:root {
  --bg: #f4f7f9;
  --surface: #ffffff;
  --surface-2: #eef3f5;
  --ink: #182127;
  --muted: #68747d;
  --line: #d9e1e5;
  --teal: #16817a;
  --blue: #2f6fbd;
  --coral: #d96557;
  --gold: #b98124;
  --green: #277c4f;
  --shadow: 0 12px 32px rgba(24, 33, 39, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  font-size: 14px;
  letter-spacing: 0;
}

button,
select {
  font: inherit;
}

a {
  color: inherit;
}

input {
  width: 100%;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 16px;
  background: #172127;
  color: #eef7f5;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 8px 24px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: #f0bd5c;
  color: #172127;
  font-size: 24px;
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 16px;
  line-height: 1.4;
}

.brand span {
  margin-top: 2px;
  color: #aebcc2;
  font-size: 12px;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #d9e5e8;
  text-align: left;
  cursor: pointer;
}

.nav-item span {
  display: grid;
  place-items: center;
  width: 22px;
  color: #f0bd5c;
  font-size: 17px;
}

.nav-item:hover,
.nav-item.active {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
  color: #ffffff;
}

.workspace {
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--teal);
  font-weight: 700;
}

h1,
h2 {
  margin: 0;
}

h1 {
  max-width: 880px;
  font-size: 24px;
  line-height: 1.35;
}

h2 {
  font-size: 16px;
  line-height: 1.35;
}

.top-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.select-wrap {
  display: grid;
  gap: 5px;
  min-width: 150px;
}

.select-wrap span {
  color: var(--muted);
  font-size: 12px;
}

select {
  width: 100%;
  height: 38px;
  padding: 0 32px 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.kpi-card,
.panel,
.artifact,
.quality-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.kpi-card {
  min-height: 104px;
  padding: 16px;
}

.kpi-card span,
.kpi-card em,
.metric-panel span,
.panel-heading span,
.artifact em {
  color: var(--muted);
  font-style: normal;
}

.kpi-card span,
.metric-panel span,
.panel-heading span {
  font-size: 12px;
}

.kpi-card strong {
  display: block;
  margin: 8px 0 4px;
  font-size: 28px;
  line-height: 1.1;
}

.view {
  display: none;
}

.view.active {
  display: grid;
  gap: 18px;
}

.two-column,
.three-column {
  display: grid;
  gap: 18px;
}

.two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-column {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel {
  min-width: 0;
  padding: 16px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.action-button:hover {
  border-color: rgba(22, 129, 122, 0.42);
  color: var(--teal);
}

.metric-panel {
  min-height: 132px;
}

.metric-panel strong {
  display: block;
  margin-top: 18px;
  font-size: 32px;
  line-height: 1.1;
}

canvas {
  display: block;
  width: 100%;
  min-height: 220px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: var(--surface);
}

th,
td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}

th {
  background: var(--surface-2);
  color: #36444c;
  font-size: 12px;
  font-weight: 700;
}

td {
  color: #27343b;
}

tbody tr:hover {
  background: #f7fafb;
}

.product-name {
  display: inline-block;
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: bottom;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 7px;
  background: #e7f2f0;
  color: #11655f;
  font-size: 12px;
  font-weight: 700;
}

.image-panel img,
.image-grid img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.artifact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.artifact {
  display: grid;
  gap: 8px;
  min-height: 128px;
  padding: 16px;
  color: inherit;
  text-decoration: none;
}

.artifact span {
  color: var(--coral);
  font-size: 24px;
}

.artifact strong,
.artifact em {
  display: block;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.process-grid article {
  min-height: 112px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.process-grid span,
.process-grid em {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.process-grid span {
  color: var(--teal);
  font-weight: 800;
}

.process-grid strong {
  display: block;
  margin: 12px 0 6px;
  font-size: 17px;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.quality-card {
  min-height: 86px;
  padding: 14px;
}

.quality-card span,
.quality-card em {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.quality-card strong {
  display: block;
  margin: 7px 0 3px;
  font-size: 24px;
  line-height: 1.1;
}

.model-summary-grid .quality-card:first-child strong {
  font-size: 18px;
  line-height: 1.2;
}

.dataset-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: start;
}

.dataset-main {
  display: grid;
  gap: 14px;
  align-content: start;
}

.dataset-heading {
  align-items: flex-start;
}

.dataset-toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(140px, 0.7fr));
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7fafb;
}

.filter-field {
  display: grid;
  gap: 5px;
}

.filter-field span {
  color: var(--muted);
  font-size: 12px;
}

.dataset-aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.dataset-insights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.dataset-insights article {
  min-height: 72px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfc;
}

.dataset-insights span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.dataset-insights strong {
  display: block;
  margin-top: 7px;
  font-size: 22px;
  line-height: 1.1;
}

.dataset-table-wrap {
  max-height: 500px;
}

.dataset-table {
  min-width: 860px;
  table-layout: fixed;
}

.dataset-table th,
.dataset-table td {
  padding: 10px;
  white-space: nowrap;
}

.dataset-table th:first-child,
.dataset-table td:first-child {
  width: 205px;
}

.dataset-table th:nth-child(2),
.dataset-table td:nth-child(2) {
  width: 104px;
}

.dataset-table th:nth-child(3),
.dataset-table td:nth-child(3) {
  width: 122px;
}

.dataset-table th:nth-child(4),
.dataset-table td:nth-child(4) {
  width: 76px;
}

.dataset-table th:nth-child(5),
.dataset-table td:nth-child(5) {
  width: 64px;
}

.dataset-table th:nth-child(6),
.dataset-table td:nth-child(6) {
  width: 64px;
}

.dataset-table th:nth-child(7),
.dataset-table td:nth-child(7) {
  width: 72px;
}

.dataset-table th:nth-child(8),
.dataset-table td:nth-child(8) {
  width: 72px;
}

.dataset-table th:nth-child(9),
.dataset-table td:nth-child(9) {
  width: 64px;
}

.dataset-table .product-name {
  max-width: 160px;
}

.dataset-table th {
  cursor: pointer;
  position: sticky;
  top: 0;
  z-index: 1;
  user-select: none;
}

.dataset-table th::after {
  content: "↕";
  margin-left: 6px;
  color: #97a5ad;
  font-size: 11px;
}

.dataset-table th.sorted-asc::after {
  content: "↑";
  color: var(--teal);
}

.dataset-table th.sorted-desc::after {
  content: "↓";
  color: var(--teal);
}

.platform-tags {
  display: inline-flex;
  gap: 4px;
  margin-top: 4px;
}

.platform-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 0 5px;
  border-radius: 5px;
  background: #eef3f5;
  color: #516069;
  font-size: 11px;
}

.empty-row td {
  height: 128px;
  color: var(--muted);
  text-align: center;
}

.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.pagination-bar button {
  min-width: 74px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}

.pagination-bar button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.quality-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.quality-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.quality-list li:last-child {
  border-bottom: 0;
}

.quality-list span {
  color: var(--muted);
}

.quality-list strong {
  font-size: 15px;
}

.field-source {
  color: var(--blue);
  font-weight: 700;
}

.analysis-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: start;
}

.analysis-main {
  min-height: 406px;
}

.analysis-aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.compact-table table {
  min-width: 720px;
}

.compact-table th,
.compact-table td {
  padding: 10px 12px;
}

.model-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.model-card {
  position: relative;
  display: grid;
  gap: 14px;
  min-height: 154px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.model-card.best {
  border-color: rgba(22, 129, 122, 0.55);
  background: #f7fbfa;
}

.model-card span,
.model-card em,
.model-card dt {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.model-card strong {
  display: block;
  margin: 6px 0 3px;
  font-size: 20px;
}

.model-card dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.model-card div,
.model-card dd,
.model-card dt {
  min-width: 0;
}

.model-card dd {
  margin: 4px 0 0;
  font-weight: 800;
}

.model-card b {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 8px;
  border-radius: 7px;
  background: #e7f2f0;
  color: var(--teal);
  font-size: 12px;
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .nav-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .kpi-grid,
  .two-column,
  .three-column,
  .process-grid,
  .quality-grid,
  .dataset-insights,
  .dataset-layout,
  .dataset-toolbar,
  .analysis-layout,
  .model-card-grid,
  .artifact-grid,
  .image-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dataset-aside {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .workspace {
    padding: 16px;
  }

  .topbar,
  .top-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .kpi-grid,
  .two-column,
  .three-column,
  .process-grid,
  .quality-grid,
  .dataset-insights,
  .dataset-layout,
  .dataset-toolbar,
  .dataset-aside,
  .analysis-layout,
  .analysis-aside,
  .model-card-grid,
  .artifact-grid,
  .image-grid,
  .nav-list {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 20px;
  }
}