:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #687287;
  --line: #dfe4ec;
  --surface: #ffffff;
  --canvas: #f4f6f9;
  --blue: #185fa5;
  --blue-dark: #0c447c;
  --blue-pale: #e6f1fb;
  --green: #0f6e56;
  --green-pale: #e1f5ee;
  --amber: #854f0b;
  --amber-pale: #faeeda;
  --red: #a32d2d;
  --red-pale: #fcebeb;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 14px/1.55 Inter, "Microsoft YaHei", system-ui, sans-serif; }
button, select, input { font: inherit; }
button { cursor: pointer; }
.topbar { height: 72px; padding: 0 max(24px, calc((100% - 1080px) / 2)); background: var(--surface); border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; color: white; background: var(--blue); font-weight: 700; letter-spacing: .5px; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 15px; }
.brand small { margin-top: 1px; color: var(--muted); font-size: 12px; }
.health { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.health span { width: 8px; height: 8px; border-radius: 50%; background: #b5bdca; }
.health.ok span { background: var(--green); }
.health.bad { color: var(--red); }
.health.bad span { background: var(--red); }
main { width: min(1080px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 80px; }
.hero { max-width: 660px; }
.eyebrow { margin: 0 0 8px; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .12em; }
h1 { margin: 0; font-size: clamp(30px, 5vw, 44px); letter-spacing: -.035em; line-height: 1.14; }
.hero > p:last-child { margin: 14px 0 0; color: var(--muted); font-size: 16px; }
.stepper { margin: 36px 0 24px; padding: 18px 22px; border: 1px solid var(--line); background: var(--surface); border-radius: 14px; display: flex; align-items: center; }
.step { flex: 0 1 210px; display: grid; grid-template-columns: 34px 1fr; column-gap: 10px; }
.step span { grid-row: 1 / span 2; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--muted); border-radius: 50%; }
.step b { align-self: end; font-size: 13px; }
.step small { color: var(--muted); }
.step.active span { background: var(--blue); border-color: var(--blue); color: white; }
.step.complete span { background: var(--green); border-color: var(--green); color: white; }
.stepper > i { flex: 1; height: 1px; margin: 0 18px; background: var(--line); }
.card { margin-top: 20px; padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
h2, h3, p { margin-top: 0; }
h2 { margin-bottom: 4px; font-size: 19px; }
h3 { margin-bottom: 0; font-size: 15px; }
.card-head p, .section-title span { margin-bottom: 0; color: var(--muted); font-size: 13px; }
.text-link, .text-button { color: var(--blue); text-decoration: none; background: none; border: 0; padding: 4px; }
.text-link.disabled { color: #a6adba; pointer-events: none; }
form { margin-top: 24px; }
.field { display: block; margin-bottom: 20px; }
.field > span { display: block; margin-bottom: 7px; font-weight: 600; }
.field select { width: 100%; padding: 12px 14px; border: 1px solid #cbd2de; border-radius: 9px; background: white; color: var(--ink); }
.field small { display: block; margin-top: 6px; color: var(--muted); }
.dropzone { min-height: 210px; padding: 32px; border: 1.5px dashed #b8c2d0; border-radius: 12px; background: #fafbfd; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; transition: .16s ease; }
.dropzone:hover, .dropzone.drag { border-color: var(--blue); background: var(--blue-pale); }
.upload-icon { width: 54px; height: 54px; margin-bottom: 13px; display: grid; place-items: center; border-radius: 12px; background: var(--blue-pale); color: var(--blue-dark); font-size: 13px; font-weight: 700; }
.dropzone strong { font-size: 16px; }
.dropzone > span { margin: 5px 0 16px; color: var(--muted); }
.primary, .secondary, .danger { border-radius: 9px; padding: 10px 18px; border: 1px solid transparent; }
.primary { background: var(--blue); color: white; }
.primary:hover { background: var(--blue-dark); }
.primary:disabled { cursor: not-allowed; background: #aeb9c8; }
.secondary { background: white; border-color: #cbd2de; color: var(--ink); }
.danger { background: white; border-color: #efb4b4; color: var(--red); }
.guardrails { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.guardrails span { padding: 5px 9px; background: var(--canvas); border-radius: 6px; color: var(--muted); font-size: 12px; }
.actions { margin-top: 24px; display: flex; justify-content: flex-end; align-items: center; }
.actions.split { justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding-top: 22px; }
.actions p { margin: 0; color: var(--muted); }
.summary { margin: 22px 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.metric { padding: 15px; border: 1px solid var(--line); border-radius: 10px; }
.metric small, .metric strong { display: block; }
.metric small { color: var(--muted); }
.metric strong { margin-top: 5px; font-size: 24px; line-height: 1; }
.metric.green { background: var(--green-pale); border-color: #9fe1cb; }
.metric.amber { background: var(--amber-pale); border-color: #fac775; }
.metric.red { background: var(--red-pale); border-color: #f7c1c1; }
.section-title { margin: 26px 0 10px; display: flex; align-items: center; justify-content: space-between; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; white-space: nowrap; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; }
th { background: #f7f8fa; color: #4e586b; }
tr:last-child td { border-bottom: 0; }
.done { padding: 48px; text-align: center; }
.done-mark { width: 54px; height: 54px; margin: 0 auto 16px; display: grid; place-items: center; border-radius: 50%; background: var(--green-pale); color: var(--green); font-size: 24px; }
.history-card { margin-top: 30px; }
.history-empty { padding: 28px; color: var(--muted); text-align: center; }
.history-list { margin-top: 18px; display: grid; gap: 10px; }
.history-item { padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; display: grid; grid-template-columns: 1fr auto; gap: 5px 16px; }
.history-item strong { font-size: 13px; }
.history-item small { color: var(--muted); }
.badge { align-self: center; grid-row: 1 / span 2; grid-column: 2; padding: 4px 8px; border-radius: 999px; font-size: 12px; }
.badge.imported { color: var(--green); background: var(--green-pale); }
.badge.ready { color: var(--blue-dark); background: var(--blue-pale); }
.badge.invalid, .badge.failed { color: var(--red); background: var(--red-pale); }
.toast { position: fixed; right: 24px; bottom: 24px; max-width: min(420px, calc(100% - 48px)); padding: 12px 16px; color: white; background: #2c3445; border-radius: 9px; }
.hidden { display: none !important; }
.top-actions { display: flex; align-items: center; gap: 14px; }
.user-button { display: flex; flex-direction: column; align-items: flex-end; border: 0; background: transparent; color: var(--ink); padding: 4px; }
.user-button small { color: var(--muted); }
.subnav { height: 48px; padding: 0 max(24px, calc((100% - 1080px) / 2)); background: var(--surface); border-bottom: 1px solid var(--line); display: flex; align-items: flex-end; gap: 24px; }
.nav-tab { height: 48px; padding: 0 4px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); }
.nav-tab.active { border-bottom-color: var(--blue); color: var(--blue-dark); }
.auth-shell { min-height: 100vh; padding: 32px 16px; display: grid; place-items: center; background: var(--canvas); }
.auth-card { width: min(440px, 100%); padding: 36px; border: 1px solid var(--line); border-radius: 18px; background: white; }
.auth-brand { margin-bottom: 34px; }
.auth-card h1 { font-size: 30px; }
.auth-card > p { margin: 10px 0 24px; color: var(--muted); }
.auth-form { margin-top: 0; }
.field input { width: 100%; padding: 12px 14px; border: 1px solid #cbd2de; border-radius: 9px; color: var(--ink); background: white; }
.full { width: 100%; }
.security-note { display: block; margin-top: 20px; color: var(--muted); text-align: center; }
.user-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 18px; }
.user-form .actions { grid-column: 1 / -1; margin-top: 4px; }
.user-list { margin-top: 20px; display: grid; gap: 10px; }
.user-row { padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 16px; }
.user-row strong, .user-row small { display: block; }
.user-row small { color: var(--muted); }
.user-actions { display: flex; gap: 8px; }
.small { padding: 6px 10px; font-size: 12px; }
.config-form { margin-top: 22px; }
.config-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 18px; }
.schema-status { margin: 6px 0 14px; padding: 12px 14px; border-radius: 9px; background: var(--blue-pale); color: var(--blue-dark); font-size: 13px; }
.config-columns input[type="checkbox"] { width: 17px; height: 17px; accent-color: var(--blue); }
.config-columns td small { display: block; color: var(--muted); }
.rule-input { width: 86px; padding: 7px 8px; border: 1px solid #cbd2de; border-radius: 7px; }
.enum-input { min-width: 150px; padding: 7px 8px; border: 1px solid #cbd2de; border-radius: 7px; }
.toggle-line { margin-top: 18px; display: flex; align-items: center; gap: 9px; color: var(--ink); }
.toggle-line input { width: 18px; height: 18px; accent-color: var(--blue); }
.config-list { margin-top: 20px; display: grid; gap: 10px; }
.config-row { padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 16px; }
.config-row strong, .config-row small { display: block; }
.config-row small { color: var(--muted); }
@media (max-width: 720px) {
  .topbar { padding: 0 16px; }
  .health { display: none; }
  .top-actions { gap: 6px; }
  .subnav { padding: 0 16px; }
  main { padding-top: 32px; }
  .stepper { padding: 14px; }
  .step { display: flex; align-items: center; flex: 0; }
  .step b, .step small { display: none; }
  .stepper > i { margin: 0 8px; }
  .card { padding: 20px; }
  .summary { grid-template-columns: repeat(2, 1fr); }
  .card-head { align-items: flex-start; }
  .actions.split { align-items: stretch; flex-direction: column; }
  .actions.split button { width: 100%; }
  .auth-card { padding: 26px 20px; }
  .user-form, .config-grid { grid-template-columns: 1fr; }
  .user-row, .config-row { grid-template-columns: 1fr auto; }
  .user-actions { grid-column: 1 / -1; flex-wrap: wrap; }
}