/* ============================================
   威海利华包装有限公司 - 动画样式
   设计理念：克制、自然、不喧宾夺主
   ============================================ */

/* 滚动显示动画 - 淡入 */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 交错动画 */
.stagger-animation > * {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-animation.visible > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-animation.visible > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-animation.visible > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-animation.visible > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-animation.visible > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-animation.visible > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-animation.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* 悬停效果 */
.hover-lift {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* 图片缩放效果 */
.img-zoom {
  overflow: hidden;
}

.img-zoom img {
  transition: transform 0.4s ease;
}

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