/* 动画效果定义 */
@keyframes bgPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.05); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

@keyframes laserScan {
  0% { transform: scaleX(0); left: 0; }
  50% { transform: scaleX(1); left:0; }
  100% { transform: scaleX(0); left: 100%; }
}

@keyframes cursorBreathe {
  0%,100% { opacity: 0.3; }
  50% { opacity: 1; }
}

@keyframes codeScroll {
  0% { transform: translateY(0); opacity: 0; }
  8% { opacity: 0.9; }
  92% { opacity: 0.9; }
  100% { transform: translateY(100vh); opacity: 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes slideInUp {
  from { opacity: 0; transform: translateY(50px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: perspective(1000px) rotateY(-5deg) translateX(100px); }
  to { opacity: 1; transform: perspective(1000px) rotateY(-5deg) translateX(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: perspective(1000px) rotateY(5deg) translateX(-100px); }
  to { opacity: 1; transform: perspective(1000px) rotateY(5deg) translateX(0); }
}

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

@keyframes binaryFlow {
  0% { transform: translateY(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(100%); opacity: 0; }
}

@keyframes scan {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* 简化版代码雨动画 - 从下往上流 */
@keyframes codeRain {
  0% {
    transform: translateY(100vh);
    opacity: 0;
  }
  10% {
    opacity: 0.8;
  }
  80% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-50px);
    opacity: 0;
  }
}

/* 新增：代码行脉冲效果 */
@keyframes codePulse {
  0%, 100% {
    text-shadow: 0 0 5px currentColor, 0 0 10px currentColor, 0 0 20px currentColor;
  }
  50% {
    text-shadow: 0 0 10px currentColor, 0 0 20px currentColor, 0 0 30px currentColor, 0 0 40px currentColor;
  }
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.1; }
  50% { opacity: 0.3; }
}

@keyframes scanLineMove {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

@keyframes particleGlow {
  0%, 100% { box-shadow: 0 0 5px currentColor; }
  50% { box-shadow: 0 0 20px currentColor, 0 0 30px currentColor; }
}