.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
h1 { font-size: 2rem; margin: 30px 0 20px; color: #222; }
h2 { font-size: 1.5rem; margin: 25px 0 15px; color: #333; border-left: 4px solid #d32f2f; padding-left: 12px; }
h3 { font-size: 1.2rem; margin: 15px 0 10px; color: #444; }
section { margin-bottom: 40px; background: #fff; padding: 25px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.08); }
.intro-section p { font-size: 1rem; line-height: 1.8; color: #555; text-indent: 2em; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.video-card { padding: 15px; background: #fafafa; border-radius: 6px; border: 1px solid #e0e0e0; transition: transform 0.3s, box-shadow 0.3s; }
.video-card:hover { transform: translateY(-5px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.video-card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.video-card h3 a { color: #d32f2f; text-decoration: none; }
.video-card h3 a:hover { text-decoration: underline; }
.video-card .meta { font-size: 0.85rem; color: #999; margin-bottom: 8px; }
.video-card .oneline { font-size: 0.9rem; color: #666; line-height: 1.5; }
.video-list { display: flex; flex-direction: column; gap: 12px; }
.video-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 15px; background: #fafafa; border-radius: 5px; border-left: 3px solid #d32f2f; transition: background 0.3s; }
.video-item:hover { background: #f0f0f0; }
.video-item a { color: #333; text-decoration: none; font-size: 1rem; flex: 1; }
.video-item a:hover { color: #d32f2f; }
.video-item .year, .video-item .meta, .video-item .date { font-size: 0.85rem; color: #999; margin-left: 15px; }
.video-item.ranked { position: relative; padding-left: 50px; }
.video-item .rank { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); width: 28px; height: 28px; background: #d32f2f; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.9rem; }
.link-group { display: flex; flex-wrap: wrap; gap: 15px; }
.link-btn { display: inline-block; padding: 12px 25px; background: #d32f2f; color: #fff; text-decoration: none; border-radius: 5px; transition: background 0.3s; font-size: 1rem; }
.link-btn:hover { background: #b71c1c; }
.group-section { margin-bottom: 30px; }
.group-title { font-size: 1.2rem; color: #d32f2f; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 2px solid #e0e0e0; }
.detail-info dl { display: grid; grid-template-columns: 120px 1fr; gap: 10px 20px; }
.detail-info dt { font-weight: bold; color: #666; }
.detail-info dd { color: #333; }
.detail-oneline p, .detail-summary p, .detail-review p { font-size: 1rem; line-height: 1.8; color: #555; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 15px; }
.related-card { padding: 12px; background: #fafafa; border-radius: 5px; border: 1px solid #e0e0e0; }
.related-card h4 { margin: 0 0 6px; font-size: 1rem; }
.related-card h4 a { color: #d32f2f; text-decoration: none; }
.related-card h4 a:hover { text-decoration: underline; }
.related-card .meta { font-size: 0.8rem; color: #999; margin-bottom: 6px; }
.related-card .oneline { font-size: 0.85rem; color: #666; line-height: 1.4; }
footer { background: #333; color: #fff; text-align: center; padding: 25px 20px; margin-top: 50px; }
footer p { margin: 0; font-size: 0.9rem; }
@media (max-width: 768px) {
  .container { padding: 15px; }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.2rem; }
  .video-grid { grid-template-columns: 1fr; }
  .detail-info dl { grid-template-columns: 80px 1fr; gap: 8px 10px; font-size: 0.9rem; }
}
body.ui-style-10 { /* UI风格标识 */ }