/* ============================================
   公子鱼科技 - 动画效果
   ============================================ */

/* ============================================
   入场动画
   ============================================ */

/* 淡入上移动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s var(--ease-out) forwards;
}

/* 淡入动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fadeIn {
  animation: fadeIn 0.5s var(--ease-out) forwards;
}

/* 缩放入场 */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-scaleIn {
  animation: scaleIn 0.5s var(--ease-out) forwards;
}

/* 从左滑入 */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-slideInLeft {
  animation: slideInLeft 0.6s var(--ease-out) forwards;
}

/* 从右滑入 */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-slideInRight {
  animation: slideInRight 0.6s var(--ease-out) forwards;
}

/* ============================================
   滚动触发动画
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* 延迟动画（用于依次入场） */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }

/* ============================================
   背景动画
   ============================================ */

/* 渐变流动动画 */
@keyframes gradientFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

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

/* 脉冲光晕 */
@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

.animate-pulse-glow {
  animation: pulseGlow 3s ease-in-out infinite;
}

/* 浮动动画 */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

/* 旋转 */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-spin {
  animation: spin 20s linear infinite;
}

/* 脉冲 */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

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

/* ============================================
   数字滚动动画
   ============================================ */
@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-count {
  animation: countUp 0.8s var(--ease-out) forwards;
}

/* ============================================
   装饰元素动画
   ============================================ */

/* 装饰圆点 */
.decorative-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-500);
  opacity: 0.3;
}

.decorative-dot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--primary-500);
  opacity: 0.5;
  animation: pulse 2s ease-in-out infinite;
}

/* 渐变光球 */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
}

.glow-orb-1 {
  width: 400px;
  height: 400px;
  background: var(--primary-500);
  top: -200px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.glow-orb-2 {
  width: 300px;
  height: 300px;
  background: var(--accent-purple);
  bottom: -150px;
  left: -100px;
  animation: float 10s ease-in-out infinite reverse;
}

/* 网格背景 */
.grid-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(0, 191, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 191, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* 线条动画 */
@keyframes lineGrow {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

.animate-line {
  transform-origin: left;
  animation: lineGrow 1s var(--ease-out) forwards;
}

/* ============================================
   悬停动画
   ============================================ */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-default),
              box-shadow var(--duration-normal) var(--ease-default);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.hover-glow {
  transition: box-shadow var(--duration-normal) var(--ease-default);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow-sm);
}

/* 图片缩放 */
.hover-zoom {
  overflow: hidden;
}

.hover-zoom img {
  transition: transform var(--duration-slow) var(--ease-default);
}

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

/* 链接下划线动画 */
.hover-underline {
  position: relative;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--duration-normal) var(--ease-default);
}

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

/* ============================================
   页面加载动画
   ============================================ */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s var(--ease-out), visibility 0.5s var(--ease-out);
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-light);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ============================================
   交错动画（用于列表项）
   ============================================ */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-children.active > *:nth-child(1) { animation: fadeInUp 0.5s var(--ease-out) 0.1s forwards; }
.stagger-children.active > *:nth-child(2) { animation: fadeInUp 0.5s var(--ease-out) 0.2s forwards; }
.stagger-children.active > *:nth-child(3) { animation: fadeInUp 0.5s var(--ease-out) 0.3s forwards; }
.stagger-children.active > *:nth-child(4) { animation: fadeInUp 0.5s var(--ease-out) 0.4s forwards; }
.stagger-children.active > *:nth-child(5) { animation: fadeInUp 0.5s var(--ease-out) 0.5s forwards; }
.stagger-children.active > *:nth-child(6) { animation: fadeInUp 0.5s var(--ease-out) 0.6s forwards; }

/* ============================================
   手风琴动画
   ============================================ */
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-default);
}

.accordion-item.active .accordion-content {
  max-height: 500px;
}

.accordion-icon {
  transition: transform var(--duration-normal) var(--ease-default);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}