/* 社交图标悬停容器 - 兼容移动端 */
.social-icon-container {
  position: relative;
}

/* 二维码弹窗默认隐藏 */
.qr-code-popup {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 250;
  pointer-events: none;
}

/* 二维码图片样式 */
.qr-code-img {
  width: 280px !important;
  height: auto !important;
  max-width: none !important;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 悬停和触摸时显示弹窗 */
.social-icon-container:hover .qr-code-popup,
.social-icon-container:focus-within .qr-code-popup,
.social-icon-container:active .qr-code-popup,
.social-icon-container.touch-active .qr-code-popup,
.social-icon-container.click-active .qr-code-popup {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* 动画性能优化 */

/* GPU加速 */
.animate-on-scroll,
.fade-in,
.slide-up-fade,
.scale-up-fade,
.slide-left-fade,
.slide-right-fade,
.ripple,
.rotate-on-hover,
.scale-on-hover,
.zoom-on-hover img,
.lift-on-hover,
.underline-animation::after,
.navbar,
.mobile-menu,
.carousel-item,
.qr-code-popup {
  will-change: transform, opacity;
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* 动画缓动函数 */
.ease-in-out {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.ease-out {
  transition-timing-function: cubic-bezier(0.0, 0, 0.2, 1);
}

.ease-in {
  transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
}

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

/* 滚动进度条 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #1E40AF 0%, #3B82F6 50%, #60A5FA 100%);
  z-index: 9999;
  transition: width 0.1s ease;
}

/* 移动端动画优化 */
@media (max-width: 768px) {
  .animate-on-scroll,
  .fade-in,
  .slide-up-fade,
  .scale-up-fade,
  .slide-left-fade,
  .slide-right-fade {
    transition-duration: 0.4s;
  }
  
  .delay-100 { transition-delay: 0.05s; }
  .delay-200 { transition-delay: 0.1s; }
  .delay-300 { transition-delay: 0.15s; }
  .delay-400 { transition-delay: 0.2s; }
  .delay-500 { transition-delay: 0.25s; }
}

/* 减少动画偏好支持 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-progress {
    display: none;
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .underline-animation::after {
    height: 3px;
  }
  
  .ripple {
    background-color: rgba(0, 0, 0, 0.6);
  }
}

/* 打印样式 */
@media print {
  .animate-on-scroll,
  .fade-in,
  .slide-up-fade,
  .scale-up-fade,
  .slide-left-fade,
  .slide-right-fade,
  .scroll-progress {
    display: none !important;
  }
}
.chang-page {
    width: inherit;
    display: flex;
    justify-content: space-between;
    font-family: SimSun;
    font-size: 12px;
    color: #444;
  
}
/* 新闻内容图片居中 */
.prose img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  max-width: 90%;
  height: auto;
}