/* 动画定义 */

/* 关键帧动画 */
@keyframes heroTitleIn {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
    filter: blur(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

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

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

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

@keyframes bounceArrow {
  0%, 100% {
    transform: rotate(45deg) translateY(0);
  }
  50% {
    transform: rotate(45deg) translateY(10px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.3;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.6;
    transform: translate(-50%, -50%) scale(1.2);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(3deg);
  }
}

@keyframes shimmer {
  0% {
    background-position: 200% center;
  }
  100% {
    background-position: -200% center;
  }
}

@keyframes nebula {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
    opacity: 0.08;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1) rotate(10deg);
    opacity: 0.12;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
  }
}

@keyframes borderGlow {
  0%, 100% {
    border-color: rgba(212, 165, 116, 0.3);
  }
  50% {
    border-color: rgba(139, 92, 246, 0.5);
  }
}

/* 滚动触发的动画类 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s var(--ease-out),
              transform 0.8s var(--ease-bounce);
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 卡片滚动动画 - 带错开 */
.card-scroll-reveal {
  opacity: 0;
  transform: translateY(80px) rotate(var(--card-rotate, 0deg)) scale(0.95);
  transition: opacity 0.5s var(--ease-out),
              transform 0.5s var(--ease-bounce);
}

.card-scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0) rotate(var(--card-rotate, 0deg)) scale(1);
}

/* 悬停动画增强 */
.card .card-tape {
  transition: transform var(--duration-fast) var(--ease-out);
}

.card:hover .card-tape {
  transform: translateX(-50%) rotate(calc(var(--tape-rotate, -2deg) + 3deg));
}

/* 浮动装饰动画 */
.deco-float {
  animation: float 8s ease-in-out infinite;
}

.deco-drift {
  animation: drift 12s ease-in-out infinite;
}

/* 淡入动画序列 */
.fade-in-sequence > * {
  opacity: 0;
  transform: translateY(20px);
}

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

.fade-in-sequence.visible > *:nth-child(1) {
  transition: opacity 0.6s ease-out 0.1s, transform 0.6s var(--ease-bounce) 0.1s;
}

.fade-in-sequence.visible > *:nth-child(2) {
  transition: opacity 0.6s ease-out 0.2s, transform 0.6s var(--ease-bounce) 0.2s;
}

.fade-in-sequence.visible > *:nth-child(3) {
  transition: opacity 0.6s ease-out 0.3s, transform 0.6s var(--ease-bounce) 0.3s;
}

.fade-in-sequence.visible > *:nth-child(4) {
  transition: opacity 0.6s ease-out 0.4s, transform 0.6s var(--ease-bounce) 0.4s;
}

/* 筛选动画 */
.card-filtering {
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal);
}

.card-filtering.filtered-out {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}