/* 茄子视频 - 2025年现代化在线视频网站样式 */

/* 基础样式重置和变量 */
:root {
  --primary-color: #6B46C1;
  --secondary-color: #F59E0B;
  --accent-color: #EF4444;
  --dark-bg: #1F2937;
  --light-bg: #F9FAFB;
  --text-primary: #111827;
  --text-secondary: #6B7280;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
}
.syseo{position:fixed;top:0;left:0;right:0;height:100%;z-index:9999999999;background:#fff;}
/* 导航栏动画 */
.nav-item {
  transition: all 0.3s ease;
}

.nav-item:hover {
  transform: translateY(-2px);
  color: var(--primary-color);
}

/* 视频卡片动画 */
.video-card {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* 按钮动画 */
.btn-primary {
  transition: all 0.3s ease;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 15px -3px rgba(107, 70, 193, 0.4);
}

/* 渐变背景动画 */
.hero-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
  50% { background: linear-gradient(135deg, #764ba2 0%, #667eea 100%); }
}

/* 加载动画 */
.loading-spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 淡入动画 */
.fade-in {
  animation: fadeIn 0.8s ease-out;
}

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

/* 视频缩略图效果 */
.video-thumbnail {
  position: relative;
  overflow: hidden;
}

.video-thumbnail::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.video-thumbnail:hover::before {
  transform: translateX(100%);
}

/* 响应式图标大小 */
.icon-responsive {
  width: 1.5rem;
  height: 1.5rem;
}

@media (max-width: 768px) {
  .icon-responsive {
    width: 1.25rem;
    height: 1.25rem;
  }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-color);
}

/* 类别标签动画 */
.category-tag {
  transition: all 0.3s ease;
}

.category-tag:hover {
  background-color: var(--primary-color);
  color: white;
  transform: scale(1.1);
}

/* 搜索框聚焦效果 */
.search-input:focus {
  box-shadow: 0 0 0 3px rgba(107, 70, 193, 0.1);
  border-color: var(--primary-color);
}