 40px); pointer-events: none; }
.login-mark { position: absolute; top: 32px; left: 6vw; color: var(--amber); font-weight: 800; letter-spacing: .1em; }
.login-copy, .form-panel { position: relative; }
.eyebrow { margin: 0 0 14px; color: var(--mint); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
h1, h2, h3, h4, p { margin-top: 0; }
h1 { margin-bottom: 22px; font-size: clamp(42px, 6vw, 72px); line-height: .98; letter-spacing: .01em; }
h1 span { color: var(--amber); }
.login-copy > p:last-child { max-width: 250px; color: var(--muted); line-height: 1.8; }
.form-panel { display: grid; gap: 17px; padding: 30px; background: var(--panel); border: 1px solid var(--line); border-top: 3px solid var(--amber); box-shadow: var(--shadow); }
label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; }
input, select, textarea { width: 100%; color: var(--ink); background: var(--panel-deep); border: 1px solid var(--line); border-radius: 4px; padding: 11px 12px; outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--mint); box-shadow: 0 0 0 2px rgba(85, 210, 178, .14); }
textarea { resize: vertical; line-height: 1.55; }
.primary { border: 0; border-radius: 4px; background: var(--amber); color: #1c1d19; padding: 12px 16px; font-weight: 800; transition: transform .15s ease, filter .15s ease; }
.primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.form-error { min-height: 1.2em; margin: 0; color: var(--red); font-size: 13px; }
.setup-panel { align-self: stretch; }
.setup-note { margin: -7px 0 2px; color: var(--muted); font-size: 13px; line-height: 1.6; }

.topbar { min-height: 64px; display: flex; justify-content: space-between; align-items: center; padding: 0 4vw; border-bottom: 1px solid var(--line); background: rgba(13, 20, 24, .96); position: sticky; top: 0; z-index: 10; }
.brand, .session { display: flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 700; }
.brand-block { display: grid; place-items: center; width: 29px; height: 29px; color: var(--bg); background: var(--amber); font-weight: 900; }
.session { color: var(--muted); }
.text-button, .small-button { border: 1px solid var(--line); border-radius: 4px; padding: 8px 11px; color: var(--ink); background: transparent; font-size: 12px; }
.text-button:hover, .small-button:hover { border-color: var(--mint); color: var(--mint); }
.page-wrap { width: min(1180px, 92vw); margin: 0 auto; padding: 44px 0 80px; }
.intro-row { display: flex; justify-content: space-between; align-items: end; margin-bottom: 26px; }
h2 { margin-bottom: 0; font-size: clamp(28px, 4vw, 42px); letter-spacing: .02em; }
.date-stamp { margin: 0; color: var(--muted); font-size: 13px; }
.panel { margin-bottom: 18px; padding: 23px; background: var(--panel); border: 1px solid var(--line); box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.panel-heading > div { display: flex; align-items: center; gap: 11px; }
.panel-heading h3 { margin: 0; font-size: 18px; }
.step { color: var(--amber); font-size: 11px; font-weight: 900; letter-spacing: .08em; }
.status-label { color: var(--muted); font-size: 11px; }
.field-grid { display: grid; gap: 15px; }
.field-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.field-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.field-inline { display: flex; align-items: end; gap: 15px; margin-top: 15px; }
.field-inline label { width: 170px; }
.hint { color: var(--muted); font-size: 12px; }
.group-head { display: flex; align-items: center; justify-content: space-between; margin: 25px 0 10px; border-top: 1px solid var(--line); padding-top: 19px; }
.group-head h4 { margin: 0; font-size: 13px; color: var(--ink); }
.groups-container { display: grid; gap: 10px; }
.group-row { display: grid; grid-template-columns: 110px 1.2fr 130px 1.4fr; gap: 10px; align-items: end; padding: 13px; border: 1px solid var(--line); background: var(--panel-deep); }
.group-row .remove-group { align-self: end; border: 0; padding: 10px 0; color: var(--red); background: transparent; font-size: 12px; }
.operation-picker { grid-column: 1 / -1; display: flex; gap: 8px; flex-wrap: wrap; padding-top: 5px; }
.operation-picker label { display: inline-flex; grid-template-columns: auto auto; align-items: center; gap: 6px; padding: 6px 9px; border: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.operation-picker input { width: auto; accent-color: var(--mint); }
.action-row { display: flex; align-items: center; gap: 15px; margin-top: 20px; }
.inline-status { color: var(--mint); font-size: 13px; }
.dashboard-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; align-items: start; }
.overview-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: -2px 0 20px; }
.overview-metrics > div { display: flex; align-items: baseline; gap: 8px; padding: 14px; border: 1px solid var(--line); background: var(--panel-deep); }
.overview-metrics span { color: var(--muted); font-size: 12px; }
.overview-metrics strong { color: var(--amber); font-size: 27px; }
.overview-metrics small { color: var(--muted); font-size: 11px; }
.analysis-filter { display: flex; align-items: end; gap: 12px; margin: -8px 0 17px; }
.analysis-filter label { width: 150px; }
.analysis-caption { margin: 0 0 2px; color: var(--muted); font-size: 12px; }
.analytics-metrics { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 22px; }
.analytics-metrics > div { display: flex; align-items: baseline; flex-wrap: wrap; gap: 7px; padding: 13px; border: 1px solid var(--line); background: var(--panel-deep); }
.analytics-metrics span { width: 100%; color: var(--muted); font-size: 12px; }
.analytics-metrics strong { color: var(--amber); font-size: 24px; }
.analytics-metrics small { color: var(--muted); font-size: 11px; }
.analytics-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.analytics-columns h4 { margin: 0 0 10px; color: var(--ink); font-size: 13px; }
.secondary-analysis { margin-top: 22px; }
.analysis-reasons { margin-top: 22px; }
.analysis-reasons h4 { margin: 0 0 10px; font-size: 13px; }
.reason-list { display: flex; flex-wrap: wrap; gap: 8px; }
.reason-list span { padding: 7px 10px; border-left: 3px solid var(--amber); background: rgba(242, 184, 75, .08); color: #eacb90; font-size: 12px; }
.hero-number { display: flex; align-items: baseline; gap: 10px; margin: 8px 0 2px; color: var(--amber); }
.hero-number span { font-size: clamp(50px, 8vw, 90px); line-height: .95; font-weight: 800; letter-spacing: -.04em; }
.hero-number small { color: var(--muted); font-size: 13px; }
.bottleneck { min-height: 22px; color: var(--muted); font-size: 13px; }
.notice-list { display: grid; gap: 7px; margin: 18px 0; }
.notice { padding: 9px 11px; border-left: 3px solid var(--amber); color: #eacb90; background: rgba(242, 184, 75, .08); font-size: 12px; line-height: 1.5; }
.notice.bad { border-left-color: var(--red); color: #f0ada2; background: rgba(240, 128, 112, .08); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-weight: 500; }
td { color: var(--ink); }
.empty { padding: 24px 8px; color: var(--muted); text-align: center; }
.report-form { display: grid; gap: 13px; }
.quality-grid { display: grid; grid-template-columns: minmax(280px, 1fr) minmax(220px, .8fr); gap: 24px; }
.quality-form { display: grid; gap: 13px; }
.quality-summary { margin: 18px 0 10px; color: var(--mint); font-size: 13px; }
.trace-results { display: grid; gap: 8px; margin-top: 14px; }
.trace-item { display: grid; gap: 4px; padding: 10px; border-left: 3px solid var(--mint); background: var(--panel-deep); color: var(--muted); font-size: 12px; }
.trace-item strong { color: var(--ink); }
.payroll-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
.payroll-form { display: grid; gap: 13px; }
.payroll-form h4 { margin: 0; color: var(--ink); font-size: 14px; }
.payroll-summary { display: flex; flex-wrap: wrap; gap: 18px; margin: 22px 0 10px; color: var(--mint); font-size: 13px; }
.payroll-summary strong { color: var(--amber); font-size: 21px; }
.payroll-summary span { display: inline-flex; align-items: baseline; gap: 6px; }
.users-grid { display: grid; grid-template-columns: minmax(220px, 320px) 1fr; gap: 24px; align-items: start; }
.user-form { display: grid; gap: 13px; }
.user-form h4 { margin: 0; color: var(--ink); font-size: 14px; }
.records-panel { margin-top: 18px; }
.toast { position: fixed; right: 22px; bottom: 22px; max-width: min(360px, calc(100vw - 44px)); padding: 12px 15px; border: 1px solid var(--mint); color: var(--ink); background: #1b3432; box-shadow: var(--shadow); opacity: 0; transform: translateY(10px); pointer-events: none; transition: .2s ease; font-size: 13px; }
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 800px) {
  .login-shell { grid-template-columns: 1fr; gap: 34px; padding-top: 90px; }
  .login-shell::before { inset: 0; border: 0; opacity: .5; }
  .login-copy { max-width: 420px; }
  .form-panel { max-width: 480px; }
  .field-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dashboard-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .topbar { padding: 0 4vw; }
  .brand span:last-child { display: none; }
  .page-wrap { width: 92vw; padding-top: 32px; }
  .intro-row { align-items: start; flex-direction: column; gap: 10px; }
  .panel { padding: 17px; }
  .field-grid.two, .field-grid.three, .field-grid.four { grid-template-columns: 1fr; }
  .field-inline { align-items: start; flex-direction: column; gap: 8px; }
  .field-inline label { width: 100%; }
  .group-row { grid-template-columns: 1fr 1fr; }
  .group-row label:nth-child(2), .group-row label:nth-child(4) { grid-column: span 2; }
  .group-row .remove-group { grid-column: 2; justify-self: end; }
  .action-row { align-items: stretch; flex-direction: column; }
  .action-row .primary { width: 100%; }
  .overview-metrics { grid-template-columns: 1fr; }
  .analytics-metrics { grid-template-columns: repeat(2, 1fr); }
  .analytics-columns { grid-template-columns: 1fr; gap: 20px; }
  .quality-grid { grid-template-columns: 1fr; }
  .payroll-grid { grid-template-columns: 1fr; }
  .users-grid { grid-template-columns: 1fr; }
  .analysis-filter { align-items: stretch; flex-direction: column; }
  .analysis-filter label { width: 100%; }
}