body {
  margin: 0;
  font-family: "Noto Sans", Arial, sans-serif;
  color: #1f2937;
  background: #ffffff;
  line-height: 1.6;
}

.container {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
}

.center {
  text-align: center;
}

.hero {
  padding: 56px 0 36px;
  border-bottom: 1px solid #e5e7eb;
}

.hero .container {
  width: min(1280px, calc(100% - 32px));
}

.title {
  margin: 0;
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.2;
  font-weight: 700;
}

.title-highlight {
  color: #1d4ed8;
}

.title-icon {
  width: auto;
  height: 1em;
  margin: 0 0.2em 0 0;
  vertical-align: -0.1em;
  display: inline-block;
}

.subtitle {
  margin: 14px 0 4px;
  font-size: 1.2rem;
  color: #374151;
}

.authors-container {
  margin: 20px 0;
  text-align: center;
}

.author-names {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: 1.25rem;
  color: #1d4ed8;
  margin-bottom: 8px;
  line-height: 1.6;
}

.author {
  display: inline-block;
  white-space: nowrap;
  margin: 0 4px;
}

.author-block {
  display: inline-block;
  white-space: nowrap;
}

.author-affiliations {
  font-size: 1.1rem;
  color: #4b5563;
  margin-bottom: 8px;
}

.author-notes {
  font-size: 0.95rem;
  color: #6b7280;
  font-style: normal;
  margin-top: 12px;
}

.links {
  margin-top: 18px;
}

.links .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 6px 4px;
  padding: 8px 18px;
  border-radius: 999px;
  background-color: #363636;
  color: #ffffff;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  border: none;
  transition: background-color 0.2s ease;
}

.links .btn:hover {
  background-color: #4a4a4a;
  color: #ffffff;
}

.links .btn i {
  margin-right: 8px;
  font-size: 1.2em;
}

.section {
  padding: 34px 0;
}

h2 {
  margin: 0 0 12px;
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: 1.6rem;
}

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

.bibtex-header h2 {
  margin: 0;
}

.copy-bibtex-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid #d1d5db;
  border-radius: 999px;
  background: #ffffff;
  color: #374151;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.copy-bibtex-btn:hover {
  background: #f3f4f6;
  border-color: #9ca3af;
}

.copy-bibtex-btn.copied {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
}

.copy-bibtex-btn.copy-failed {
  background: #fef2f2;
  border-color: #fca5a5;
  color: #b91c1c;
}

.subtitle-section {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: 1.3rem;
  color: #374151;
  margin: 24px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e5e7eb;
}

img {
  width: 100%;
  height: auto;
  margin: 10px 0 14px;
  border: 0;
  border-radius: 0;
}

p {
  margin: 0;
  text-align: justify;
}

pre {
  margin: 0;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  overflow-x: auto;
}

code {
  font-family: "Courier New", monospace;
  font-size: 0.88rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
  margin-bottom: 24px;
}

.video-card {
  background: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border: 1px solid #e5e7eb;
  transition: transform 0.2s;
}

.video-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.video-card video {
  width: 100%;
  display: block;
  background: #000;
}

.video-caption {
  padding: 16px;
  text-align: center;
  font-size: 0.95rem;
  color: #4b5563;
  border-top: 1px solid #f3f4f6;
  margin: 0;
}

@media (max-width: 768px) {
  .video-grid {
    grid-template-columns: 1fr;
  }

  .bibtex-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

.sim-video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
  margin-bottom: 24px;
}

@media (max-width: 1024px) {
  .sim-video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .sim-video-grid {
    grid-template-columns: 1fr;
  }
}

.abstract-content {
  margin-top: 24px;
}

.highlight-item {
  margin-bottom: 12px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.highlight-item b {
  color: #1d4ed8;
}

.highlight-item i b,
.highlight-item b i {
  color: inherit;
  font-weight: 800;
  text-shadow: 0 0 0.5px currentColor;
}

.footer {
  border-top: 1px solid #e5e7eb;
  padding: 20px 0 30px;
  color: #6b7280;
}