/* 自定义动画和过渡效果 */
.fade-in {
  animation: fadeIn 0.8s ease-in-out;
}

.fade-in-up {
  animation: fadeInUp 0.8s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 图片悬停放大效果 */
.image-hover-zoom {
  overflow: hidden;
  transition: transform 0.5s ease;
}

.image-hover-zoom img {
  transition: transform 0.5s ease;
}

.image-hover-zoom:hover img {
  transform: scale(1.05);
}

/* 平滑滚动 */
html {
  scroll-behavior: smooth;
}

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

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

::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* 文字悬停效果 */
.text-hover-underline {
  position: relative;
  transition: color 0.3s ease;
}

.text-hover-underline::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: #000;
  transition: width 0.3s ease;
}

.text-hover-underline:hover::after {
  width: 100;
}

/* 全屏轮播渐变遮罩 */
.hero-overlay {
  background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,0.3) 100%);
}

/* 网格布局动画 */
.grid-item {
  transition: all 0.3s ease;
}

.grid-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 响应式隐藏类 */
@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }
}

/* 加载动画 */
.loading-spinner {
  border: 3px solid #f3f3f3;
  border-top: 3px solid #333;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}