/* 动画效果样式表 */

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

/* 向上淡入动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 向下淡入动画 */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 向左淡入动画 */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 向右淡入动画 */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 脉冲动画 */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

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

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

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

/* 骨架屏加载动画 */
@keyframes skeletonLoading {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

/* 应用动画的类 */
.animate-fadeIn {
  animation: fadeIn 1s ease forwards;
}

.animate-fadeInUp {
  animation: fadeInUp 1s ease forwards;
}

.animate-fadeInDown {
  animation: fadeInDown 1s ease forwards;
}

.animate-fadeInLeft {
  animation: fadeInLeft 1s ease forwards;
}

.animate-fadeInRight {
  animation: fadeInRight 1s ease forwards;
}

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

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

.animate-rotate {
  animation: rotate 8s linear infinite;
}

/* 滚动触发动画 */
.reveal {
  opacity: 0;
  transform: translate3d(0, 22px, 0) scale(0.992);
  filter: blur(2.4px);
  will-change: transform, opacity, filter;
  transition: opacity 0.46s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.52s cubic-bezier(0.22, 1, 0.36, 1),
              filter 0.4s ease;
}

.reveal.active {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  filter: blur(0);
}

@media (max-width: 768px) {
  .reveal {
    transform: translate3d(0, 14px, 0) scale(0.997);
    filter: none;
    transition: opacity 0.34s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  }
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
  pointer-events: none;
}

.glass-card:hover::before {
  opacity: 1;
}

/* 按钮点击效果 */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1, 1) translate(-50%, -50%);
  transform-origin: 50% 50%;
}

.btn:active::after {
  animation: ripple 0.6s ease-out;
}

@keyframes ripple {
  0% {
    transform: scale(0, 0);
    opacity: 0.5;
  }
  100% {
    transform: scale(20, 20);
    opacity: 0;
  }
}

/* 骨架屏样式 */
.skeleton {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 25%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.1) 75%);
  background-size: 200px 100%;
  animation: skeletonLoading 1.5s infinite linear;
  border-radius: 4px;
  height: 20px;
  margin-bottom: 10px;
}

.skeleton-title {
  height: 30px;
  width: 70%;
}

.skeleton-text {
  height: 15px;
  width: 100%;
}

.skeleton-text:last-child {
  width: 80%;
}

/* 新闻项加载动画 */
.news-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.news-item.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* 页面过渡效果 */
.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  z-index: 9999;
  transform: translateY(100%);
  transition: transform 0.5s ease;
}

.page-transition.active {
  transform: translateY(0);
}

.page-transition.exit {
  transform: translateY(-100%);
}