/* 动画样式 - 移动端优化 */

/* 基础淡入动画 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Section 淡入动画 */
.section-fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.section-fade-in.active {
  opacity: 1;
  transform: translateY(0);
}

/* 从左侧滑入 */
.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.slide-in-left.active {
  opacity: 1;
  transform: translateX(0);
}

/* 从右侧滑入 */
.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.slide-in-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* 从下方滑入 */
.slide-in-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.slide-in-up.active {
  opacity: 1;
  transform: translateY(0);
}

/* 缩放淡入 */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scale-in.active {
  opacity: 1;
  transform: scale(1);
}

/* 延迟动画 */
.delay-100 {
  transition-delay: 0.1s;
}

.delay-200 {
  transition-delay: 0.2s;
}

.delay-300 {
  transition-delay: 0.3s;
}

.delay-400 {
  transition-delay: 0.4s;
}

.delay-500 {
  transition-delay: 0.5s;
}

/* 移动端专用动画优化 */
@media (max-width: 768px) {
  /* 减少移动距离，提升性能 */
  .fade-in {
    transform: translateY(20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
  }

  .section-fade-in {
    transform: translateY(25px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .slide-in-left {
    transform: translateX(-30px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
  }

  .slide-in-right {
    transform: translateX(30px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
  }

  .slide-in-up {
    transform: translateY(30px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
  }

  .scale-in {
    transform: scale(0.95);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
  }

  /* 移动端减少延迟时间 */
  .delay-100 {
    transition-delay: 0.05s;
  }

  .delay-200 {
    transition-delay: 0.1s;
  }

  .delay-300 {
    transition-delay: 0.15s;
  }

  .delay-400 {
    transition-delay: 0.2s;
  }

  .delay-500 {
    transition-delay: 0.25s;
  }
}