/* 渐入动画 */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* 渐入上移动画 */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 渐入下移动画 */
@keyframes fade-in-down {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 缩放动画 */
@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 应用动画类 */
.animate-fade-in {
  animation: fade-in 0.6s ease-out forwards;
}

.animate-fade-in-up {
  animation: fade-in-up 0.6s ease-out forwards;
  opacity: 0;
}

.animate-fade-in-down {
  animation: fade-in-down 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scale-in 0.6s ease-out forwards;
}

/* 发光脉冲效果 */
@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
  }
}

.animate-glow-pulse {
  animation: glow-pulse 2s ease-in-out infinite;
}

/* 渐变背景动画 */
@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.animate-gradient {
  background-size: 200% 200%;
  animation: gradient-shift 8s ease infinite;
}

/* 悬浮动画 */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* 旋转发光效果 */
@keyframes rotate-glow {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-rotate-glow {
  animation: rotate-glow 10s linear infinite;
}