/**
 * HSI Group Animation System
 * 动画效果系统 - 页面入场、滚动触发、悬停效果、背景动画
 */

/* ========================================
   Keyframe Animations - 关键帧定义
======================================== */

/* 淡入上移 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 淡入下移 */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 淡入左移 */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 淡入右移 */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* 模糊淡入 */
@keyframes blurIn {
  from {
    opacity: 0;
    filter: blur(10px);
  }
  to {
    opacity: 1;
    filter: blur(0);
  }
}

/* 弹性进入 */
@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* 脉冲 */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

/* 旋转闪光 */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

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

/* 光晕扩散 */
@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.5), 0 0 60px rgba(14, 165, 233, 0.3);
  }
}

/* 数字计数 */
@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 线条绘制 */
@keyframes drawLine {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

/* 打字机效果 */
@keyframes typewriter {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

/* 背景粒子浮动 */
@keyframes particleFloat {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(10px, -10px) rotate(90deg);
  }
  50% {
    transform: translate(0, -20px) rotate(180deg);
  }
  75% {
    transform: translate(-10px, -10px) rotate(270deg);
  }
}

/* 波浪效果 */
@keyframes wave {
  0% {
    transform: translateX(0) translateZ(0) scaleY(1);
  }
  50% {
    transform: translateX(-25%) translateZ(0) scaleY(0.55);
  }
  100% {
    transform: translateX(-50%) translateZ(0) scaleY(1);
  }
}

/* 光线扫描 */
@keyframes scanLine {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* ========================================
   Animation Classes - 动画类
======================================== */

/* 基础过渡 */
.transition-all {
  transition: all var(--transition-base);
}

.transition-transform {
  transition: transform var(--transition-base);
}

.transition-opacity {
  transition: opacity var(--transition-base);
}

/* 延迟类 - 用于交错动画 */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }
.delay-600 { animation-delay: 600ms; }
.delay-700 { animation-delay: 700ms; }
.delay-800 { animation-delay: 800ms; }

/* 入场动画类 */
.animate-fade-in-up {
  animation: fadeInUp 0.8s var(--ease-out) forwards;
  opacity: 0;
}

.animate-fade-in-down {
  animation: fadeInDown 0.8s var(--ease-out) forwards;
  opacity: 0;
}

.animate-fade-in-left {
  animation: fadeInLeft 0.8s var(--ease-out) forwards;
  opacity: 0;
}

.animate-fade-in-right {
  animation: fadeInRight 0.8s var(--ease-out) forwards;
  opacity: 0;
}

.animate-scale-in {
  animation: scaleIn 0.6s var(--ease-out) forwards;
  opacity: 0;
}

.animate-blur-in {
  animation: blurIn 0.8s var(--ease-out) forwards;
  opacity: 0;
}

.animate-bounce-in {
  animation: bounceIn 0.8s var(--ease-spring) forwards;
  opacity: 0;
}

/* 循环动画 */
.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

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

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

/* ========================================
   Scroll-triggered Animations - 滚动触发
======================================== */

/* 初始状态 - 等待进入视口 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s var(--ease-out);
}

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

/* 从左侧进入 */
.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s var(--ease-out);
}

.scroll-reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* 从右侧进入 */
.scroll-reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s var(--ease-out);
}

.scroll-reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* 缩放进入 */
.scroll-reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s var(--ease-out);
}

.scroll-reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* 旋转进入 */
.scroll-reveal-rotate {
  opacity: 0;
  transform: rotate(-5deg) translateY(30px);
  transition: all 0.8s var(--ease-out);
}

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

/* 交错子元素动画 */
.stagger-children > * {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s var(--ease-out);
}

.stagger-children.revealed > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(2) { transition-delay: 100ms; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(3) { transition-delay: 200ms; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(4) { transition-delay: 300ms; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(5) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(6) { transition-delay: 500ms; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(7) { transition-delay: 600ms; opacity: 1; transform: translateY(0); }
.stagger-children.revealed > *:nth-child(8) { transition-delay: 700ms; opacity: 1; transform: translateY(0); }

/* ========================================
   Hover Effects - 悬停效果
======================================== */

/* 按钮悬停 - 发光效果 */
.hover-glow {
  transition: all var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.4);
  transform: translateY(-2px);
}

/* 卡片悬停 - 上浮效果 */
.hover-lift {
  transition: all var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* 图片悬停 - 放大效果 */
.hover-scale {
  transition: transform var(--transition-base);
  overflow: hidden;
}

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

.hover-scale-img {
  overflow: hidden;
}

.hover-scale-img img {
  transition: transform var(--transition-slow);
}

.hover-scale-img:hover img {
  transform: scale(1.1);
}

/* 边框渐变悬停 */
.hover-border-gradient {
  position: relative;
  background: var(--color-white);
  transition: all var(--transition-base);
}

.hover-border-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 2px;
  background: var(--gradient-primary);
  border-radius: inherit;
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.hover-border-gradient:hover::before {
  opacity: 1;
}

/* 文字悬停 - 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(--transition-base);
}

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

/* 图标旋转悬停 */
.hover-rotate {
  transition: transform var(--transition-base);
}

.hover-rotate:hover {
  transform: rotate(15deg);
}

/* 闪光扫描效果 */
.hover-shine {
  position: relative;
  overflow: hidden;
}

.hover-shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s ease;
}

.hover-shine:hover::before {
  left: 100%;
}

/* 背景色变化 */
.hover-bg-shift {
  background-size: 200% 200%;
  background-position: left center;
  transition: background-position var(--transition-slow);
}

.hover-bg-shift:hover {
  background-position: right center;
}

/* ========================================
   Special Effects - 特殊效果
======================================== */

/* 渐变动画背景 */
.animated-gradient {
  background: linear-gradient(
    -45deg, 
    var(--color-primary-900), 
    var(--color-brand-600), 
    var(--color-secondary-500, #0284C7), 
    var(--color-accent-500)
  );
  background-size: 400% 400%;
  animation: gradientMove 15s ease infinite;
}

/* 玻璃拟态 */
.glassmorphism {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* 霓虹发光文字 */
.neon-text {
  text-shadow: 
    0 0 10px rgba(37, 99, 235, 0.5),
    0 0 20px rgba(37, 99, 235, 0.3),
    0 0 40px rgba(37, 99, 235, 0.2);
}

/* 粒子背景容器 */
.particles-bg {
  position: relative;
  overflow: hidden;
}

.particles-bg::before,
.particles-bg::after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: particleFloat 20s ease-in-out infinite;
}

.particles-bg::before {
  background: var(--color-brand-500);
  top: -100px;
  left: -100px;
}

.particles-bg::after {
  background: var(--color-secondary-500, #0284C7);
  bottom: -100px;
  right: -100px;
  animation-delay: -10s;
}

/* 数据流动效果 */
.data-flow {
  position: relative;
  overflow: hidden;
}

.data-flow::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(37, 99, 235, 0.1),
    transparent
  );
  animation: scanLine 3s ease-in-out infinite;
}

/* 打字光标 */
.typing-cursor::after {
  content: '|';
  animation: pulse 1s ease-in-out infinite;
  margin-left: 2px;
  color: var(--color-brand-500);
}

/* 数字增长效果容器 */
.counter-number {
  display: inline-block;
  font-variant-numeric: tabular-nums; /* 等宽数字，防止布局抖动 */
}

/* 分隔线动画 */
.animated-divider {
  height: 2px;
  background: var(--gradient-primary);
  width: 0;
  animation: drawLine 1s var(--ease-out) forwards;
}

/* 卡片进入特效 */
.card-entrance {
  opacity: 0;
  transform: perspective(1000px) rotateX(10deg) translateY(30px);
  transition: all 0.8s var(--ease-out);
}

.card-entrance.visible {
  opacity: 1;
  transform: perspective(1000px) rotateX(0) translateY(0);
}

/* ========================================
   Loading States - 加载状态
======================================== */

/* 骨架屏闪光 */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 25%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* 加载旋转 */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-brand-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 脉冲点 */
.loading-dots {
  display: flex;
  gap: 8px;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  background: var(--color-brand-500);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

/* ========================================
   Page Transition - 页面过渡
======================================== */

/* 页面淡入 */
.page-enter {
  opacity: 0;
}

.page-enter-active {
  opacity: 1;
  transition: opacity 0.5s ease;
}

/* Hero 区域进入动画 - 样式已移至 index.css */

/* ========================================
   Responsive Adjustments - 响应式调整
======================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-reveal,
  .scroll-reveal-left,
  .scroll-reveal-right,
  .scroll-reveal-scale {
    opacity: 1;
    transform: none;
  }
}