/* ============================================
   YUEWEI 交互动画系统
   Interactive Animation System
   丰富的用户交互体验
   ============================================ */

/* ============================================
   1. 色彩系统增强 - Enhanced Color System
   ============================================ */
:root {
  /* 渐变色 - Gradients */
  --gradient-primary: linear-gradient(135deg, #4a90a4 0%, #2c5f7c 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-cool: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-warm: linear-gradient(135deg, #f97316 0%, #ec4899 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-purple: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);

  /* 强调色 - Accent Colors */
  --accent-orange: #f59e0b;
  --accent-pink: #ec4899;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-red: #ef4444;
}

/* ============================================
   2. 全局动画关键帧 - Global Keyframes
   ============================================ */

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

/* 脉冲动画 */
@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(74, 144, 164, 0.3);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 40px rgba(74, 144, 164, 0.6);
    transform: scale(1.02);
  }
}

/* 彩虹边框动画 */
@keyframes rainbow-border {
  0% { border-color: #4a90a4; }
  25% { border-color: #8b5cf6; }
  50% { border-color: #ec4899; }
  75% { border-color: #f59e0b; }
  100% { border-color: #4a90a4; }
}

/* 闪烁星星效果 */
@keyframes twinkle {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.2); }
}

/* 波纹扩散 */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* 渐变流动 */
@keyframes gradient-flow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* 弹跳入场 */
@keyframes bounce-in {
  0% {
    opacity: 0;
    transform: scale(0.3) translateY(50px);
  }
  50% {
    opacity: 1;
    transform: scale(1.05) translateY(-10px);
  }
  70% {
    transform: scale(0.95) translateY(5px);
  }
  100% {
    transform: scale(1) translateY(0);
  }
}

/* 滑入动画 */
@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

/* 心跳动画 */
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.1); }
  28% { transform: scale(1); }
  42% { transform: scale(1.1); }
  70% { transform: scale(1); }
}

/* ============================================
   3. 卡片交互效果 - Card Interactions
   ============================================ */

/* 服务卡片增强 */
.yw-service-card {
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.yw-service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(74, 144, 164, 0.1),
    transparent
  );
  transition: left 0.6s ease;
}

.yw-service-card:hover::before {
  left: 100%;
}

.yw-service-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow:
    0 20px 40px rgba(74, 144, 164, 0.15),
    0 0 0 1px rgba(74, 144, 164, 0.1);
}

.yw-service-card:hover .yw-service-icon {
  transform: scale(1.15) rotate(5deg);
  background: var(--gradient-primary);
}

.yw-service-card:hover .yw-service-icon svg {
  stroke: white;
}

.yw-service-icon {
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 服务编号动画 */
.yw-service-number {
  transition: all 0.3s ease;
}

.yw-service-card:hover .yw-service-number {
  transform: scale(1.2);
  color: var(--accent-orange);
}

/* 服务标签动画 */
.yw-service-tags span {
  transition: all 0.3s ease;
}

.yw-service-card:hover .yw-service-tags span {
  background: rgba(74, 144, 164, 0.15);
  transform: translateY(-2px);
}

/* ============================================
   4. 优势卡片效果 - Advantage Cards
   ============================================ */

.yw-advantage-card {
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.yw-advantage-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-primary);
  transition: width 0.4s ease;
}

.yw-advantage-card:hover::after {
  width: 100%;
}

.yw-advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.yw-advantage-card:hover .yw-advantage-icon {
  animation: pulse-glow 1.5s ease-in-out infinite;
  background: var(--gradient-primary);
}

.yw-advantage-card:hover .yw-advantage-icon svg {
  stroke: white;
}

.yw-advantage-icon {
  transition: all 0.4s ease;
}

/* ============================================
   5. 价值卡片效果 - Value Cards
   ============================================ */

.yw-value-card {
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.yw-value-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(74, 144, 164, 0.1) 0%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.yw-value-card:hover::before {
  opacity: 1;
}

.yw-value-card:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow:
    0 25px 50px rgba(74, 144, 164, 0.2),
    0 0 0 2px rgba(74, 144, 164, 0.2);
}

.yw-value-card:hover .yw-value-card-icon {
  transform: scale(1.2) rotate(10deg);
  animation: float 2s ease-in-out infinite;
}

.yw-value-card-icon {
  transition: all 0.4s ease;
}

/* 特色卡片特殊效果 */
.yw-value-card-featured {
  background: var(--gradient-primary);
  position: relative;
}

.yw-value-card-featured::before {
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.2) 0%,
    transparent 70%
  );
}

.yw-value-card-featured:hover {
  transform: translateY(-15px) scale(1.05);
  box-shadow:
    0 30px 60px rgba(74, 144, 164, 0.3),
    0 0 60px rgba(74, 144, 164, 0.2);
}

/* ============================================
   6. 合作卡片效果 - Cooperation Cards
   ============================================ */

.yw-coop-card {
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.yw-coop-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.yw-coop-card:hover::before {
  transform: scaleX(1);
}

.yw-coop-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.yw-coop-card:hover .yw-coop-icon {
  background: var(--gradient-primary);
  animation: spin-slow 8s linear infinite;
}

.yw-coop-card:hover .yw-coop-icon svg {
  stroke: white;
}

.yw-coop-icon {
  transition: all 0.4s ease;
}

/* ============================================
   7. 流程时间线效果 - Process Timeline
   ============================================ */

.yw-process-step {
  opacity: 0;
  animation: slide-in-left 0.6s ease forwards;
}

.yw-process-step:nth-child(1) { animation-delay: 0.1s; }
.yw-process-step:nth-child(2) { animation-delay: 0.2s; }
.yw-process-step:nth-child(3) { animation-delay: 0.3s; }
.yw-process-step:nth-child(4) { animation-delay: 0.4s; }
.yw-process-step:nth-child(5) { animation-delay: 0.5s; }

.yw-process-marker {
  transition: all 0.3s ease;
}

.yw-process-step:hover .yw-process-marker {
  transform: scale(1.2);
  box-shadow: 0 0 20px rgba(74, 144, 164, 0.5);
}

.yw-process-step:hover .yw-process-content h4 {
  color: var(--yw-primary);
}

.yw-process-content h4 {
  transition: color 0.3s ease;
}

/* ============================================
   8. CTA 按钮效果 - CTA Button Effects
   ============================================ */

.yw-cta-btn {
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.yw-cta-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.yw-cta-btn:hover::before {
  width: 300px;
  height: 300px;
}

.yw-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow:
    0 10px 30px rgba(74, 144, 164, 0.4),
    0 0 20px rgba(74, 144, 164, 0.3);
}

.yw-cta-btn svg {
  transition: transform 0.3s ease;
}

.yw-cta-btn:hover svg {
  transform: translateX(5px);
}

/* ============================================
   9. 导航栏效果 - Navigation Effects
   ============================================ */

.sc-nav {
  transition: all 0.3s ease;
}

.sc-nav-links a {
  position: relative;
  transition: all 0.3s ease;
}

.sc-nav-links a::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #4a90a4, #7dd3c0);
  transition: width 0.3s ease;
  border-radius: 1px;
}

.sc-nav-links a:hover::after,
.sc-nav-links a.active::after {
  width: 30px;
}

.sc-nav-links a:hover {
  color: #ffffff;
  transform: translateY(-2px);
}

/* Logo 动画 */
.sc-nav-logo {
  transition: all 0.3s ease;
}

.sc-nav-logo:hover {
  transform: scale(1.1);
  text-shadow: 0 0 20px rgba(74, 144, 164, 0.5);
}

/* ============================================
   10. Hero 区域增强 - Hero Section Enhanced
   ============================================ */

.yw-hero-badge {
  animation: bounce-in 0.8s ease;
}

.yw-hero-title-line {
  animation: slide-in-up 0.8s ease;
}

.yw-hero-title-line:nth-child(2) {
  animation-delay: 0.2s;
}

.yw-hero-desc {
  animation: slide-in-up 0.8s ease 0.4s both;
}

.yw-hero-tags {
  animation: slide-in-up 0.8s ease 0.6s both;
}

.yw-hero-tag {
  transition: all 0.3s ease;
  cursor: pointer;
}

.yw-hero-tag:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 5px 15px rgba(74, 144, 164, 0.3);
}

/* ============================================
   11. 区域卡片效果 - Region Cards
   ============================================ */

.region-card {
  position: relative;
  overflow: hidden;
}

.region-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 0%,
    rgba(74, 144, 164, 0.3) 100%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
}

.region-card:hover::after {
  opacity: 1;
}

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

.region-img {
  transition: transform 0.6s ease;
}

.region-label {
  transition: all 0.3s ease;
}

.region-card:hover .region-label {
  background: linear-gradient(transparent, rgba(74, 144, 164, 0.95));
  padding-bottom: 20px;
}

/* ============================================
   12. 产品卡片效果 - Product Cards
   ============================================ */

.product-card {
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  opacity: 0;
  transform: scale(0);
  transition: all 0.4s ease;
  z-index: 10;
}

.product-card:hover::before {
  opacity: 1;
  transform: scale(1);
}

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

.product-img {
  transition: transform 0.6s ease;
}

.product-label {
  transition: all 0.3s ease;
}

.product-card:hover .product-label {
  background: linear-gradient(transparent, rgba(74, 144, 164, 0.95));
}

/* ============================================
   13. 页脚效果 - Footer Effects
   ============================================ */

.social-icon {
  transition: all 0.3s ease;
}

.social-icon:hover {
  transform: translateY(-5px) scale(1.2);
  color: var(--yw-primary);
}

.footer-title {
  position: relative;
  display: inline-block;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
}

/* ============================================
   14. 滚动动画 - Scroll Animations
   ============================================ */

/* 元素入场动画类 */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

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

/* 从左滑入 */
.slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease;
}

.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 从右滑入 */
.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease;
}

.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 缩放入场 */
.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ============================================
   15. 粒子背景效果 - Particle Background
   ============================================ */

.particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(74, 144, 164, 0.3);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; top: 80%; animation-delay: 1s; }
.particle:nth-child(3) { left: 30%; top: 40%; animation-delay: 2s; }
.particle:nth-child(4) { left: 40%; top: 60%; animation-delay: 0.5s; }
.particle:nth-child(5) { left: 50%; top: 30%; animation-delay: 1.5s; }
.particle:nth-child(6) { left: 60%; top: 70%; animation-delay: 2.5s; }
.particle:nth-child(7) { left: 70%; top: 50%; animation-delay: 0.8s; }
.particle:nth-child(8) { left: 80%; top: 20%; animation-delay: 1.8s; }
.particle:nth-child(9) { left: 90%; top: 90%; animation-delay: 3s; }
.particle:nth-child(10) { left: 15%; top: 55%; animation-delay: 2.2s; }

/* ============================================
   16. 鼠标跟随效果 - Mouse Follow Effect
   ============================================ */

.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  background: radial-gradient(
    circle,
    rgba(74, 144, 164, 0.15) 0%,
    transparent 70%
  );
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 9999;
  transition: opacity 0.3s ease;
  opacity: 0;
}

body:hover .cursor-glow {
  opacity: 1;
}

/* ============================================
   17. 加载动画 - Loading Animations
   ============================================ */

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(74, 144, 164, 0.2);
  border-top-color: var(--yw-primary);
  border-radius: 50%;
  animation: spin-slow 1s linear infinite;
}

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

@media (max-width: 768px) {
  .yw-service-card:hover,
  .yw-advantage-card:hover,
  .yw-value-card:hover,
  .yw-coop-card:hover {
    transform: translateY(-5px);
  }

  .yw-cta-btn:hover {
    transform: translateY(-2px);
  }

  .particle {
    display: none;
  }
}

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

/* 霓虹发光文字 */
.neon-text {
  text-shadow:
    0 0 10px var(--yw-primary),
    0 0 20px var(--yw-primary),
    0 0 30px var(--yw-primary);
}

/* 玻璃态效果 */
.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 渐变文字 */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 3D 卡片效果 */
.card-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.card-3d:hover {
  transform: rotateY(5deg) rotateX(5deg);
}

/* 悬浮阴影 */
.floating-shadow {
  animation: float 3s ease-in-out infinite;
}

.floating-shadow::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 10%;
  width: 80%;
  height: 20px;
  background: radial-gradient(ellipse, rgba(0,0,0,0.2) 0%, transparent 70%);
  animation: float-shadow 3s ease-in-out infinite;
}

@keyframes float-shadow {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(0.8); opacity: 0.3; }
}

/* ============================================
   20. 数字计数动画 - Number Counter
   ============================================ */

.counter-number {
  display: inline-block;
  transition: all 0.3s ease;
}

.counter-number:hover {
  transform: scale(1.1);
  color: var(--accent-orange);
}