.performance-page-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 16px 64px;
}

.contest-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  color: #6d6d6d;
  font-size: 14px;
}

.contest-breadcrumb li:not(:last-child)::after {
  content: ">";
  margin-left: 8px;
  color: #a0a0a0;
}

.contest-breadcrumb a {
  color: #4e4e4e;
  text-decoration: none;
}

.performance-watch-page {
  background: #fff;
}

.performance-header {
  margin-bottom: 18px;
}

.performance-brand {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  margin-bottom: 10px;
}

.performance-logo {
  width: 24px;
  height: auto;
  flex: 0 0 auto;
}

.series-tag {
  margin: 0;
  color: #7b5d35;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.entry-title {
  margin: 0;
  line-height: 1.35;
  font-size: clamp(28px, 4vw, 42px);
  color: #1f1f1f;
}

.video-primary-stage {
  margin-bottom: 28px;
  padding: 20px;
  border-radius: 24px;
  background: linear-gradient(180deg, #2a2a2a 0%, #111 100%);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.video-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 16px;
  background: #000;
}

.video-wrapper iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.performance-content-grid {
  display: grid;
  gap: 24px;
}

.performance-intro {
  font-size: 17px;
  line-height: 1.9;
  color: #2c2c2c;
}

.performance-intro p {
  margin: 0;
}

.performance-summary,
.piece-info,
.related-block,
.guide-card {
  padding: 24px;
  border: 1px solid #e8dfd3;
  border-radius: 20px;
  background: #fffdf9;
}

.performance-summary-layout {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.meta-table {
  width: 100%;
  border-collapse: collapse;
}

.meta-table th,
.meta-table td {
  padding: 12px 0;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid #ece5db;
  font-size: 15px;
  line-height: 1.7;
}

.meta-table tr:last-child th,
.meta-table tr:last-child td {
  border-bottom: 0;
}

.meta-table th {
  width: 92px;
  color: #5b4a34;
  font-weight: 700;
  padding-right: 16px;
}

.performance-artwork-card {
  width: 200px;
  min-width: 200px;
  height: 200px;
  padding: 12px;
  border: 1px solid #e7e2d8;
  border-radius: 16px;
  background: #fbfbf8;
  display: flex;
  align-items: center;
  justify-content: center;
}

.performance-artwork-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.piece-info {
  background: #f8f5ef;
}

.piece-info h2,
.related-block h3,
.guide-card h2 {
  margin: 0 0 12px;
  color: #1f1f1f;
  line-height: 1.45;
}

.piece-desc {
  color: #313131;
  line-height: 1.9;
  font-size: 15px;
}

.performance-footer-nav {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.related-links-list {
  display: grid;
  gap: 10px;
}

.related-link-item {
  display: block;
  padding: 14px 16px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #eadfce;
  color: #242424;
  text-decoration: none;
  line-height: 1.7;
}

.related-link-item:hover {
  border-color: #c9aa76;
  background: #fffaf0;
}

.related-link-item strong {
  display: block;
  margin-bottom: 4px;
}

.related-link-item span {
  display: block;
  color: #646464;
  font-size: 14px;
}

.back-to-index {
  text-align: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  background: #6f5432;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.btn:hover {
  background: #5f472a;
}

.btn-secondary {
  background: #fff;
  color: #5b4a34;
  border: 1px solid #d7c4a7;
}

.btn-secondary:hover {
  background: #fbf6ec;
}

.contest-bottom-guide {
  display: grid;
  gap: 18px;
  margin-top: 40px;
}

.guide-card--muted {
  background: #fcfbf8;
}

.guide-card p {
  margin: 0;
  color: #404040;
  line-height: 1.85;
}

.guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.product-logo-image {
  display: block;
  background: #ffffff;
  border-radius: 16px;
  padding: 12px;
  box-sizing: border-box;
}

@media (max-width: 767px) {
  .performance-page-shell {
    padding: 16px 12px 48px;
  }

  .video-primary-stage,
  .performance-summary,
  .piece-info,
  .related-block,
  .guide-card {
    padding: 16px;
    border-radius: 16px;
  }

  .entry-title {
    font-size: 26px;
  }

  .performance-brand {
    gap: 10px;
    margin-bottom: 8px;
  }

  .performance-logo {
    width: 20px;
  }

  .meta-table th,
  .meta-table td {
    display: block;
    width: auto;
    padding: 8px 0;
  }

  .meta-table th {
    padding-bottom: 2px;
    border-bottom: 0;
  }

  .meta-table td {
    padding-top: 0;
  }

  .performance-summary-layout {
    flex-direction: column;
    gap: 16px;
  }

  .performance-artwork-card {
    width: 100%;
    min-width: 0;
    max-width: 200px;
    height: 200px;
  }
}