:root {
  --bg: #0b0f14;
  --panel: #141a22;
  --panel-2: #1b2330;
  --text: #e8edf5;
  --muted: #8b97a8;
  --accent: #58a6ff;
  --accent-2: #7ee787;
  --warn: #f0b429;
  --border: #2a3444;
  --radius: 12px;
  --nav-h: 56px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, "PingFang TC", "Noto Sans TC", sans-serif;
  background: radial-gradient(ellipse at 0% 0%, #1a2a44 0%, transparent 45%), var(--bg);
  color: var(--text);
  line-height: 1.55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 1rem;
  height: var(--nav-h);
  padding: 0 1.25rem;
  background: rgba(11, 15, 20, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.site-header img { height: 28px; }
.site-header .brand { display: flex; align-items: center; line-height: 0; }
.site-library {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--muted);
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
}
.site-library:hover { color: var(--text); background: var(--panel-2); text-decoration: none; }
.site-nav { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.site-nav a {
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-nav a[aria-current="page"], .site-nav a:hover {
  color: var(--text);
  background: var(--panel-2);
  text-decoration: none;
}
main { max-width: 1080px; margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }
.hero h1 { margin: 0 0 0.35rem; font-size: 1.6rem; }
.hero p { color: var(--muted); margin: 0 0 1.25rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}
.card h2, .card h3 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  text-transform: uppercase;
}
.badge.ready { background: #1e3d2f; color: var(--accent-2); }
.badge.experimental { background: #2a2440; color: #c9a0ff; }
.badge.pending, .badge.stub { background: #2a3040; color: var(--muted); }
.muted { color: var(--muted); font-size: 0.9rem; }
pre, code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
pre {
  background: #0a0e13;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  overflow: auto;
  font-size: 0.78rem;
}
video, audio { width: 100%; max-width: 360px; border-radius: 8px; }
figure { margin: 0; }
figure img { width: 100%; border-radius: 8px; border: 1px solid var(--border); }
footer { margin-top: 2rem; color: var(--muted); font-size: 0.82rem; }

/* Showcase v3 layout */
.showcase-strip { margin-bottom: 2rem; }
.showcase-strip-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.showcase-strip-head h2 { margin: 0; font-size: 1.1rem; }
.showcase-strip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr minmax(220px, 1fr);
  gap: 1rem;
  align-items: start;
}
.showcase-audio-col p { margin: 0.35rem 0; font-size: 0.88rem; }
.showcase-section { margin-bottom: 2.5rem; }
.showcase-section-head { margin-bottom: 1rem; }
.showcase-section-head h2 { margin: 0 0 0.25rem; font-size: 1.25rem; }
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.showcase-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.showcase-card--pilot,
.showcase-card--workbench { border-left: 3px solid #c9a0ff; }
.showcase-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.showcase-tag {
  font-size: 0.68rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: rgba(88, 166, 255, 0.12);
  color: var(--accent);
  border: 1px solid rgba(88, 166, 255, 0.25);
}
.showcase-stack {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.5;
}
.showcase-stack code { font-size: 0.72rem; }
.showcase-hero { margin-bottom: 1.5rem; }
.showcase-hero h1 { margin: 0 0 0.35rem; font-size: 1.75rem; }
.showcase-subnav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.showcase-nav-pill {
  font-size: 0.82rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  color: var(--muted);
  background: var(--panel-2);
  border: 1px solid var(--border);
  text-decoration: none;
}
.showcase-nav-pill:hover {
  color: var(--text);
  border-color: var(--accent);
  text-decoration: none;
}
.showcase-experiments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}
.showcase-experiment-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
}
.showcase-experiment-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}
.showcase-media video { margin-top: 0.5rem; }
.showcase-card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}
.showcase-card-head h3 { margin: 0; font-size: 1rem; flex: 1; min-width: 12rem; }
.showcase-axis {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
}
.showcase-axis--video { background: #1a2a44; color: #7eb8ff; }
.showcase-axis--img { background: #2a1a44; color: #c9a0ff; }
.showcase-axis--text { background: #1a3d2a; color: #7ee787; }
.showcase-hub-cta { margin: 0.5rem 0 0.75rem; }
.showcase-duration {
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: 4px;
}
.showcase-pipeline { margin: 0; font-size: 0.82rem; line-height: 1.6; }
.showcase-pipeline code { font-size: 0.75rem; }
.pipe-arrow { color: var(--muted); }
.showcase-media video { max-width: 100%; }
.showcase-card-cta {
  display: inline-block;
  font-weight: 600;
  font-size: 0.88rem;
}
.showcase-card-foot { margin-top: auto; font-size: 0.82rem; }
.showcase-archive { margin-top: 2rem; }
.showcase-archive summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.92rem;
  padding: 0.5rem 0;
}
.showcase-archive-body { margin-top: 1rem; }
.pilot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}
.pilot-quote {
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}
.pilot-tts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  margin-top: 0.75rem;
}
.pilot-tts-card {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
}
.pilot-tts-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.92rem;
}
.pilot-tts-card audio {
  width: 100%;
}
.pilot-tts-card.is-recommended {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(110, 181, 255, 0.25);
}
.pilot-rec-badge {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: rgba(110, 181, 255, 0.2);
  color: var(--accent);
  vertical-align: middle;
}
.pilot-emotion-rec {
  margin: 0.5rem 0 1rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  background: rgba(110, 181, 255, 0.08);
  border: 1px solid rgba(110, 181, 255, 0.18);
}
.pilot-emotion-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.pilot-emotion-table th,
.pilot-emotion-table td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.65rem;
  text-align: left;
  vertical-align: top;
}
.pilot-emotion-table th {
  background: rgba(0, 0, 0, 0.25);
  color: var(--muted);
}
.pilot-scene-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.pilot-scene-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  background: rgba(0, 0, 0, 0.15);
}
.pilot-scene-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}
.pilot-scene-card h4 {
  margin: 0.75rem 0 0.35rem;
  font-size: 0.92rem;
}
.pilot-scene-meta {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.pilot-variant-grid figure img {
  width: 100%;
  border-radius: 8px;
  display: block;
}
.pilot-variant-grid figcaption {
  margin-top: 0.35rem;
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}
.pilot-missing {
  aspect-ratio: 9 / 16;
  display: grid;
  place-items: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.2);
}
.pilot-media-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 0.75rem;
}
.pilot-media-block h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}
.pilot-media-block audio,
.pilot-media-block video {
  width: 100%;
}
.pilot-media-block video {
  max-height: 420px;
  background: #000;
  border-radius: 8px;
}
.pilot-download {
  margin: 0.45rem 0 0;
  font-size: 0.85rem;
}
.pilot-issues {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
}
.pilot-archive summary {
  cursor: pointer;
  font-weight: 600;
}
@media (max-width: 768px) {
  .showcase-strip-grid,
  .pilot-grid,
  .pilot-media-row { grid-template-columns: 1fr; }
}

/* Research markdown viewer (labs/research/view.html) */
.research-prose {
  padding: 1.5rem 1.75rem;
  max-width: 920px;
  margin: 0 auto 1rem;
}
.research-prose > :first-child { margin-top: 0; }
.research-prose h1 { font-size: 1.45rem; margin: 1.5rem 0 0.75rem; }
.research-prose h2 {
  font-size: 1.2rem;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}
.research-prose h3 { font-size: 1.05rem; margin: 1.35rem 0 0.5rem; }
.research-prose p,
.research-prose li { color: var(--text); }
.research-prose blockquote {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(88, 166, 255, 0.08);
  color: var(--muted);
  border-radius: 0 8px 8px 0;
}
.research-prose .table-wrap {
  overflow-x: auto;
  margin: 1rem 0 1.25rem;
  -webkit-overflow-scrolling: touch;
}
.research-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.research-prose table.research-gallery-table {
  table-layout: fixed;
  min-width: min(100%, 640px);
}
.research-prose th,
.research-prose td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.65rem;
  text-align: left;
  vertical-align: top;
  word-break: break-word;
}
.research-prose table.research-gallery-table td:has(img) {
  width: 38%;
  max-width: 280px;
}
.research-prose img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
  border-radius: 6px;
}
.research-prose td img,
.research-prose p img {
  display: block;
  max-width: min(240px, 100%);
  max-height: 320px;
  object-fit: contain;
  margin: 0.15rem 0;
}
.research-prose td img + img,
.research-prose p img + img {
  margin-top: 0.35rem;
}
.research-prose img.research-img-zoomable {
  cursor: zoom-in;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid var(--border);
}
.research-prose th {
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
}
.research-prose tr:nth-child(even) td { background: rgba(0, 0, 0, 0.12); }
.research-prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  background: var(--panel-2);
  padding: 0.12rem 0.35rem;
  border-radius: 4px;
}
.research-prose pre {
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
}
.research-prose pre code { background: none; padding: 0; }
.research-prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}
.research-prose ul,
.research-prose ol { padding-left: 1.35rem; }
.research-prose a { color: var(--accent); }
.research-foot {
  max-width: 920px;
  margin: 0 auto 2rem;
  font-size: 0.9rem;
}

/* Research hub tabs (image-gen skill family) */
.research-hub-nav {
  max-width: 920px;
  margin: 0 auto 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.research-hub-nav a {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.research-hub-nav a:hover {
  color: var(--text);
  border-color: var(--accent);
}
.research-hub-nav a[aria-current="page"] {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(88, 166, 255, 0.12);
}
.research-hub-nav + .research-hub-nav {
  margin-top: 0.15rem;
}
.catalog-ia {
  max-width: 920px;
  margin: 0 auto 1.5rem;
}
.catalog-ia h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}
.showcase-card .research-hub-nav,
.catalog-hub-links {
  max-width: none;
  margin: 0.35rem 0 0.75rem;
}

.research-hub-label {
  width: 100%;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.15rem;
}

/* Research image lightbox */
.research-lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 8, 16, 0.92);
  padding: 1.5rem;
}
.research-lightbox[hidden] {
  display: none !important;
}
body.research-lb-open {
  overflow: hidden;
}
.research-lb-stage {
  margin: 0;
  max-width: min(96vw, 1100px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.research-lb-img {
  max-width: 100%;
  max-height: calc(90vh - 2.5rem);
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.45);
}
.research-lb-cap {
  font-size: 0.85rem;
  text-align: center;
}
.research-lb-close,
.research-lb-nav {
  position: absolute;
  border: 1px solid var(--border);
  background: rgba(20, 26, 36, 0.85);
  color: var(--text);
  border-radius: 8px;
  cursor: pointer;
  line-height: 1;
}
.research-lb-close {
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1.5rem;
}
.research-lb-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 3rem;
  font-size: 1.75rem;
}
.research-lb-prev { left: 1rem; }
.research-lb-next { right: 1rem; }
.research-lb-close:hover,
.research-lb-nav:hover {
  border-color: var(--accent);
  color: var(--accent);
}