:root {
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --border-color: #d8dee8;
  --border-strong: #aeb8c7;
  --radius-sm: 0.35rem;
  --radius-md: 0.65rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.25rem;
  --font-xl: 1.75rem;
  --page-width: 92rem;
  --sidebar-width: 15rem;
  --banner-height: 4.5rem;
  --text: #182230;
  --text-muted: #526071;
  --background: #f3f5f8;
  --surface: #ffffff;
  --surface-subtle: #eef2f6;
  --focus: #175cd3;
}

* { box-sizing: border-box; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
html { color: var(--text); background: var(--background); font-family: Arial, "Microsoft YaHei", sans-serif; line-height: 1.5; }
body { margin: 0; min-width: 20rem; }
a { color: #175cd3; }
code, pre { overflow-wrap: anywhere; word-break: break-word; }
pre { max-width: 100%; overflow-x: auto; white-space: pre-wrap; }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.skip-link { position: fixed; left: var(--space-4); top: -4rem; z-index: 100; background: #fff; color: #000; padding: var(--space-3) var(--space-4); border: 2px solid #000; }
.skip-link:focus { top: var(--space-3); }

.environment-banner { min-height: var(--banner-height); display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); padding: var(--space-3) var(--space-5); color: #fff; background: #25334a; border-bottom: 0.3rem solid #526071; }
.environment--production { background: #7a271a; border-bottom-color: #f04438; }
.environment--development { background: #1849a9; border-bottom-color: #84adff; }
.environment--test { background: #344054; border-bottom-color: #98a2b3; }
.environment-identity { display: flex; align-items: baseline; gap: var(--space-3); white-space: nowrap; }
.environment-label { font-size: var(--font-lg); font-weight: 700; }
.environment-code { letter-spacing: 0.08em; }
.environment-meta { display: flex; gap: var(--space-5); margin: 0; font-size: var(--font-sm); }
.environment-meta div { display: flex; gap: var(--space-2); }
.environment-meta dt { opacity: 0.8; }
.environment-meta dd { margin: 0; font-weight: 700; }

.product-layout { display: grid; grid-template-columns: var(--sidebar-width) minmax(0, 1fr); min-height: calc(100vh - var(--banner-height)); }
.sidebar { background: #101828; color: #fff; padding: var(--space-5) var(--space-4); }
.product-name { display: grid; gap: var(--space-1); padding: 0 var(--space-3) var(--space-5); border-bottom: 1px solid #344054; }
.product-kicker, .eyebrow { margin: 0 0 var(--space-1); color: var(--text-muted); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.product-kicker { color: #98a2b3; }
.nav-list { list-style: none; margin: var(--space-5) 0; padding: 0; display: grid; gap: var(--space-1); }
.nav-link { display: block; padding: var(--space-3); border-left: 0.25rem solid transparent; color: #e4e7ec; text-decoration: none; border-radius: var(--radius-sm); }
.nav-link:hover { background: #1d2939; color: #fff; }
.nav-link.is-active { border-left-color: #84adff; background: #344054; color: #fff; font-weight: 700; }
.sidebar-note { margin: var(--space-6) var(--space-3) 0; color: #b8c1cf; font-size: var(--font-sm); }

.product-main { min-width: 0; width: 100%; max-width: var(--page-width); padding: var(--space-5) var(--space-6); }
.page-header { margin-bottom: var(--space-5); }
.section-header { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-5); padding-bottom: var(--space-4); border-bottom: 1px solid var(--border-color); }
.section-header h1 { margin: 0; font-size: var(--font-xl); }
.section-header p { margin: var(--space-2) 0 0; color: var(--text-muted); }
.section-actions { display: flex; align-items: center; gap: var(--space-3); }
.page-content { display: grid; grid-template-columns: minmax(0, 1fr); min-width: 0; gap: var(--space-6); }
.page-content > * { min-width: 0; }
.product-footer { display: flex; justify-content: space-between; gap: var(--space-4); margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--border-color); color: var(--text-muted); font-size: var(--font-sm); }

.summary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.summary-card, .panel, .empty-state, .error-panel { background: var(--surface); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: var(--space-5); }
.summary-card h2, .panel h2, .empty-state h2 { margin: 0 0 var(--space-2); font-size: var(--font-lg); }
.technical-value, .freeze-state { margin: var(--space-1) 0 var(--space-4); font-weight: 800; letter-spacing: 0.06em; }
.freeze-state { color: #067647; }
.compact-list { margin: var(--space-3) 0 0; display: grid; gap: var(--space-2); }
.compact-list div { display: grid; grid-template-columns: 7rem minmax(0, 1fr); gap: var(--space-3); }
.compact-list dt { color: var(--text-muted); }
.compact-list dd { margin: 0; overflow-wrap: anywhere; }
.hash-value { font-family: Consolas, monospace; font-size: 0.75rem; }
.content-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-5); margin-bottom: var(--space-4); }
.content-heading h2 { margin: 0; }
.muted-text { color: var(--text-muted); }
.module-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.module-card { display: grid; gap: var(--space-2); min-height: 9rem; padding: var(--space-5); border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--surface); color: var(--text); text-decoration: none; }
.module-card:hover { border-color: #528bff; }
.module-card strong { font-size: var(--font-lg); }
.module-card span:last-child { color: var(--text-muted); }
.module-stage { color: #175cd3; font-size: var(--font-sm); font-weight: 700; }

.status-badge { display: inline-flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; padding: var(--space-1) var(--space-3); border: 1px solid currentColor; border-radius: 999px; font-size: 0.75rem; font-weight: 800; }
.status--pass, .status--completed { color: #067647; background: #ecfdf3; }
.status--waiting { color: #344054; background: #f2f4f7; }
.status--ready { color: #175cd3; background: #eff4ff; }
.status--warning, .status--hold { color: #93370d; background: #fffaeb; }
.status--blocked { color: #b42318; background: #fef3f2; }
.status--unknown { color: #475467; background: #f2f4f7; }

.empty-state { text-align: center; background: var(--surface-subtle); border-style: dashed; }
.button { display: inline-block; padding: var(--space-2) var(--space-4); border: 1px solid transparent; border-radius: var(--radius-sm); text-decoration: none; font-weight: 700; }
.button--primary { color: #fff; background: #175cd3; }
.button--secondary { color: var(--text); background: #fff; border-color: var(--border-strong); }
.button--disabled { color: var(--text-muted); background: var(--surface-subtle); border-color: var(--border-color); cursor: not-allowed; }
.action-row { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }
button, input, select, textarea { font: inherit; }
button { padding: var(--space-2) var(--space-4); border: 1px solid #175cd3; border-radius: var(--radius-sm); color: #fff; background: #175cd3; font-weight: 700; cursor: pointer; }
button:hover { background: #1849a9; }
.stack-form { display: grid; gap: var(--space-3); max-width: 42rem; margin-top: var(--space-5); }
.stack-form input[type="file"] { padding: var(--space-4); border: 1px dashed var(--border-strong); border-radius: var(--radius-sm); background: var(--surface-subtle); }
.stack-form label { display: grid; gap: var(--space-1); font-weight: 700; }
.stack-form input, .stack-form select, .stack-form textarea, .decision-form textarea { width: 100%; padding: var(--space-2); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: #fff; color: var(--text); }
.decision-form { display: grid; grid-template-columns: minmax(10rem, 1fr) auto auto; gap: var(--space-2); min-width: 28rem; }
.filter-bar { display: flex; flex-wrap: wrap; align-items: end; gap: var(--space-3); padding: var(--space-4); border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--surface); }
.filter-bar label { display: grid; gap: var(--space-1); color: var(--text-muted); font-size: var(--font-sm); font-weight: 700; }
.filter-bar input, .filter-bar select { min-height: 2.5rem; padding: var(--space-2); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: #fff; color: var(--text); }
.panel--accent { border-top: 0.3rem solid #175cd3; }
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3) var(--space-5); margin: var(--space-4) 0; }
.detail-grid div { min-width: 0; padding-bottom: var(--space-2); border-bottom: 1px solid var(--border-color); }
.detail-grid dt { color: var(--text-muted); font-size: var(--font-sm); font-weight: 700; }
.detail-grid dd { margin: var(--space-1) 0 0; overflow-wrap: anywhere; }
.detail-grid .detail-span { grid-column: 1 / -1; }
.notice, .confirm-box, .safety-note { padding: var(--space-4); border: 1px solid var(--border-color); border-left-width: 0.35rem; border-radius: var(--radius-sm); background: var(--surface); }
.notice p, .confirm-box p { margin: var(--space-2) 0 0; }
.notice--warning { border-left-color: #f79009; background: #fffaeb; }
.notice--danger { border-left-color: #d92d20; background: #fef3f2; }
.notice--success { border-left-color: #079455; background: #ecfdf3; }
.confirm-box { border-left-color: #175cd3; background: #eff4ff; }
.confirm-box h2, .confirm-box h3 { margin: 0; }
.confirm-box form { margin-top: var(--space-4); }
.safety-note { margin: var(--space-4) 0 0; border-left-color: #667085; background: var(--surface-subtle); color: var(--text-muted); }
.action-bar { display: flex; justify-content: flex-end; }
.action-bar .button { color: #fff; background: #175cd3; }
.workflow-steps { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); margin: var(--space-4) 0 0; padding: 0; }
.workflow-steps li { display: grid; grid-template-columns: auto 1fr; gap: var(--space-1) var(--space-3); padding: var(--space-3); border: 1px solid var(--border-color); border-radius: var(--radius-sm); background: var(--surface-subtle); }
.workflow-steps li > span { grid-row: 1 / 3; display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: #667085; color: #fff; font-weight: 800; }
.workflow-steps small { color: var(--text-muted); }
.workflow-steps .step--completed { border-color: #75e0a7; background: #ecfdf3; }
.workflow-steps .step--completed > span { background: #067647; }
.metric-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-3); }
.metric-grid article { display: grid; gap: var(--space-1); padding: var(--space-4); border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--surface); }
.metric-grid strong { font-size: var(--font-xl); font-variant-numeric: tabular-nums; }
.metric-grid span { color: var(--text-muted); font-size: var(--font-sm); }
.compact-summary { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.workflow-guidance { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); padding: var(--space-5); border: 1px solid #84adff; border-left: 0.35rem solid #175cd3; border-radius: var(--radius-md); background: #eff4ff; }
.workflow-guidance h2 { margin: 0 0 var(--space-2); font-size: var(--font-lg); }
.workflow-guidance p { margin: var(--space-1) 0; }
.workflow-guidance .eyebrow { margin-bottom: var(--space-2); }
.workflow-guidance--complete { border-color: #75e0a7; border-left-color: #079455; background: #ecfdf3; }
.workflow-guidance--compact { align-items: flex-start; }
.review-queue-actions { margin-top: 0; }
.resolution-buckets, .comparison-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
.comparison-card { min-width: 0; padding: var(--space-4); border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--surface-subtle); }
.comparison-card h3 { margin-top: 0; }
.evidence-label { display: inline-block; margin: var(--space-1) 0; padding: 0.1rem var(--space-2); border-radius: 999px; background: #fffaeb; color: #93370d; font-size: var(--font-sm); font-weight: 700; }
.safe-new-manifest { display: grid; gap: var(--space-5); }
.safe-new-manifest input[type="checkbox"] { width: 1.15rem; height: 1.15rem; }
.exception-metrics article:nth-child(2) { border-color: #75e0a7; background: #ecfdf3; }
.exception-metrics article:nth-child(3), .exception-metrics article:nth-child(4) { border-color: #fdb022; background: #fffaeb; }
.panel--exception { border-top: 0.35rem solid #f79009; }
.exception-list { display: grid; gap: var(--space-4); }
.exception-card { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); padding: var(--space-4); border: 1px solid #fdb022; border-radius: var(--radius-md); background: #fffaeb; }
.exception-card h3 { margin: var(--space-2) 0; }
.exception-card p { margin: var(--space-1) 0; }
.exception-card ul { margin-bottom: 0; }
.empty-state--guidance { max-width: 56rem; margin-inline: auto; }
.empty-state--guidance p { max-width: 46rem; margin: var(--space-2) auto; }
.empty-state--guidance > .button { margin-top: var(--space-4); }
.empty-state-actions { justify-content: center; }

.table-scroll { max-width: 100%; overflow-x: auto; border: 1px solid var(--border-color); border-radius: var(--radius-md); }
table { width: 100%; border-collapse: collapse; background: var(--surface); }
caption { padding: var(--space-3); font-weight: 700; text-align: left; }
th, td { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--border-color); text-align: left; vertical-align: top; }
th { background: var(--surface-subtle); font-size: var(--font-sm); }
td.numeric, th.numeric { text-align: right; font-variant-numeric: tabular-nums; }
.pagination { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.pagination a, .pagination > span { padding: var(--space-2) var(--space-3); border: 1px solid var(--border-color); border-radius: var(--radius-sm); background: var(--surface); text-decoration: none; }
.pagination [aria-disabled="true"] { color: var(--text-muted); background: var(--surface-subtle); }
.current-page { font-weight: 800; }
.page-size { margin-left: auto; }

.error-panel { border-left: 0.35rem solid #d92d20; }
.error-panel h2 { margin-top: 0; }
.error-details { display: grid; gap: var(--space-3); }
.error-details div { display: grid; grid-template-columns: 8rem minmax(0, 1fr); gap: var(--space-3); }
.error-details dt { color: var(--text-muted); font-weight: 700; }
.error-details dd { margin: 0; }
.error-panel details { margin: var(--space-4) 0; }
.error-panel pre { overflow-x: auto; padding: var(--space-3); background: #101828; color: #f2f4f7; border-radius: var(--radius-sm); white-space: pre-wrap; }

@media (max-width: 64rem) {
  .environment-banner, .environment-meta, .section-header, .content-heading, .workflow-guidance, .exception-card { align-items: flex-start; flex-direction: column; }
  .product-layout { grid-template-columns: minmax(0, 1fr); width: 100%; }
  .sidebar { padding: var(--space-3); }
  .nav-list { display: flex; overflow-x: auto; margin: var(--space-3) 0 0; }
  .nav-link { white-space: nowrap; border-left: 0; border-bottom: 0.2rem solid transparent; }
  .nav-link.is-active { border-left: 0; border-bottom-color: #84adff; }
  .sidebar-note { display: none; }
  .summary-grid, .module-grid, .metric-grid, .workflow-steps, .detail-grid, .resolution-buckets, .comparison-grid { grid-template-columns: 1fr; }
  .detail-grid .detail-span { grid-column: auto; }
  .product-main { max-width: 100%; padding: var(--space-4); }
}

/* Frontend UI V2: desktop-first data centre shell and reusable query surfaces. */
:root { --sidebar-width: 16.5rem; --page-width: 100rem; --background: #f6f8fb; --border-color: #e4e7ec; --radius-md: .75rem; }
body { min-width: 20rem; background: var(--background); }
.product-layout { min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; padding: 1.5rem 1rem; background: #111827; }
.product-name { padding: .5rem .75rem 1.5rem; border-color: #334155; }
.product-name strong { font-size: 1.125rem; letter-spacing: -.02em; }
.nav-list { gap: .35rem; margin: 1.5rem 0; }
.nav-link { border-left: 0; border-radius: .5rem; padding: .72rem .8rem; color: #cbd5e1; }
.nav-link:hover { background: #1e293b; }
.nav-link.is-active { border-left: 0; background: #2563eb; color: #fff; }
.nav-divider { height: 1px; margin: .8rem .75rem; background: #334155; }
.sidebar-note { position: absolute; right: 1.75rem; bottom: 1.5rem; left: 1.75rem; margin: 0; color: #94a3b8; }
.product-main { max-width: none; padding: 0 2.25rem 2rem; }
.top-status-bar { display: flex; align-items: center; justify-content: flex-end; gap: 1.5rem; min-height: 4.25rem; border-bottom: 1px solid var(--border-color); color: #64748b; font-size: .8125rem; }
.top-status-bar__item { display: inline-flex; align-items: center; gap: .45rem; color: #334155; font-weight: 700; }
.status-dot { width: .5rem; height: .5rem; border-radius: 50%; background: #16a34a; }
.page-header { margin: 2rem 0 1.5rem; }
.section-header { padding: 0; border: 0; }
.section-header h1 { font-size: 1.875rem; letter-spacing: -.04em; }
.section-header .eyebrow { display: none; }
.product-footer { margin-top: 2.5rem; }

.data-query-panel, .data-table-card { border: 1px solid var(--border-color); border-radius: .75rem; background: #fff; box-shadow: 0 1px 2px rgba(15, 23, 42, .03); }
.data-query-panel { display: grid; gap: 1rem; padding: 1rem 1.25rem; }
.data-query-panel__top { display: flex; align-items: end; flex-wrap: wrap; gap: .75rem; }
.search-input { flex: 1 1 20rem; }
.search-input input, .filter-select input, .filter-select select { min-height: 2.5rem; width: 100%; padding: .5rem .75rem; border: 1px solid #d0d5dd; border-radius: .45rem; background: #fff; color: #1e293b; }
.search-input input { background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364758b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m21 21-4.35-4.35m1.35-5.65a7 7 0 1 1-14 0 7 7 0 0 1 14 0Z'/%3E%3C/svg%3E") no-repeat .75rem center / 1rem; padding-left: 2.25rem; }
.filter-select { display: grid; gap: .35rem; color: #64748b; font-size: .75rem; font-weight: 700; }
.data-query-panel__top > button { min-height: 2.5rem; }
.query-helper { margin: 0; color: #64748b; font-size: .8125rem; }
.time-range-filter { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem 1rem; padding: .75rem 0 0; border-top: 1px solid #eef2f6; }
.time-range-filter__heading { display: grid; gap: .1rem; color: #334155; font-size: .8125rem; font-weight: 700; }
.time-range-filter__heading small { color: #94a3b8; font-weight: 400; }
.time-range-filter__choices { display: flex; flex-wrap: wrap; gap: .35rem; }
.range-choice { padding: .35rem .65rem; border-color: #d0d5dd; border-radius: 999px; background: #fff; color: #64748b; font-size: .75rem; font-weight: 600; }
.range-choice:disabled { cursor: not-allowed; opacity: .7; }
.time-range-filter__custom { display: flex; align-items: center; gap: .5rem; }
.time-range-filter__custom input { min-height: 2.25rem; border: 1px solid #d0d5dd; border-radius: .45rem; padding: .35rem .5rem; }
.stat-card-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin: 1.25rem 0; }
.stat-card { display: grid; gap: .45rem; min-height: 7.25rem; padding: 1.2rem; border: 1px solid var(--border-color); border-radius: .75rem; background: #fff; box-shadow: 0 1px 2px rgba(15, 23, 42, .03); }
.stat-card span { color: #64748b; font-size: .8125rem; }
.stat-card strong { color: #0f172a; font-size: 1.75rem; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.data-table-card { overflow: hidden; }
.data-table-card__header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.25rem 1.25rem 1rem; }
.data-table-card__header h2 { margin: 0; font-size: 1rem; }
.data-table-card__header p, .data-table-card__header > span { margin: .2rem 0 0; color: #64748b; font-size: .8125rem; }
.v2-table th { padding: .75rem 1rem; background: #f8fafc; color: #64748b; font-size: .75rem; font-weight: 700; }
.v2-table td { padding: .9rem 1rem; vertical-align: middle; color: #334155; font-size: .875rem; }
.v2-table tbody tr:last-child td { border-bottom: 0; }
.v2-table tbody tr:hover { background: #f8fbff; }
.table-action { width: 4.5rem; text-align: right !important; white-space: nowrap; }
.table-view-link { font-weight: 700; text-decoration: none; }
.data-table-card .pagination { padding: 1rem 1.25rem; border-top: 1px solid var(--border-color); }
.detail-drawer { width: min(42rem, calc(100vw - 2rem)); height: 100vh; max-height: 100vh; margin: 0 0 0 auto; padding: 0; border: 0; border-radius: 0; box-shadow: -1rem 0 3rem rgba(15, 23, 42, .2); }
.detail-drawer::backdrop { background: rgba(15, 23, 42, .38); }
.detail-drawer__header { display: flex; align-items: flex-start; justify-content: space-between; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border-color); background: #fff; }
.detail-drawer__header h2 { margin: 0; font-size: 1.125rem; }
.detail-drawer__close { min-width: 2rem; padding: .1rem .5rem; border: 0; background: transparent; color: #64748b; font-size: 1.75rem; line-height: 1; }
.detail-drawer__close:hover { background: #f1f5f9; color: #0f172a; }
.detail-drawer iframe { display: block; width: 100%; height: calc(100% - 5rem); border: 0; background: #f6f8fb; }
.trial-api-gap { margin: 0; }
.trial-workbench { max-width: 100%; gap: 1.5rem; }
.trial-workbench-section { padding: 1.25rem; border: 1px solid var(--border-color); border-radius: .75rem; background: #fff; }
.trial-source-card, .trial-result-grid article { border: 1px solid var(--border-color); box-shadow: 0 1px 2px rgba(15, 23, 42, .03); }

@media (max-width: 75rem) { .product-main { padding-inline: 1.5rem; } .stat-card-row { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* Trial Data Workbench V1: a focused, desktop-first product surface. */
.trial-workbench-heading h1 { margin: 0; font-size: 2rem; letter-spacing: -0.03em; }
.trial-workbench { display: grid; gap: 2.5rem; max-width: 72rem; padding-bottom: 2rem; }
.trial-workbench-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--text-muted); }
.trial-completion-notice { position: relative; border-left: .3rem solid #079455; }
.trial-notice-close { margin-left: auto; padding: .1rem .45rem; border: 0; background: transparent; color: inherit; font-size: 1.25rem; }
.trial-status-pill { display: inline-flex; padding: .2rem .55rem; border-radius: 999px; background: #eef2f6; color: #475467; font-size: .8125rem; font-weight: 700; white-space: nowrap; }
.trial-status-pill--completed { background: #ecfdf3; color: #067647; }
.trial-status-pill--confirm { background: #eff4ff; color: #175cd3; }
.trial-status-pill--manual, .trial-status-pill--unmatched { background: #fffaeb; color: #93370d; }
.trial-status-pill--hold { background: #f2f4f7; color: #475467; }
.trial-data-status { border: 1px solid var(--border-color); border-radius: .75rem; background: var(--surface); }
.trial-data-status > summary { cursor: pointer; padding: 1rem 1.25rem; color: var(--text-muted); font-weight: 700; }
.trial-data-status[open] > .trial-workbench-section { border: 0; border-top: 1px solid var(--border-color); border-radius: 0; }
.trial-workbench-section { display: grid; gap: 1rem; }
.trial-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; }
.trial-section-heading h2 { margin: 0; font-size: 1.15rem; }
.trial-section-heading p { margin: .25rem 0 0; color: var(--text-muted); }
.trial-source-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.trial-source-card { padding: 1.25rem; border-radius: .8rem; background: var(--surface); }
.trial-source-card h3 { margin: 0; font-size: 1rem; }
.trial-status { margin: .75rem 0 1rem; color: #175cd3; font-size: 1.25rem; font-weight: 800; }
.trial-source-card dl, .trial-detail-list { display: grid; gap: .5rem; margin: 0; }
.trial-source-card dl div, .trial-detail-list div { display: grid; grid-template-columns: minmax(7rem, .8fr) minmax(0, 1.2fr); gap: 1rem; }
.trial-source-card dt, .trial-detail-list dt { color: var(--text-muted); font-size: .875rem; }
.trial-source-card dd, .trial-detail-list dd { margin: 0; overflow-wrap: anywhere; }
.trial-upload-form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem 1rem; padding: 1rem; border-radius: .8rem; background: var(--surface); }
.trial-upload-form label { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: .75rem; min-width: 0; font-weight: 700; }
.trial-upload-form input[type="file"] { min-width: 0; max-width: 100%; }
.trial-file-name, .trial-upload-status { grid-column: 1 / -1; margin: 0; color: var(--text-muted); font-size: .875rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trial-preview { display: grid; grid-template-rows: auto auto minmax(0, 1fr) auto; gap: 1rem; min-height: 0; padding: 1rem; border-radius: .65rem; background: #eff4ff; color: #1849a9; }
.trial-preview-summary { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.25rem; }
.trial-preview-summary strong { font-size: 1rem; }
.trial-preview-summary span { color: #475467; font-size: .875rem; }
.trial-selection-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.trial-selection-toolbar > div { display: flex; flex-wrap: wrap; gap: .5rem; }
.trial-selection-toolbar button { margin: 0; }
.trial-preview-table-scroll { min-height: 0; overflow: auto; border: 1px solid #c8d7f2; border-radius: .5rem; background: #fff; }
.trial-preview-table { width: 100%; min-width: 56rem; border-collapse: collapse; color: var(--text); font-size: .875rem; table-layout: fixed; }
.trial-preview-table th, .trial-preview-table td { padding: .7rem .75rem; border-bottom: 1px solid var(--border-color); text-align: left; vertical-align: middle; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trial-preview-table th { position: sticky; top: 0; z-index: 1; background: #f8fbff; color: #344054; font-size: .8125rem; }
.trial-preview-table tbody tr:hover { background: #f8fbff; }
.trial-preview-table th:nth-child(2) { width: 7.25rem; }
.trial-preview-table th:nth-child(3) { width: 7.5rem; }
.trial-preview-table th:nth-child(4) { width: 13rem; }
.trial-preview-table th:nth-child(5) { width: 7rem; }
.trial-preview-table th:nth-child(6) { width: 11rem; }
.trial-preview-table th:nth-child(7) { width: 8rem; }
.trial-select-column { width: 3.5rem; text-align: center !important; }
.trial-preview-actions { position: sticky; bottom: 0; display: flex; justify-content: flex-end; gap: .75rem; padding-top: 1rem; border-top: 1px solid #c8d7f2; background: #eff4ff; }
.trial-inline-error { margin: 0; color: #b42318; }
.trial-result-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.trial-result-grid article { display: grid; gap: .25rem; min-height: 6.5rem; padding: 1.25rem; border-radius: .8rem; background: var(--surface); }
.trial-result-grid strong { font-size: 2rem; font-variant-numeric: tabular-nums; }
.trial-result-grid span { color: var(--text-muted); font-size: .875rem; }
.trial-exception-card { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.5rem; border-radius: .8rem; background: #fffaeb; }
.trial-card-kicker { margin: 0 0 .25rem; color: #93370d; font-size: .75rem; font-weight: 800; letter-spacing: .06em; }
.trial-exception-card h3 { margin: 0 0 .4rem; font-size: 1.1rem; }
.trial-exception-card p:last-child { margin: 0; color: var(--text-muted); }
.trial-empty-state { padding: 1.25rem; border-radius: .8rem; background: var(--surface-subtle); color: var(--text-muted); }
.trial-update-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--border-color); }
.trial-update-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .85rem 0; border-bottom: 1px solid var(--border-color); }
.trial-update-list li > div { display: grid; gap: .15rem; }
.trial-update-list li span, .trial-update-list li small { color: var(--text-muted); font-size: .875rem; }
.trial-update-list time { color: var(--text-muted); font-size: .875rem; white-space: nowrap; }
.trial-dialog { width: min(52rem, calc(100vw - 2rem)); max-height: calc(100vh - 2rem); padding: 1.5rem; border: 0; border-radius: 1rem; color: var(--text); box-shadow: 0 1.5rem 5rem rgba(16, 24, 40, .24); }
.trial-dialog::backdrop { background: rgba(16, 24, 40, .45); }
.trial-dialog--small { width: min(32rem, calc(100vw - 2rem)); }
.trial-dialog--upload { width: min(82rem, calc(100vw - 2rem)); height: min(54rem, calc(100vh - 2rem)); max-height: calc(100vh - 2rem); padding: 0; overflow: hidden; }
.trial-dialog--upload > .trial-workbench-section { display: grid; grid-template-rows: auto auto minmax(0, 1fr); height: 100%; min-height: 0; padding: 1.25rem; }
.trial-dialog--upload .trial-section-heading { align-items: start; }
.trial-dialog--upload .trial-preview { height: 100%; }
body:has(.trial-dialog[open]) { overflow: hidden; }
.trial-dialog-header { display: flex; align-items: start; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; }
.trial-dialog-header h2 { margin: 0; font-size: 1.4rem; }
.trial-dialog-close { min-width: 2.25rem; padding: .15rem .55rem; color: var(--text-muted); border-color: transparent; background: transparent; font-size: 1.6rem; line-height: 1; }
.trial-dialog-close:hover { color: var(--text); background: var(--surface-subtle); }
.trial-identity-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.trial-identity-columns > section { padding: 1.25rem; border-radius: .75rem; background: var(--surface-subtle); }
.trial-identity-columns h3, .trial-evidence-section h3, .trial-why-blocked h3, .trial-next-step h3 { margin-top: 0; font-size: 1rem; }
.trial-evidence-section, .trial-next-step, .trial-technical-details { margin-top: 1.5rem; }
.trial-comparison-list { display: grid; gap: .5rem; margin: 0; padding: 0; list-style: none; }
.trial-comparison-list li { display: grid; grid-template-columns: 1.5rem minmax(8rem, 1fr) auto; align-items: center; gap: .5rem; padding: .55rem 0; border-bottom: 1px solid var(--border-color); }
.trial-comparison-list strong { color: #175cd3; }
.trial-comparison-list em { color: var(--text-muted); font-size: .875rem; font-style: normal; }
.trial-candidate-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.trial-candidate-list article { display: grid; gap: .35rem; padding: 1rem; border: 1px solid var(--border-color); border-radius: .65rem; background: var(--surface-subtle); }
.trial-candidate-list article span, .trial-candidate-list article small { color: var(--text-muted); font-size: .875rem; }
.trial-candidate-list button { justify-self: start; margin-top: .3rem; }
.trial-why-blocked { padding: 1.25rem; border-radius: .75rem; background: #fffaeb; }
.trial-why-blocked p { max-width: 42rem; margin-bottom: 0; }
.trial-action-row { display: flex; flex-wrap: wrap; align-items: start; gap: .75rem; }
.trial-action-row .button--secondary { color: var(--text); }
.trial-action-row span { display: grid; gap: .25rem; }
.trial-action-row small { color: var(--text-muted); }
.trial-technical-details { color: var(--text-muted); }
.trial-technical-details summary { cursor: pointer; }
.trial-technical-details .trial-detail-list { margin-top: 1rem; }
.trial-supplement-form { display: grid; gap: 1rem; margin-top: 1.25rem; }
.trial-supplement-form label { display: grid; gap: .35rem; font-weight: 700; }
.trial-supplement-form input, .trial-supplement-form select, .trial-supplement-form textarea { width: 100%; padding: .6rem; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); }
.trial-business-summary { gap: 1.25rem; }
.trial-metrics-group { display: grid; gap: .6rem; }
.trial-metrics-group h3 { margin: 0; color: var(--text-muted); font-size: .85rem; }
.trial-metrics-group .metric-grid { margin: 0; }
.trial-course-hour-summary { border-top: 1px solid var(--border-color); padding-top: .9rem; }
.trial-course-hour-summary summary { cursor: pointer; color: var(--text-muted); font-weight: 700; }
.trial-course-hour-summary .metric-grid { margin-top: .9rem; }
.trial-business-table { min-width: 62rem; }
.trial-business-table td small, .trial-business-name small { display: block; margin-top: .2rem; color: var(--text-muted); font-size: .78rem; }
.trial-business-name { min-width: 10rem; }
.trial-business-context { font-size: .72rem !important; }
.trial-detail-panel { display: grid; gap: 1rem; width: 100%; }
.trial-detail-panel .trial-detail-list { max-width: 48rem; }
.trial-detail-page { display: grid; gap: 1rem; }
.trial-detail-page__heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: 1.25rem; border: 1px solid var(--border-color); border-radius: .75rem; background: #fff; }
.trial-detail-page__heading h2 { margin: .15rem 0 .35rem; }
.trial-detail-list--wide { max-width: 58rem; }
.trial-detail-evidence-table th, .trial-detail-evidence-table td { white-space: nowrap; }
@media (max-width: 700px) {
  .trial-detail-page__heading { align-items: stretch; flex-direction: column; }
  .trial-detail-evidence-table th, .trial-detail-evidence-table td { white-space: normal; }
}
.trial-observation-editor { display: flex; flex-wrap: wrap; align-items: end; gap: .6rem; padding-top: .9rem; border-top: 1px solid var(--border-color); }
.trial-observation-editor label { display: grid; gap: .25rem; color: var(--text-muted); font-size: .85rem; }
.trial-observation-editor input { min-height: 2.25rem; padding: .35rem .5rem; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); }
.trial-business-subtle { color: var(--text-muted); font-size: .875rem; }
.trial-breakdown-details { margin-top: .9rem; }
.trial-breakdown-details summary { cursor: pointer; color: var(--text-muted); font-size: .85rem; }
.trial-breakdown-table { min-width: 58rem; margin-top: .75rem; }
@media (max-width: 64rem) {
  .trial-source-grid, .trial-result-grid, .trial-identity-columns, .trial-candidate-list { grid-template-columns: 1fr; }
  .trial-upload-form { grid-template-columns: 1fr; align-items: stretch; }
  .trial-upload-form label { grid-template-columns: 1fr; }
  .trial-selection-toolbar { align-items: stretch; flex-direction: column; }
  .trial-preview-actions { justify-content: stretch; }
  .trial-preview-actions button { flex: 1 1 auto; }
  .trial-exception-card, .trial-workbench-toolbar { align-items: stretch; flex-direction: column; }
}

/* C-028: business history uses available width without squeezing text. */
.import-history-panel { width: 100%; min-width: 0; }
.import-timestamps { margin: .5rem 0; }
.import-timestamps dd { margin: 0; }
.import-timestamps time { overflow-wrap: normal; word-break: normal; }
.import-timestamps > div + div { margin-top: .5rem; }
.import-history-table { width: 100%; min-width: 0; table-layout: fixed; }
.import-history-table th, .import-history-table td { font-size: .9375rem; white-space: normal; overflow-wrap: anywhere; padding: 1rem .65rem; vertical-align: top; }
.import-history-table th:nth-child(1) { width: 16%; }
.import-history-table th:nth-child(2) { width: 11%; }
.import-history-table th:nth-child(3) { width: 14%; }
.import-history-table th:nth-child(4) { width: 12%; }
.import-history-table th:nth-child(5) { width: 19%; }
.import-history-table th:nth-child(6) { width: 15%; }
.import-history-table th:nth-child(7) { width: 13%; }
.import-history-actions { display: grid; gap: .65rem; }
.import-result { display: inline-block; font-weight: 650; color: #334155; }
.import-result--completed { color: #166534; }
.import-result--failed { color: #b91c1c; }
.import-result--partial, .import-result--processing { color: #92400e; }
.import-result--revoked { color: #64748b; }
@media (max-width: 900px) {
  .import-history-table, .import-history-table tbody, .import-history-table tr, .import-history-table td { display: block; width: 100%; }
  .import-history-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .import-history-table tr { border-bottom: 2px solid var(--border-color); padding: .75rem 0; }
  .import-history-table td { display: grid; grid-template-columns: 6rem minmax(0, 1fr); gap: .5rem; padding: .5rem; border: 0; }
  .import-history-table td > p { grid-column: 2; margin: 0; }
  .import-history-table td::before { content: attr(data-label); font-weight: 600; color: var(--text-muted); }
}

body:has(.import-history-panel), body:has(#import-business-detail) { min-width: 20rem; }
@media (max-width: 64rem) {
  body:has(.import-history-panel) .sidebar, body:has(#import-business-detail) .sidebar { position: static; height: auto; }
  body:has(.import-history-panel) .product-main, body:has(#import-business-detail) .product-main { padding-inline: 1rem; }
}

/* C-029/C-030: readable class names, independently navigable student pages. */
.student-business-list .v2-table { width: 100%; min-width: 820px; font-size: 15px; }
.student-business-list .student-class-cell { width: 36%; min-width: 260px; }
.student-class-cell { white-space: normal; overflow-wrap: anywhere; line-height: 1.65; }
.student-class-cell a { display: block; margin: 3px 0; }
.student-class-cell summary { color: var(--color-text-secondary, #526477); cursor: pointer; padding-top: 4px; }
.student-business-detail .panel { margin-top: 20px; }
.student-business-detail .v2-table { width: 100%; font-size: 15px; }
.student-business-detail .detail-grid dd { font-size: 16px; }
.student-business-detail .student-technical > summary { cursor: pointer; font-weight: 600; }
.student-business-detail .student-technical .panel { box-shadow: none; }

@media (min-width: 1100px) {
  .student-business-detail section[aria-label="基本信息"] .detail-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .student-business-detail section[aria-label="基本信息"] .detail-grid > div:last-child { grid-column: 1 / -1; }
}

/* C-032: class detail only. */
.class-business-detail > section, .class-business-detail > details, .class-business-detail > form { margin-top: 20px; }
.class-business-detail .v2-table { width: 100%; min-width: 680px; font-size: 15px; }
.class-business-detail .v2-table td { overflow-wrap: anywhere; }
.class-business-detail .detail-grid dd { font-size: 16px; }
.class-business-detail .class-technical > summary { cursor: pointer; font-weight: 600; }
.class-business-detail .class-technical .panel { box-shadow: none; }
@media (min-width: 1100px) {
  .class-business-detail section[aria-label="基本信息"] .detail-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
/* Dashboard only: keep the shared shell and completed detail pages intact. */
.product-main:has(.dashboard-business) > .top-status-bar { display: none; }
.dashboard-environment { color: #526579; font-size: .85rem; margin: 0 0 12px; }
.dashboard-business { display: grid; gap: 20px; min-width: 0; }
.dashboard-business h2 { margin-top: 0; }
.dashboard-stock, .dashboard-metrics, .dashboard-functions { display: grid; gap: 16px; }
.dashboard-stock { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dashboard-stock > a { display: flex; align-items: center; gap: 20px; padding: 18px 22px; background: #f3f7fc; border: 1px solid #dce6f1; border-radius: 12px; color: #19324b; text-decoration: none; }
.dashboard-stock strong { font-size: 2rem; margin-left: auto; }
.dashboard-stock a > span:last-child { font-size: .8rem; color: #386194; }
.dashboard-ranges { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.dashboard-filter { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.dashboard-filter label { display: grid; gap: 6px; flex: 1 1 160px; }
.dashboard-filter input, .dashboard-filter select { width: 100%; min-width: 0; }
.dashboard-filter select { min-height: 38px; padding: 8px; border: 1px solid #bdc9d6; border-radius: 6px; background: white; }
.dashboard-metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 20px 0; }
.dashboard-metrics > * { display: grid; align-content: start; gap: 10px; padding: 18px; border: 1px solid #e0e7ef; border-radius: 12px; color: #19324b; text-decoration: none; }
.dashboard-metrics strong { font-size: 1.9rem; line-height: 1.3; }
.dashboard-metrics strong small { font-size: .8rem; font-weight: normal; }
.dashboard-metrics small { color: #627487; line-height: 1.6; }
.dashboard-conversion { border-top: 1px solid #e3e9ef; padding-top: 8px; }
.dashboard-conversion dl { display: flex; flex-wrap: wrap; gap: 16px 32px; }
.dashboard-conversion dt { color: #627487; font-size: .85rem; }
.dashboard-conversion dd { margin: 6px 0; font-size: 1.2rem; font-weight: 600; }
.dashboard-actions li, .dashboard-waiting li { margin: 10px 0; }
.dashboard-activity { list-style: none; padding: 0; margin-bottom: 0; }
.dashboard-activity li { display: grid; grid-template-columns: 145px minmax(0, 1fr) auto; gap: 16px; padding: 15px 0; border-top: 1px solid #e5eaf0; }
.dashboard-activity time, .dashboard-activity p, .dashboard-activity li > span { color: #657688; font-size: .85rem; }
.dashboard-activity p { margin: 6px 0 0; }
.dashboard-functions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dashboard-functions a { display: grid; gap: 8px; text-decoration: none; padding: 16px; border: 1px solid #e1e7ef; border-radius: 10px; }
.dashboard-functions span { color: #627487; font-size: .9rem; }
.dashboard-technical { overflow-wrap: anywhere; }
.dashboard-technical > summary { cursor: pointer; font-weight: 600; }
.dashboard-technical nav { display: flex; flex-wrap: wrap; gap: 16px; }
@media (max-width: 1100px) { .dashboard-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .dashboard-stock, .dashboard-metrics, .dashboard-functions { grid-template-columns: minmax(0, 1fr); } .dashboard-activity li { grid-template-columns: minmax(0, 1fr); gap: 6px; } }

/* One responsive shell rule after desktop overrides; tables scroll locally. */
.sidebar, .data-query-panel, .panel { min-width: 0; }
.detail-grid dd, .error-details dd { overflow-wrap: anywhere; }
@media (max-width: 64rem) {
  .sidebar { position: static; height: auto; width: 100%; padding: .75rem; }
  .product-name { padding: .25rem .5rem .5rem; }
  .nav-list { display: flex; flex-wrap: wrap; margin: .5rem 0 0; }
  .nav-divider, .sidebar-note { display: none; }
  .product-main { padding: 0 1rem 1.5rem; }
  .top-status-bar { flex-wrap: wrap; gap: .5rem 1rem; }
}
@media (max-width: 640px) {
  .data-query-panel__top > *, .search-input { min-width: 0; max-width: 100%; }
  .data-query-panel input, .data-query-panel select { max-width: 100%; }
  .stat-card-row, .metric-grid, .detail-grid { grid-template-columns: minmax(0, 1fr); }
  .page-header { margin-top: 1rem; }
}