/* Self-CriTeach Project Page Styles */

:root {
  --primary-color: #9a3412;
  --accent-color: #ea580c;
  --success-color: #f97316;
  --warning-color: #dd6b20;
  --bg-color: #ffffff;
  --bg-secondary: #f7fafc;
  --text-color: #2d3748;
  --text-light: #718096;
  --code-bg: #1e293b;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2rem; margin-top: 3rem; }
h3 { font-size: 1.5rem; margin-top: 2rem; }

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

/* Navigation */
nav {
  position: sticky;
  top: 0;
  background: var(--bg-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  z-index: 1000;
  padding: 1rem 0;
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  cursor: default;
  user-select: none;
}

/* Site switcher (top-left, reveals on hover) */
.site-switcher {
  position: relative;
}

.site-switcher .switcher-hint {
  font-size: 0.85rem;
  color: var(--text-light);
  transition: transform 0.2s ease, color 0.2s ease;
}

.site-switcher:hover .switcher-hint,
.site-switcher:focus-within .switcher-hint {
  color: var(--accent-color);
  transform: translateY(2px);
}

.site-switcher-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 240px;
  background: var(--bg-color);
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 1100;
}

.site-switcher:hover .site-switcher-menu,
.site-switcher:focus-within .site-switcher-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-switcher-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-light);
  padding: 0.4rem 0.75rem 0.3rem;
}

.site-switcher-menu a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0.55rem 0.75rem;
  border-radius: 6px;
  color: var(--text-color);
  text-decoration: none;
  transition: background 0.12s ease, color 0.12s ease;
}

.site-switcher-menu a:hover {
  background: var(--bg-secondary);
  color: var(--accent-color);
}

.site-switcher-menu a.active {
  background: rgba(49, 130, 206, 0.08);
  color: var(--accent-color);
}

.site-switcher-menu .site-name {
  font-weight: 600;
}

.site-switcher-menu .site-tag {
  font-size: 0.72rem;
  color: var(--text-light);
  font-weight: 500;
}

.site-switcher-menu a.active .site-tag {
  color: var(--accent-color);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  color: var(--text-color);
  font-weight: 500;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 0;
  background: linear-gradient(135deg, #fb923c 0%, #c2410c 100%);
  color: white;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: white;
}

.hero .subtitle {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  opacity: 0.95;
}

.hero .venue {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.5rem 1.5rem;
  border-radius: 25px;
  margin: 1rem 0;
  font-weight: 500;
}

.hero .authors {
  margin: 1.5rem 0;
  font-size: 1.1rem;
}

.hero .authors em {
  opacity: 0.9;
  font-size: 0.95rem;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-primary {
  background: white;
  color: var(--primary-color);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  text-decoration: none;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  text-decoration: none;
}

/* Sections */
section {
  padding: 4rem 0;
}

section:nth-child(even) {
  background: var(--bg-secondary);
}

/* Contribution Cards */
.contribution-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

.contribution-card {
  background: white;
  padding: 1.25rem 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.contribution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}

.contribution-card h3 {
  color: var(--primary-color);
  margin-top: 0;
  font-size: 1.05rem;
  line-height: 1.3;
}

.contribution-card p {
  font-size: 0.9rem;
  line-height: 1.55;
}

.contribution-card .icon {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
  display: block;
}

/* Variant: 3-card row (used on PDDL-LLM page) */
.contribution-grid.contribution-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Below medium screens: drop to fewer columns, then 1 column */
@media (max-width: 1100px) {
  .contribution-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .contribution-grid,
  .contribution-grid.contribution-grid-3 { grid-template-columns: 1fr; }
}

.contribution-card .metric {
  font-size: 2rem;
  font-weight: bold;
  color: var(--success-color);
  margin-top: 1rem;
}

/* Results Table */
.results-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.results-table th {
  background: var(--primary-color);
  color: white;
  padding: 1rem;
  text-align: left;
  font-weight: 600;
}

.results-table td {
  padding: 1rem;
  border-bottom: 1px solid #e2e8f0;
}

.results-table tr:last-child td {
  border-bottom: none;
}

.results-table tr:nth-child(even) {
  background: var(--bg-secondary);
}

.results-table .highlight {
  background: #d4edda;
  font-weight: 600;
}

.results-table .best {
  color: var(--success-color);
  font-weight: bold;
}

/* second-best value per column (academic convention: bold = best, underline = 2nd) */
.results-table .second {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Method Diagram */
.method-diagram {
  text-align: center;
  margin: 3rem 0;
}

.method-diagram img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Paper-style figure */
figure.figure {
  margin: 2.5rem auto;
  text-align: center;
}

figure.figure img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.1);
  background: #fff;
}

figure.figure figcaption {
  margin-top: 0.9rem;
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.55;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: justify;
}

figure.figure figcaption strong {
  color: var(--text-color);
}

figure.figure.figure-half img {
  max-width: 50%;
}

@media (max-width: 720px) {
  figure.figure.figure-half img { max-width: 100%; }
}

/* Demo section wrapper (slightly negative top margin so it hugs the hero) */
.demo-section {
  padding-top: 1.5rem !important;
  padding-bottom: 1rem !important;
}

/* Method 4-step list */
.method-steps {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  counter-reset: step-counter;
}

.method-steps li {
  counter-increment: step-counter;
  position: relative;
  padding: 1rem 1.25rem 1rem 3.5rem;
  margin-bottom: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  border-left: 4px solid var(--accent-color);
  font-size: 1.05rem;
  line-height: 1.6;
}

.method-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: var(--accent-color);
  color: white;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

.method-steps li strong {
  color: var(--primary-color);
  margin-right: 0.25rem;
}

/* Tables overflow on small screens */
.table-scroll {
  overflow-x: auto;
  margin: 0 -0.5rem 1.5rem;
  -webkit-overflow-scrolling: touch;
}

.table-scroll .results-table {
  min-width: 720px;
  font-size: 0.92rem;
}

.results-table th[rowspan],
.results-table th[colspan] {
  text-align: center;
  vertical-align: middle;
}

.result-takeaway {
  background: var(--bg-secondary);
  border-left: 4px solid var(--accent-color);
  padding: 0.9rem 1.1rem;
  margin: 1rem 0 2.5rem;
  font-size: 1rem;
  border-radius: 4px;
}

.result-takeaway strong {
  color: var(--accent-color);
}

/* Video grid (Real Robot) */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0 2rem;
}

.video-figure {
  margin: 0;
}

.video-figure video {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.12);
  background: #000;
  display: block;
}

.video-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.5;
  text-align: center;
}

.video-figure figcaption strong {
  color: var(--text-color);
}

.muted {
  color: var(--text-light);
  font-size: 0.85em;
}

/* Code Block */
pre {
  background: var(--code-bg);
  color: #f1f5f9;
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

code {
  font-family: 'Fira Code', 'Consolas', monospace;
  background: #f4f4f4;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

pre code {
  background: none;
  padding: 0;
}

/* Resource Grid */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.resource-card {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

.resource-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.resource-card h3 {
  margin-top: 0;
  color: var(--primary-color);
}

.resource-card .icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 1rem;
}

/* Citation Box */
.citation-box {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: 8px;
  border-left: 4px solid var(--accent-color);
  margin: 2rem 0;
  position: relative;
}

.citation-box pre {
  margin: 0;
  background: #ffffff;
  color: var(--text-color);
  border: 1px solid #e2e8f0;
  padding: 1.25rem;
  font-size: 0.92rem;
  line-height: 1.55;
}

.citation-box pre code {
  color: var(--text-color);
  background: transparent;
}

.copy-button {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
}

.copy-button:hover {
  background: var(--primary-color);
}

/* Team Section */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.team-member {
  text-align: center;
}

.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1rem;
}

.team-member h4 {
  margin: 0.5rem 0;
  color: var(--primary-color);
}

.team-member .affiliation {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* Footer */
footer {
  background: var(--primary-color);
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
}

footer a {
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero .subtitle {
    font-size: 1.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .contribution-grid,
  .resource-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* ---- RoboHarness additions ---- */
.pipeline {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.75rem;
  margin: 2rem 0 1rem;
}
.pipeline .stage {
  flex: 1 1 180px;
  background: var(--bg-secondary);
  border: 1px solid #e2e8f0;
  border-top: 4px solid var(--accent-color);
  border-radius: 10px;
  padding: 1.1rem 1rem;
  position: relative;
}
.pipeline .stage h4 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  color: var(--primary-color);
}
.pipeline .stage p { margin: 0; font-size: 0.9rem; color: var(--text-light); }
.pipeline .stage .icon { font-size: 1.4rem; display: block; margin-bottom: 0.4rem; }
.pipeline .arrow {
  align-self: center;
  color: var(--accent-color);
  font-size: 1.6rem;
  font-weight: 700;
}
@media (max-width: 720px) { .pipeline .arrow { transform: rotate(90deg); } }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.tool-card {
  background: var(--bg-color);
  border: 1px solid #e2e8f0;
  border-left: 4px solid var(--success-color);
  border-radius: 8px;
  padding: 1.2rem;
}
.tool-card h4 { margin: 0 0 0.4rem; color: var(--primary-color); }
.tool-card p { margin: 0; font-size: 0.92rem; color: var(--text-light); }

.demo-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem auto 0;
  max-width: 660px;
}
@media (max-width: 640px) {
  .demo-gallery { grid-template-columns: 1fr; }
}
.demo-gallery figure { margin: 0; }
.demo-gallery video {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  border-radius: 10px;
  background: #000;
  box-shadow: 0 4px 14px rgba(15,23,42,0.12);
}
.demo-gallery figcaption {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
}
.note {
  background: #fffaf0;
  border-left: 4px solid var(--warning-color);
  padding: 1rem 1.2rem;
  border-radius: 8px;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

/* two-column layout for the real-robot result tables */
.results-two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem 2rem;
  align-items: start;
}

/* =====================================================================
   Editorial article redesign (bilingual EN / 中文)
   ===================================================================== */
:root {
  --ink: #173b57;          /* deep navy — measured from the PDF title/callout */
  --ink-2: #294a64;        /* secondary navy — measured from the PDF subtitle */
  --paper: #ffffff;
  --paper-2: #f6f4f0;      /* warm off-white for section bands */
  --rule: #e6e2db;
}

/* Bilingual visibility: default English; hide the inactive language.
   Never set display on the *visible* one, so natural block/inline is kept. */
html:not(.zh) .l-zh { display: none !important; }
html.zh          .l-en { display: none !important; }

.cjk { font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei',
       'Noto Sans CJK SC', 'Noto Sans SC', sans-serif; }
html.zh body {
  font-family: 'Source Sans Pro', 'PingFang SC', 'Hiragino Sans GB',
               'Microsoft YaHei', 'Noto Sans CJK SC', 'Noto Sans SC', sans-serif;
}

/* ---- Top bar ---- */
.topbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.topbar .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 0.7rem; padding-bottom: 0.7rem; gap: 1rem;
}
.topbar .brand {
  font-family: 'Inter', sans-serif; font-weight: 800; font-size: 1.2rem;
  color: var(--primary-color); letter-spacing: -0.01em; white-space: nowrap;
}
.topbar nav { position: static; box-shadow: none; padding: 0; background: none; }
.topbar .navlinks {
  display: flex; gap: 1.35rem; list-style: none; flex-wrap: wrap;
  font-size: 0.9rem;
}
.topbar .navlinks a { color: var(--text-color); font-weight: 600; }
.topbar .navlinks a:hover { color: var(--accent-color); text-decoration: none; }
.topbar .bar-right { display: flex; align-items: center; gap: 0.9rem; }

/* Language toggle pill */
.lang-toggle {
  display: inline-flex; border: 1px solid var(--rule); border-radius: 999px;
  overflow: hidden; background: var(--paper-2);
}
.lang-toggle button {
  border: none; background: transparent; cursor: pointer;
  padding: 0.32rem 0.8rem; font-size: 0.82rem; font-weight: 700;
  color: var(--text-light); font-family: 'Inter', sans-serif;
}
.lang-toggle button.active { background: var(--accent-color); color: #fff; }

@media (max-width: 860px) {
  .topbar .navlinks { display: none; }
}

/* ---- Hero (editorial, matches the PDF: white page, navy title) ---- */
/* Use `section.hero-article` (specificity 0,1,1) so it beats the base
   `section:nth-child(even)` band rule and pure white actually applies. */
section.hero-article {
  background: #ffffff; color: var(--ink);
  padding: 3.6rem 0 2.8rem; text-align: center;
  border-bottom: 1px solid var(--rule);
}
.hero-article .kicker {
  text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.78rem;
  font-weight: 700; color: var(--accent-color); margin-bottom: 1rem;
}
.hero-article h1 {
  color: var(--ink); font-size: 2.7rem; line-height: 1.18; margin: 0 auto 0.6rem;
  max-width: 900px;
}
.hero-article .sub {
  font-size: 1.35rem; font-weight: 600; color: #3a6299; margin: 0 auto 1.3rem;
  max-width: 820px;
}
.hero-article .lede {
  font-size: 1.06rem; line-height: 1.75; color: #55606b;
  max-width: 720px; margin: 0 auto 1.6rem;
}
.hero-article .authors { font-size: 1rem; margin: 1.2rem auto 0.3rem; max-width: 820px; color: #55606b; }
.hero-article .authors em { color: #8793a0; font-size: 0.9rem; }

/* Hero buttons: solid navy on the white hero (the old white-outline style
   was for the orange gradient and is invisible on white). */
.hero-article .hero-buttons .btn {
  background: var(--ink); color: #fff; border: none;
}
.hero-article .hero-buttons .btn:hover {
  background: var(--ink-2); color: #fff;
  transform: translateY(-2px); box-shadow: 0 4px 12px rgba(15,23,42,0.2);
}

/* ---- Article body ---- */
.article .container { max-width: 880px; }
.article section { padding: 3rem 0; }
.article section:nth-child(even) { background: var(--paper-2); }

.article h2 {
  font-size: 1.85rem; color: var(--ink); margin-top: 0; line-height: 1.25;
  position: relative; padding-bottom: 0.6rem; margin-bottom: 1.3rem;
}
.article h2::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 56px; height: 4px; border-radius: 2px; background: var(--accent-color);
}
.article h3 { color: var(--ink-2); font-size: 1.3rem; }
.article p {
  font-size: 1.075rem; line-height: 1.85; margin-bottom: 1.15rem;
  color: #33404f;
}
.article strong { color: var(--ink); }

/* ---- Callout banners ---- */
.callout {
  background: var(--ink); color: #fff; border-left: 6px solid var(--accent-color);
  padding: 1.6rem 2rem; margin: 2.2rem auto; border-radius: 6px;
  text-align: center; font-size: 1.3rem; font-weight: 700; line-height: 1.5;
  max-width: 880px;
}
.callout.light {
  background: #eef3f8; color: var(--ink); border-left-color: var(--ink-2);
  font-size: 1.12rem; font-weight: 600; text-align: left;
}
.callout .q { color: var(--accent-color); }
/* strong inside a callout must follow the banner's text color, not the
   global .article strong navy (which is invisible on the navy banner). */
.callout strong { color: inherit; }

/* ---- Capability table ---- */
.cap-table { width: 100%; border-collapse: collapse; margin: 1.8rem 0 0.5rem; }
.cap-table th {
  text-align: left; padding: 0.9rem 1rem; background: #eef3f8;
  color: var(--ink); font-family: 'Inter', sans-serif; font-weight: 700;
  width: 120px; vertical-align: top; border-bottom: 1px solid var(--rule);
  font-size: 1.02rem;
}
.cap-table td {
  padding: 0.9rem 1rem; border-bottom: 1px solid var(--rule);
  font-size: 1rem; line-height: 1.6; color: #33404f;
}
.cap-table tr:last-child th, .cap-table tr:last-child td { border-bottom: none; }

/* figure captions get a label tint */
.article figure.figure figcaption { text-align: center; }
.fig-num { color: var(--accent-color); font-weight: 700; }
.table-cap {
  text-align: center; font-weight: 700; color: var(--ink);
  margin: 1.6rem 0 0.4rem; font-size: 1rem;
}
.table-cap .fig-num { color: var(--accent-color); }

/* ---- Paper info block ---- */
.paper-info {
  border: 1px solid var(--rule); border-radius: 12px; padding: 1.6rem 1.8rem;
  background: #fff; margin-top: 1.5rem;
}
.paper-info h3 { margin-top: 0; color: var(--ink); }
.paper-info .title { font-size: 1.1rem; font-weight: 700; color: var(--ink); margin-bottom: 0.5rem; }
.paper-info .links { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-top: 1rem; }

.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: var(--ink-2); color: #fff; transform: translateY(-2px); text-decoration: none; }

@media (max-width: 768px) {
  .hero-article h1 { font-size: 1.9rem; }
  .hero-article .sub { font-size: 1.1rem; }
  .callout { font-size: 1.08rem; padding: 1.3rem 1.3rem; }
  .cap-table th { width: auto; }
}