/* 心镜 AI UI 2.0 — approved for AI chat and AI product only. */

body.ui-v2-page {
  --ui2-bg: oklch(98.2% 0.008 292);
  --ui2-panel: oklch(99.5% 0.003 292);
  --ui2-panel-muted: oklch(96.8% 0.018 292);
  --ui2-line: oklch(89.5% 0.018 292);
  --ui2-line-strong: oklch(82% 0.035 292);
  --ui2-ink: oklch(22% 0.025 292);
  --ui2-ink-2: oklch(43% 0.025 292);
  --ui2-purple: oklch(55% 0.22 292);
  --ui2-purple-hover: oklch(49% 0.23 292);
  --ui2-purple-soft: oklch(94.5% 0.035 292);
  --ui2-success: oklch(48% 0.14 151);
  --ui2-warning: oklch(56% 0.15 74);
  margin: 0;
  background: var(--ui2-bg);
  color: var(--ui2-ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.ui-v2-page *,
.ui-v2-page *::before,
.ui-v2-page *::after { box-sizing: border-box; }

.ui-v2-page h1,
.ui-v2-page h2,
.ui-v2-page h3 { color: var(--ui2-ink); letter-spacing: -0.02em; text-wrap: balance; }
.ui-v2-page p { text-wrap: pretty; }

.ui-v2-page .top-nav {
  height: 64px;
  padding: 0 24px;
  border-bottom: 1px solid var(--ui2-line);
  background: oklch(99.7% 0.002 292 / 0.96);
  box-shadow: none;
  backdrop-filter: saturate(150%) blur(14px);
}
.ui-v2-page .nav-logo { gap: 9px; }
.ui-v2-page .nav-logo .logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--ui2-purple);
  box-shadow: none;
}
.ui-v2-page .logo-text { color: var(--ui2-ink); font-weight: 720; letter-spacing: -0.02em; }
.ui-v2-page .nav-menu { gap: 2px; }
.ui-v2-page .nav-link {
  min-height: 42px;
  padding: 0 12px;
  border-radius: 9px;
  color: var(--ui2-ink-2);
  font-size: 13px;
  font-weight: 580;
}
.ui-v2-page .nav-link:hover { background: var(--ui2-panel-muted); color: var(--ui2-ink); }
.ui-v2-page .nav-link.active { background: var(--ui2-purple-soft); color: var(--ui2-purple); }
.ui-v2-page .nav-link.active::after { display: none; }
.ui-v2-page .dropdown-panel {
  border: 1px solid var(--ui2-line);
  border-radius: 12px;
  background: var(--ui2-panel);
  box-shadow: 0 6px 8px oklch(22% 0.03 292 / 0.1);
}
.ui-v2-page .nav-subscribe,
.ui-v2-page .nav-credits,
.ui-v2-page .nav-notify,
.ui-v2-page .nav-avatar { border-color: var(--ui2-line); box-shadow: none; }
.ui-v2-page button,
.ui-v2-page a,
.ui-v2-page input,
.ui-v2-page select,
.ui-v2-page textarea { transition: background-color 160ms ease-out, border-color 160ms ease-out, color 160ms ease-out, transform 120ms ease-out; }
.ui-v2-page button:active { transform: translateY(1px); }
.ui-v2-page button:focus-visible,
.ui-v2-page a:focus-visible,
.ui-v2-page input:focus-visible,
.ui-v2-page select:focus-visible,
.ui-v2-page textarea:focus-visible { outline: 3px solid oklch(72% 0.15 292 / 0.28); outline-offset: 2px; }

/* AI chat */
.ui-v2-chat .chat-layout {
  height: calc(100vh - 64px);
  height: calc(100dvh - 64px);
  min-height: 0;
  overflow: hidden;
  display: grid;
  grid-template-columns: 250px minmax(520px, 1fr) 300px;
  background: var(--ui2-panel);
}
.ui-v2-chat .chat-sidebar {
  width: auto;
  min-width: 0;
  border-right: 1px solid var(--ui2-line);
  background: var(--ui2-bg);
}
.ui-v2-chat .sidebar-header { min-height: 60px; padding: 0 14px; border-color: var(--ui2-line); }
.ui-v2-chat .sidebar-header h3 { color: var(--ui2-ink); font-size: 14px; }
.ui-v2-chat .btn-new-chat {
  width: 32px;
  height: 32px;
  border: 1px solid var(--ui2-line-strong);
  border-radius: 9px;
  background: var(--ui2-panel);
  color: var(--ui2-purple);
}
.ui-v2-chat .btn-new-chat:hover { border-color: var(--ui2-purple); background: var(--ui2-purple-soft); }
.ui-v2-chat .chat-history-list { padding: 10px; }
.ui-v2-chat .chat-history-item { margin: 0 0 3px; padding: 10px; border-radius: 9px; }
.ui-v2-chat .chat-history-item.active { background: var(--ui2-purple-soft); }
.ui-v2-chat .chat-history-item.active .item-icon { background: var(--ui2-purple); }
.ui-v2-chat .chat-history-item .item-title { color: var(--ui2-ink); }
.ui-v2-chat .chat-history-item .item-time { color: var(--ui2-ink-2); }
.ui-v2-chat .chat-main { min-width: 0; min-height: 0; overflow: hidden; background: var(--ui2-panel); }
.ui-v2-chat .chat-topbar {
  min-height: 72px;
  padding: 10px 20px;
  justify-content: space-between;
  border-color: var(--ui2-line);
  background: var(--ui2-panel);
}
.ui2-page-title h1 { margin: 0; font-size: 18px; font-weight: 720; }
.ui2-page-title p { margin: 3px 0 0; color: var(--ui2-ink-2); font-size: 11px; }
.ui-v2-chat .topbar-actions button {
  min-height: 36px;
  padding: 0 12px;
  border-color: var(--ui2-line-strong);
  border-radius: 9px;
  background: var(--ui2-panel);
  color: var(--ui2-ink-2);
}
.ui-v2-chat .topbar-actions button:hover { border-color: var(--ui2-purple); background: var(--ui2-purple-soft); color: var(--ui2-purple); }
.ui-v2-chat .chat-messages {
  min-height: 0;
  width: 100%;
  padding: 28px max(24px, calc((100% - 900px) / 2));
  gap: 22px;
  background: var(--ui2-panel);
}
.ui-v2-chat .message-row { max-width: 820px; }
.ui-v2-chat .message-row.user .message-bubble { border-radius: 14px 14px 4px 14px; background: var(--ui2-purple-soft); color: var(--ui2-ink); }
.ui-v2-chat .message-row.ai .message-bubble { padding: 0; border: 0; background: transparent; box-shadow: none; }
.ui-v2-chat .chat-input-area {
  width: calc(100% - 40px);
  max-width: 900px;
  margin: 0 auto 20px;
  padding: 9px 10px 8px;
  border: 1px solid var(--ui2-line-strong);
  border-radius: 14px;
  background: var(--ui2-panel);
  box-shadow: 0 4px 8px oklch(22% 0.03 292 / 0.06);
}
.ui-v2-chat .chat-input-area:focus-within { border-color: var(--ui2-purple); box-shadow: 0 0 0 3px oklch(72% 0.15 292 / 0.16); }
.ui-v2-chat .input-wrapper { border: 0; background: transparent; box-shadow: none; }
.ui-v2-chat .input-wrapper textarea { min-height: 54px; padding: 10px 10px 6px; color: var(--ui2-ink); }
.ui-v2-chat .input-wrapper textarea::placeholder { color: oklch(47% 0.025 292); }
.ui-v2-chat .btn-send { width: 40px; height: 40px; border-radius: 10px; background: var(--ui2-purple); }
.ui-v2-chat .btn-send:hover { background: var(--ui2-purple-hover); }
.ui-v2-chat .input-tools { align-items: flex-end; border-top: 1px solid var(--ui2-line); padding-top: 7px; }
.ui-v2-chat .tool-btn {
  min-height: 32px;
  padding: 0 9px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ui2-ink-2);
}
.ui-v2-chat .tool-btn:hover { background: var(--ui2-purple-soft); color: var(--ui2-purple); }
.ui-v2-chat .model-selector select { min-height: 34px; border-color: var(--ui2-line); background-color: var(--ui2-panel); color: var(--ui2-ink); }
.ui-v2-chat .model-billing-hint,
.ui-v2-chat .chat-input-hint { color: var(--ui2-ink-2); }
.ui-v2-chat .welcome-logo .logo-mark { background: var(--ui2-purple); box-shadow: none; }
.ui-v2-chat .welcome-greet { color: var(--ui2-ink); font-size: clamp(24px, 3vw, 34px); }
.ui-v2-chat .welcome-sub { color: var(--ui2-ink-2); }
.ui-v2-chat .suggestion-chip { border-color: var(--ui2-line); border-radius: 12px; background: var(--ui2-panel); box-shadow: none; }
.ui-v2-chat .suggestion-chip:hover { border-color: var(--ui2-purple); background: var(--ui2-purple-soft); transform: translateY(-1px); }
.ui2-chat-context { min-width: 0; overflow-y: auto; border-left: 1px solid var(--ui2-line); background: var(--ui2-bg); }
.ui2-context-header { min-height: 60px; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--ui2-line); }
.ui2-context-header h2 { margin: 0; font-size: 14px; }
.ui2-context-header span { padding: 4px 8px; border-radius: 999px; background: oklch(94% 0.04 151); color: var(--ui2-success); font-size: 10px; font-weight: 700; }
.ui2-chat-context section { padding: 16px; border-bottom: 1px solid var(--ui2-line); }
.ui2-chat-context h3 { margin: 0 0 12px; font-size: 12px; }
.ui2-chat-context p { margin: 0 0 8px; padding: 10px; display: flex; align-items: center; gap: 9px; border: 1px solid var(--ui2-line); border-radius: 10px; background: var(--ui2-panel); }
.ui2-chat-context p > i { width: 22px; color: var(--ui2-purple); text-align: center; }
.ui2-chat-context p span,
.ui2-chat-context p strong,
.ui2-chat-context p small { display: block; }
.ui2-chat-context p strong { font-size: 11px; }
.ui2-chat-context p small { margin-top: 2px; color: var(--ui2-ink-2); font-size: 10px; font-weight: 400; }
.ui2-chat-context ul { margin: 0; padding-left: 18px; color: var(--ui2-ink-2); font-size: 11px; line-height: 1.8; }
.ui2-context-note { margin: 14px; padding: 10px; border-radius: 10px; background: var(--ui2-purple-soft); color: var(--ui2-purple-hover); font-size: 10px; line-height: 1.5; }

/* AI product */
.ui-v2-product .page-content { max-width: none; padding: 20px 24px 48px; }
.ui-v2-product .page-header { margin-bottom: 14px; align-items: center; }
.ui-v2-product .page-header-left h1 { margin: 4px 0; color: var(--ui2-ink); font-size: 22px; }
.ui-v2-product .page-header-left p,
.ui-v2-product .breadcrumb { color: var(--ui2-ink-2); }
.ui-v2-product .btn-primary { border-color: var(--ui2-purple); background: var(--ui2-purple); box-shadow: none; }
.ui-v2-product .btn-primary:hover { background: var(--ui2-purple-hover); }
.ui-v2-product .btn-secondary,
.ui-v2-product .btn-ghost { border-color: var(--ui2-line-strong); border-radius: 9px; background: var(--ui2-panel); color: var(--ui2-ink-2); box-shadow: none; }
.ui-v2-product .btn-secondary:hover,
.ui-v2-product .btn-ghost:hover { border-color: var(--ui2-purple); background: var(--ui2-purple-soft); color: var(--ui2-purple); }
.ui-v2-product .product-mode-tabs {
  margin-bottom: 0;
  padding: 0 2px;
  gap: 22px;
  border-bottom: 1px solid var(--ui2-line);
  background: transparent;
}
.ui-v2-product .product-mode-tabs button { min-height: 46px; padding: 0 2px; border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: transparent; color: var(--ui2-ink-2); }
.ui-v2-product .product-mode-tabs button.active { border-bottom-color: var(--ui2-purple); background: transparent; color: var(--ui2-purple); }
.ui2-product-stage { display: grid; grid-template-columns: minmax(340px, 390px) minmax(0, 1fr); gap: 14px; align-items: start; padding-top: 14px; }
.ui2-product-stage:not(:has(#productResearchResults:not([hidden]))) { grid-template-columns: minmax(0, 1fr); }
.ui-v2-product #productResearchPanel {
  margin: 0;
  max-height: calc(100vh - 150px);
  overflow-y: auto;
  position: sticky;
  top: 78px;
}
.ui2-product-stage:not(:has(#productResearchResults:not([hidden]))) #productResearchPanel { position: static; max-height: none; }
.ui-v2-product .input-card,
.ui-v2-product .product-result-card,
.ui-v2-product .product-summary-stat,
.ui-v2-product .product-analysis-overview,
.ui-v2-product .product-analysis-section {
  border: 1px solid var(--ui2-line);
  border-radius: 12px;
  background: var(--ui2-panel);
  box-shadow: none;
}
.ui-v2-product .input-card-body { padding: 18px; }
.ui-v2-product .product-research-intro { padding-bottom: 14px; border-bottom: 1px solid var(--ui2-line); }
.ui-v2-product .product-research-intro p,
.ui-v2-product .product-filter-heading span,
.ui-v2-product .product-result-heading p { color: var(--ui2-ink-2); }
.ui-v2-product .product-preset-section,
.ui-v2-product .product-filter-common,
.ui-v2-product .product-natural-filter { padding: 14px 0; border: 0; border-bottom: 1px solid var(--ui2-line); border-radius: 0; background: transparent; }
.ui-v2-product .product-preset-button { border-color: var(--ui2-line); border-radius: 9px; background: var(--ui2-panel); box-shadow: none; }
.ui-v2-product .product-preset-button:hover,
.ui-v2-product .product-preset-button.is-active { border-color: var(--ui2-purple); background: var(--ui2-purple-soft); color: var(--ui2-purple); }
.ui-v2-product .product-filter-details { margin: 0; padding: 13px 0; border: 0; border-bottom: 1px solid var(--ui2-line); border-radius: 0; background: transparent; }
.ui-v2-product .form-input,
.ui-v2-product .form-select,
.ui-v2-product .product-filter-grid input,
.ui-v2-product .product-natural-row textarea {
  border-color: var(--ui2-line-strong);
  border-radius: 9px;
  background: var(--ui2-panel);
  color: var(--ui2-ink);
  box-shadow: none;
}
.ui-v2-product .form-input::placeholder,
.ui-v2-product .product-filter-grid input::placeholder,
.ui-v2-product textarea::placeholder { color: oklch(47% 0.025 292); }
.ui-v2-product .product-research-actions { padding-top: 14px; }
.ui-v2-product .product-research-status { border-color: var(--ui2-line); border-radius: 10px; background: var(--ui2-purple-soft); }
.ui-v2-product .product-research-progress { background: oklch(89% 0.04 292); }
.ui-v2-product .product-research-progress i { background: var(--ui2-purple); }
.ui-v2-product .product-research-results { min-width: 0; margin: 0; }
.ui-v2-product .product-research-summary { grid-template-columns: repeat(5, minmax(120px, 1fr)); gap: 8px; }
.ui-v2-product .product-summary-stat { padding: 12px; }
.ui-v2-product .product-summary-stat strong { color: var(--ui2-ink); font-size: 18px; }
.ui-v2-product .product-result-card { margin-top: 10px; overflow: hidden; }
.ui-v2-product .product-result-heading { padding: 14px 16px; border-bottom: 1px solid var(--ui2-line); }
.ui-v2-product .product-sku-list { gap: 0; }
.ui-v2-product .product-sku-card {
  margin: 0;
  padding: 14px 16px;
  border: 0;
  border-bottom: 1px solid var(--ui2-line);
  border-radius: 0;
  background: var(--ui2-panel);
  box-shadow: none;
}
.ui-v2-product .product-sku-card:hover { background: var(--ui2-bg); transform: none; }
.ui-v2-product .product-sku-image { width: 76px; min-width: 76px; height: 76px; border: 1px solid var(--ui2-line); border-radius: 10px; background: white; }
.ui-v2-product .product-sku-heading h3 { color: var(--ui2-ink); font-size: 14px; }
.ui-v2-product .product-score-badge { background: var(--ui2-purple-soft); color: var(--ui2-purple); }
.ui-v2-product .product-sku-meta { color: var(--ui2-ink-2); }
.ui-v2-product .product-sku-metrics { grid-template-columns: repeat(6, minmax(82px, 1fr)); gap: 6px; }
.ui-v2-product .product-sku-metric { padding: 8px; border-radius: 8px; background: var(--ui2-bg); }
.ui-v2-product .product-sku-action { padding-top: 10px; border-top: 1px solid var(--ui2-line); }
.ui-v2-product .product-result-pager { border-top: 1px solid var(--ui2-line); }
.ui-v2-product #productAnalysisPanel { width: min(1180px, 100%); margin: 16px auto 0; }
.ui-v2-product .analysis-data-toolbar { border-color: var(--ui2-line); border-radius: 10px; background: var(--ui2-bg); }
.ui-v2-product .product-analysis-report { gap: 12px; }
.ui-v2-product .product-analysis-overview,
.ui-v2-product .product-analysis-section { padding: 18px; }
.ui-v2-product .product-analysis-metric,
.ui-v2-product .product-analysis-dimension { border: 0; border-radius: 9px; background: var(--ui2-bg); }
.ui-v2-product .product-analysis-verdict { background: var(--ui2-purple-soft); color: var(--ui2-purple-hover); }

@media (max-width: 1320px) {
  .ui-v2-chat .chat-layout { grid-template-columns: 230px minmax(480px, 1fr); }
  .ui2-chat-context { display: none; }
  .ui-v2-product .product-research-summary { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .ui-v2-page .top-nav { padding: 0 14px; }
  .ui-v2-chat .chat-layout { grid-template-columns: 1fr; }
  .ui-v2-chat .chat-sidebar { display: none; }
  .ui-v2-chat .chat-topbar { min-height: 64px; }
  .ui-v2-chat .chat-input-area { width: calc(100% - 24px); margin-bottom: 12px; }
  .ui2-product-stage { grid-template-columns: 1fr; }
  .ui-v2-product #productResearchPanel { position: static; max-height: none; }
}

@media (max-width: 640px) {
  .ui-v2-product .page-content { padding: 14px 12px 40px; }
  .ui-v2-product .product-research-summary { grid-template-columns: 1fr 1fr; }
  .ui-v2-product .product-sku-card { grid-template-columns: 62px 1fr; padding: 12px; }
  .ui-v2-product .product-sku-image { width: 62px; min-width: 62px; height: 62px; }
  .ui-v2-product .product-sku-metrics { grid-template-columns: 1fr 1fr; }
  .ui-v2-chat .chat-topbar { padding: 8px 12px; }
  .ui2-page-title p { display: none; }
  .ui-v2-chat .chat-messages { padding: 20px 14px; }
  .ui-v2-chat .input-tools { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .ui-v2-page *, .ui-v2-page *::before, .ui-v2-page *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}