/* 
 * 启宇科技官方网站 - 动画样式文件
 * Author: 启宇科技开发团队
 * Description: 定义网站的动画效果、过渡和关键帧动画
 */

/* ========== 基础动画工具类 ========== */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.8s ease forwards;
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}

.fade-in-down {
  opacity: 0;
  transform: translateY(-30px);
  animation: fadeInDown 0.8s ease forwards;
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  animation: fadeInLeft 0.8s ease forwards;
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  animation: fadeInRight 0.8s ease forwards;
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  animation: scaleIn 0.6s ease forwards;
}

.bounce-in {
  opacity: 0;
  transform: scale(0.3);
  animation: bounceIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

/* ========== 关键帧动画定义 ========== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

/* ========== 打字机效果 ========== */
.typewriter {
  overflow: hidden;
  border-right: 2px solid #fff;
  white-space: nowrap;
  margin: 0 auto;
  letter-spacing: 0.15em;
  animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink-caret {
  from, to {
    border-color: transparent;
  }
  50% {
    border-color: #fff;
  }
}

/* ========== 悬停动画效果 ========== */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.hover-scale {
  transition: transform 0.3s ease;
}

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

.hover-rotate {
  transition: transform 0.3s ease;
}

.hover-rotate:hover {
  transform: rotate(5deg);
}

.hover-glow {
  transition: box-shadow 0.3s ease;
}

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

/* ========== 脉冲动画 ========== */
.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

/* ========== 摇摆动画 ========== */
.swing {
  animation: swing 1s ease-in-out infinite alternate;
}

@keyframes swing {
  0% {
    transform: rotate(3deg);
  }
  100% {
    transform: rotate(-3deg);
  }
}

/* ========== 弹跳动画 ========== */
.bounce {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

/* ========== 闪烁动画 ========== */
.flash {
  animation: flash 1.5s infinite;
}

@keyframes flash {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0;
  }
}

/* ========== 旋转动画 ========== */
.rotate {
  animation: rotate 2s linear infinite;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

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

.rotate-reverse {
  animation: rotate 2s linear infinite reverse;
}

/* ========== 滑动进入动画 ========== */
.slide-in-left {
  animation: slideInLeft 0.8s ease forwards;
}

.slide-in-right {
  animation: slideInRight 0.8s ease forwards;
}

.slide-in-top {
  animation: slideInTop 0.8s ease forwards;
}

.slide-in-bottom {
  animation: slideInBottom 0.8s ease forwards;
}

@keyframes slideInLeft {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInTop {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInBottom {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ========== 特殊效果动画 ========== */

/* 波纹效果 */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.ripple:hover::before {
  width: 300px;
  height: 300px;
}

/* 渐变移动背景 */
.gradient-move {
  background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #f5576c);
  background-size: 400% 400%;
  animation: gradientMove 15s ease infinite;
}

@keyframes gradientMove {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* 文字闪光效果 */
.text-shine {
  background: linear-gradient(120deg, transparent 40%, rgba(255, 255, 255, 0.8) 50%, transparent 60%);
  background-size: 200% 100%;
  animation: textShine 3s infinite;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* 数字递增动画 */
.count-up {
  opacity: 0;
  transform: translateY(20px);
}

.count-up.counting {
  opacity: 1;
  transform: translateY(0);
  transition: all 0.5s ease;
}

/* 3D翻转卡片 */
.flip-card {
  background-color: transparent;
  perspective: 1000px;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: 16px;
}

.flip-card-back {
  transform: rotateY(180deg);
}

/* 粒子动画背景 */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  animation: particleFloat 20s linear infinite;
}

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

/* ========== 延迟动画类 ========== */
.delay-100 {
  animation-delay: 0.1s;
}

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

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

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

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

.delay-600 {
  animation-delay: 0.6s;
}

.delay-700 {
  animation-delay: 0.7s;
}

.delay-800 {
  animation-delay: 0.8s;
}

.delay-900 {
  animation-delay: 0.9s;
}

.delay-1000 {
  animation-delay: 1s;
}

/* ========== 持续时间类 ========== */
.duration-300 {
  animation-duration: 0.3s;
}

.duration-500 {
  animation-duration: 0.5s;
}

.duration-700 {
  animation-duration: 0.7s;
}

.duration-1000 {
  animation-duration: 1s;
}

.duration-1500 {
  animation-duration: 1.5s;
}

.duration-2000 {
  animation-duration: 2s;
}

/* ========== 缓动函数类 ========== */
.ease-linear {
  animation-timing-function: linear;
}

.ease-in {
  animation-timing-function: ease-in;
}

.ease-out {
  animation-timing-function: ease-out;
}

.ease-in-out {
  animation-timing-function: ease-in-out;
}

.ease-bounce {
  animation-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ========== 视差滚动效果 ========== */
.parallax {
  position: relative;
  transform-style: preserve-3d;
}

.parallax-layer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.parallax-slow {
  transform: translateZ(-1px) scale(2);
}

.parallax-medium {
  transform: translateZ(-2px) scale(3);
}

.parallax-fast {
  transform: translateZ(-3px) scale(4);
}

/* ========== 加载动画 ========== */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

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

.loading-dots {
  display: inline-block;
}

.loading-dots::after {
  content: '';
  animation: loadingDots 1.5s infinite;
}

@keyframes loadingDots {
  0%, 20% {
    content: '';
  }
  40% {
    content: '.';
  }
  60% {
    content: '..';
  }
  80%, 100% {
    content: '...';
  }
}