/**
 * Animations - 法界通官方网站
 * 动画效果，包括淡入、滑入、缩放等
 */

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

.fade-in {
  animation: fadeIn var(--transition-slow) ease-out;
}

/* ========== 从下滑入动画 ========== */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in-up {
  animation: slideInUp var(--transition-slow) ease-out;
}

/* ========== 从左滑入动画 ========== */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft var(--transition-slow) ease-out;
}

/* ========== 从右滑入动画 ========== */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight var(--transition-slow) ease-out;
}

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

.scale-in {
  animation: scaleIn var(--transition-slow) ease-out;
}

/* ========== 滚动触发动画（初始状态） ========== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* ========== 延迟动画 ========== */
.delay-100 {
  animation-delay: 100ms;
  transition-delay: 100ms;
}

.delay-200 {
  animation-delay: 200ms;
  transition-delay: 200ms;
}

.delay-300 {
  animation-delay: 300ms;
  transition-delay: 300ms;
}

.delay-400 {
  animation-delay: 400ms;
  transition-delay: 400ms;
}

.delay-500 {
  animation-delay: 500ms;
  transition-delay: 500ms;
}

/* ========== 悬停效果 ========== */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

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

.hover-brightness {
  transition: filter var(--transition-base);
}

.hover-brightness:hover {
  filter: brightness(1.1);
}

/* ========== 脉冲动画 ========== */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ========== 弹跳动画 ========== */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.bounce {
  animation: bounce 1s ease-in-out infinite;
}

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

.spin {
  animation: spin 1s linear infinite;
}

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

.gradient-animate {
  background-size: 200% 200%;
  animation: gradientShift 5s ease infinite;
}

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

.typewriter {
  overflow: hidden;
  white-space: nowrap;
  animation: typing 3s steps(40, end);
}

/* ========== 闪烁效果 ========== */
@keyframes blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

.blink {
  animation: blink 1s ease-in-out infinite;
}

/* ========== 摇晃效果 ========== */
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

.shake {
  animation: shake 0.5s ease-in-out;
}

/* ========== 淡入淡出循环 ========== */
@keyframes fadeInOut {
  0%, 100% {
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
}

.fade-in-out {
  animation: fadeInOut 3s ease-in-out infinite;
}

/* ========== 平滑过渡 ========== */
.transition-all {
  transition: all var(--transition-base);
}

.transition-colors {
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

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

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