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

/* 自定义悬停效果 */
.hover-underline {
  position: relative;
  transition: all 0.3s ease;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: #000;
  transition: width 0.3s ease;
}

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

/* 图片悬停效果 */
.image-hover {
  transition: transform 0.3s ease, brightness 0.3s ease;
}

.image-hover:hover {
  transform: scale(1.05);
  brightness: 1.1;
}

/* 卡片悬停效果 */
.card-hover {
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

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

/* 淡入动画 */
.fade-in {
  animation: fadeIn 1s ease-in;
}

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

/* 滑入动画 */
.slide-in {
  animation: slideIn 1s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 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;
}