/* AI 高级功能页共享样式，复用 workbench-tubox.css 的设计令牌。 */

[hidden] {
  display: none !important;
}

.ai-body {
  background: var(--wb-bg);
  color: var(--wb-fg);
  min-height: 100vh;
}

.ai-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 64px;
  padding: 10px 22px;
  border-bottom: 1px solid var(--wb-line);
  background: color-mix(in srgb, var(--wb-panel) 92%, transparent);
  backdrop-filter: blur(12px);
}

.ai-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border: 1px solid var(--wb-line);
  border-radius: 9px;
  color: var(--wb-muted);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}

.ai-back:hover {
  color: var(--wb-fg);
  border-color: var(--wb-brand);
  background: var(--wb-subtle);
}

.ai-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.ai-brand__mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--wb-brand), var(--wb-accent));
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: -.02em;
  flex: 0 0 auto;
}

.ai-brand h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.03em;
  white-space: nowrap;
}

.ai-brand p {
  margin: 1px 0 0;
  color: var(--wb-muted);
  font-size: 11px;
  white-space: nowrap;
}

.ai-header__spacer {
  flex: 1;
}

.ai-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--wb-subtle);
  color: var(--wb-muted);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.ai-chip.is-ok {
  background: var(--wb-success-soft);
  color: var(--wb-success);
}

.ai-chip.is-bad {
  background: var(--wb-danger-soft);
  color: var(--wb-danger);
}

.ai-main {
  max-width: 1360px;
  margin: 0 auto;
  padding: 20px 22px 48px;
}

.ai-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 372px;
  gap: 18px;
  align-items: start;
}

@media (max-width: 1024px) {
  .ai-layout {
    grid-template-columns: 1fr;
  }
}

.ai-panel {
  border: 1px solid var(--wb-line);
  border-radius: var(--wb-radius-panel);
  background: var(--wb-panel);
  box-shadow: var(--wb-shadow-soft);
  overflow: hidden;
}

.ai-panel + .ai-panel {
  margin-top: 16px;
}

.ai-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--wb-line);
  color: var(--wb-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .02em;
}

.ai-panel__head h2 {
  margin: 0;
  color: var(--wb-fg);
  font-size: 13px;
  font-weight: 700;
}

.ai-panel__body {
  padding: 16px;
}

.ai-stage {
  position: relative;
}

.ai-drop {
  display: grid;
  place-items: center;
  gap: 6px;
  min-height: 300px;
  padding: 28px;
  border: 1.5px dashed var(--wb-line);
  border-radius: 14px;
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--wb-brand) 8%, transparent), transparent 62%),
    var(--wb-subtle);
  color: var(--wb-muted);
  text-align: center;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, color .15s ease;
}

.ai-drop:hover,
.ai-drop.is-drag {
  border-color: var(--wb-brand);
  color: var(--wb-fg);
  background: var(--wb-brand-soft);
}

.ai-drop i {
  font-size: 34px;
  color: var(--wb-brand);
}

.ai-drop strong {
  color: var(--wb-fg);
  font-size: 14px;
}

.ai-drop small {
  font-size: 11px;
}

.ai-drop.is-compact {
  min-height: 150px;
}

.ai-file-input {
  display: none;
}

.ai-preview {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 300px;
  border-radius: 14px;
  background:
    linear-gradient(45deg, var(--wb-subtle-2) 25%, transparent 25%, transparent 75%, var(--wb-subtle-2) 75%),
    linear-gradient(45deg, var(--wb-subtle-2) 25%, var(--wb-subtle) 25%, var(--wb-subtle) 75%, var(--wb-subtle-2) 75%);
  background-size: 22px 22px;
  background-position: 0 0, 11px 11px;
  overflow: hidden;
}

.ai-preview canvas,
.ai-preview video,
.ai-preview img {
  display: block;
  max-width: 100%;
  max-height: 62vh;
}

.ai-preview canvas {
  cursor: crosshair;
  touch-action: none;
}

.ai-preview video {
  width: 100%;
}

.ai-stage-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  color: var(--wb-muted);
  font-size: 12px;
}

.ai-stage-tools input[type="range"] {
  flex: 1;
  min-width: 160px;
  accent-color: var(--wb-brand);
}

.ai-field {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
}

.ai-field > label {
  color: var(--wb-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.ai-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.ai-input,
.ai-select {
  width: 100%;
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--wb-line);
  border-radius: 9px;
  background: var(--wb-subtle);
  color: var(--wb-fg);
  font-size: 13px;
}

.ai-input:focus,
.ai-select:focus {
  border-color: var(--wb-brand);
  outline: none;
}

.ai-hint {
  margin: 0;
  color: var(--wb-muted);
  font-size: 11.5px;
  line-height: 1.55;
}

.ai-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 38px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: var(--wb-subtle);
  color: var(--wb-fg);
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, opacity .15s ease;
}

.ai-btn:hover:not(:disabled) {
  background: var(--wb-subtle-2);
}

.ai-btn:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.ai-btn--primary {
  width: 100%;
  background: var(--wb-brand);
  color: #fff;
}

.ai-btn--primary:hover:not(:disabled) {
  background: var(--wb-brand-hover);
}

.ai-btn--danger {
  background: var(--wb-danger-soft);
  color: var(--wb-danger);
  border-color: color-mix(in srgb, var(--wb-danger) 35%, transparent);
}

.ai-btn--ghost {
  background: transparent;
  border-color: var(--wb-line);
}

.ai-btn--sm {
  min-height: 30px;
  padding: 4px 10px;
  font-size: 11.5px;
}

.ai-btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-progress {
  display: grid;
  gap: 7px;
  margin-top: 14px;
}

.ai-progress__track {
  height: 7px;
  border-radius: 999px;
  background: var(--wb-subtle-2);
  overflow: hidden;
}

.ai-progress__fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--wb-brand), var(--wb-accent));
  transition: width .2s ease;
}

.ai-progress__meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--wb-muted);
  font-size: 11.5px;
}

.ai-note {
  padding: 10px 12px;
  border: 1px solid var(--wb-line);
  border-radius: 10px;
  background: var(--wb-subtle);
  color: var(--wb-muted);
  font-size: 11.5px;
  line-height: 1.6;
}

.ai-note--warn {
  border-color: color-mix(in srgb, var(--wb-warning) 35%, transparent);
  background: var(--wb-warning-soft);
  color: var(--wb-warning);
}

.ai-note--danger {
  border-color: color-mix(in srgb, var(--wb-danger) 35%, transparent);
  background: var(--wb-danger-soft);
  color: var(--wb-danger);
}

.ai-env {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--wb-line);
  border-radius: 10px;
  background: var(--wb-subtle);
  color: var(--wb-muted);
  font-size: 11.5px;
  line-height: 1.6;
}

.ai-env > strong {
  color: var(--wb-fg);
  font-size: 12px;
}

.ai-env dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  margin: 0;
}

.ai-env dt {
  color: var(--wb-muted);
}

.ai-env dd {
  margin: 0;
  color: var(--wb-fg);
  font-weight: 600;
  overflow-wrap: anywhere;
}

.ai-env ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 18px;
}

.ai-env.is-ok {
  border-color: color-mix(in srgb, var(--wb-success) 35%, transparent);
  background: var(--wb-success-soft);
}

.ai-env.is-ok > strong {
  color: var(--wb-success);
}

.ai-env.is-warn {
  border-color: color-mix(in srgb, var(--wb-warning) 35%, transparent);
  background: var(--wb-warning-soft);
}

.ai-env.is-warn > strong {
  color: var(--wb-warning);
}

.ai-env.is-bad {
  border-color: color-mix(in srgb, var(--wb-danger) 35%, transparent);
  background: var(--wb-danger-soft);
}

.ai-env.is-bad > strong {
  color: var(--wb-danger);
}

.ai-kv {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  font-size: 12px;
}

.ai-kv dt {
  color: var(--wb-muted);
}

.ai-kv dd {
  margin: 0;
  color: var(--wb-fg);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.ai-regions {
  display: grid;
  gap: 7px;
  max-height: 190px;
  overflow: auto;
}

.ai-region-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 9px;
  border: 1px solid var(--wb-line);
  border-radius: 9px;
  background: var(--wb-subtle);
  font-size: 12px;
}

.ai-region-item__swatch {
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: var(--wb-accent);
  flex: 0 0 auto;
}

.ai-region-item__label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.ai-region-item button {
  border: none;
  background: none;
  color: var(--wb-muted);
  cursor: pointer;
  padding: 2px 4px;
}

.ai-region-item button:hover {
  color: var(--wb-danger);
}

.ai-empty {
  padding: 14px;
  border: 1px dashed var(--wb-line);
  border-radius: 9px;
  color: var(--wb-muted);
  font-size: 12px;
  text-align: center;
}

.ai-result {
  display: grid;
  gap: 12px;
}

.ai-result video,
.ai-result img {
  width: 100%;
  border-radius: 12px;
  background: #000;
}

.ai-result__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.ai-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.ai-compare figure {
  margin: 0;
  display: grid;
  gap: 6px;
}

.ai-compare img {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--wb-line);
}

.ai-compare figcaption {
  color: var(--wb-muted);
  font-size: 11px;
  text-align: center;
}

.ai-steps {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.ai-steps li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 8px;
  color: var(--wb-muted);
  font-size: 12px;
  line-height: 1.5;
}

.ai-steps li::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--wb-brand-soft);
  color: var(--wb-brand);
  font-size: 10px;
  font-weight: 700;
}

/* ── AI hub ── */
.ai-hero {
  padding: 26px 4px 18px;
}

.ai-hero h1 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: -.04em;
}

.ai-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--wb-muted);
  font-size: 13.5px;
  line-height: 1.7;
}

.ai-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.ai-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.ai-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--wb-line);
  border-radius: 16px;
  background: var(--wb-panel);
  box-shadow: var(--wb-shadow-soft);
  text-decoration: none;
  color: inherit;
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}

a.ai-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--wb-brand) 55%, var(--wb-line));
  box-shadow: var(--wb-shadow-raised);
}

.ai-card__top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ai-card__icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--wb-brand-soft);
  color: var(--wb-brand);
  font-size: 16px;
}

.ai-card h2 {
  margin: 0;
  font-size: 15px;
  letter-spacing: -.02em;
}

.ai-card p {
  margin: 0;
  color: var(--wb-muted);
  font-size: 12.5px;
  line-height: 1.6;
}

.ai-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ai-tag {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--wb-subtle);
  color: var(--wb-muted);
  font-size: 10.5px;
  font-weight: 650;
}

.ai-tag--ok {
  background: var(--wb-success-soft);
  color: var(--wb-success);
}

.ai-tag--plan {
  background: var(--wb-warning-soft);
  color: var(--wb-warning);
}

.ai-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--wb-brand);
  font-size: 12.5px;
  font-weight: 700;
}

.ai-section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 30px 0 12px;
}

.ai-section-title h2 {
  margin: 0;
  font-size: 16px;
  letter-spacing: -.02em;
}

.ai-section-title span {
  color: var(--wb-muted);
  font-size: 12px;
}

.ai-planned {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

.ai-planned .ai-card {
  cursor: default;
  box-shadow: none;
  background: var(--wb-subtle);
}

.ai-planned .ai-card__cta {
  color: var(--wb-muted);
}

.ai-footer {
  margin-top: 34px;
  padding-top: 16px;
  border-top: 1px solid var(--wb-line);
  color: var(--wb-muted);
  font-size: 11.5px;
  line-height: 1.7;
}

.ai-footer a {
  color: var(--wb-brand);
}

@media (max-width: 560px) {
  .ai-header {
    padding: 8px 12px;
    gap: 8px;
    flex-wrap: wrap;
  }

  .ai-main {
    padding: 14px 12px 36px;
  }

  .ai-brand p {
    display: none;
  }

  .ai-compare {
    grid-template-columns: 1fr;
  }
}