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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #ff6b6b;
}

.logo a {
  color: inherit;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: nowrap;
}

.nav-link {
  text-decoration: none;
  color: #333;
  transition: color 0.3s;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: #ff6b6b;
}

.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero-title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.hero-desc {
  font-size: 1.1rem;
  opacity: 0.95;
  max-width: 800px;
  margin: 0 auto;
}

.video-section {
  padding: 3rem 0;
}

.section-title {
  font-size: 1.8rem;
  margin-bottom: 2rem;
  color: #2d3748;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.video-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.video-card__link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.video-cover {
  position: relative;
  padding-top: 56.25%;
  background: #f0f0f0;
  overflow: hidden;
}

.video-cover img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-info {
  padding: 1rem;
}

.video-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: #2d3748;
}

.video-one-line {
  font-size: 0.9rem;
  color: #718096;
  line-height: 1.5;
}

.page-header {
  padding: 2rem 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.page-desc {
  color: #718096;
}

.top-list__items {
  list-style: none;
}

.top-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: 8px;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.top-rank {
  font-size: 2rem;
  font-weight: bold;
  color: #ff6b6b;
  min-width: 50px;
  text-align: center;
}

.top-cover {
  width: 120px;
  flex-shrink: 0;
}

.top-cover img {
  width: 100%;
  border-radius: 4px;
}

.top-info {
  flex: 1;
}

.top-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.top-title a {
  color: #2d3748;
  text-decoration: none;
}

.top-title a:hover {
  color: #ff6b6b;
}

.top-meta {
  color: #718096;
  margin-bottom: 0.5rem;
}

.top-desc {
  color: #4a5568;
}

.video-player-section {
  background: #000;
  padding: 2rem 0;
}

.video-player {
  max-width: 1000px;
  margin: 0 auto;
}

.video-player-inner {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: #1a1a1a;
  border-radius: 8px;
  overflow: hidden;
}

.player-play-btn {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255, 107, 107, 0.9);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.player-play-btn:hover {
  background: rgba(255, 107, 107, 1);
  transform: translate(-50%, -50%) scale(1.1);
}

.player-play-icon {
  color: white;
  font-size: 2rem;
  display: block;
}

.detail-main {
  background: #f7fafc;
  padding-bottom: 3rem;
}

.detail-title {
  font-size: 2.5rem;
  margin: 2rem 0;
  color: #2d3748;
}

.detail-info,
.detail-module {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.detail-module h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #2d3748;
}

.info-list {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 0.5rem 1rem;
}

.info-list dt {
  font-weight: 600;
  color: #4a5568;
}

.info-list dd {
  color: #2d3748;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  padding: 0.3rem 0.8rem;
  background: #e6f7ff;
  color: #0050b3;
  border-radius: 4px;
  font-size: 0.9rem;
}

.site-footer {
  background: #2d3748;
  color: white;
  padding: 2rem 0;
  text-align: center;
}

@media (max-width: 768px) {
  .site-header .container {
    flex-direction: column;
    gap: 1rem;
  }

  .site-nav {
    gap: 0.8rem;
    font-size: 0.9rem;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .video-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .video-cover {
    padding-top: 50%;
  }

  .top-item {
    flex-direction: column;
  }

  .top-cover {
    width: 100%;
  }

  .detail-title {
    font-size: 1.8rem;
  }
}

.ui-style-0 body,
.ui-style-1 body {
  background: #000;
  color: #fff;
}

.ui-style-0 .site-header,
.ui-style-1 .site-header {
  background: #1a1a1a;
}

.ui-style-0 .nav-link,
.ui-style-1 .nav-link {
  color: #fff;
}

.ui-style-2 .hero-section {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.ui-style-3 .logo {
  color: #ff4757;
}

.ui-style-4 .video-card:hover {
  transform: translateY(-8px);
}

.ui-style-5 .hero-section,
.ui-style-6 .hero-section {
  background: linear-gradient(135deg, #4158D0 0%, #C850C0 100%);
}

.ui-style-7 .logo {
  color: #2196F3;
}

.ui-style-8 .logo {
  color: #4CAF50;
}

.ui-style-9 body {
  background: #0a0a0a;
}

.ui-style-10 .logo {
  color: #00C75A;
}

.ui-style-11 .logo {
  color: #0099FF;
}

.ui-style-12 .logo {
  color: #FF6700;
}

.ui-style-13 .logo {
  color: #00A1D6;
}

.ui-style-14 .site-header {
  background: #f8f9fa;
}