/* 西安VR全景拍摄服务网站 - 动画样式 */

/* ========== 滚动渐显动画 ========== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ========== 悬浮光效 ========== */
.glow-effect {
  position: relative;
  transition: all 0.3s ease;
}

.glow-effect:hover {
  box-shadow: 0 0 30px var(--neon-blue), 0 0 60px rgba(0, 212, 255, 0.5);
  transform: scale(1.02);
}

.glow-effect::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--neon-blue), var(--neon-purple), var(--neon-blue));
  background-size: 400%;
  z-index: -1;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.3s ease;
  animation: borderGlow 3s ease infinite;
}

.glow-effect:hover::after {
  opacity: 1;
}

@keyframes borderGlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ========== 页面切换动画 ========== */
.page-transition {
  animation: fadeInPage 0.5s ease;
}

@keyframes fadeInPage {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ========== 3D平移动画 ========== */
.slide-3d {
  animation: slide3D 0.6s ease;
}

@keyframes slide3D {
  from {
    opacity: 0;
    transform: perspective(1000px) translateZ(-100px) rotateY(10deg);
  }
  to {
    opacity: 1;
    transform: perspective(1000px) translateZ(0) rotateY(0);
  }
}

/* ========== 粒子背景 ========== */
.particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--neon-blue);
  border-radius: 50%;
  animation: float 15s infinite;
  opacity: 0.5;
}

@keyframes float {
  0%, 100% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.5;
  }
  90% {
    opacity: 0.5;
  }
  100% {
    transform: translateY(-100vh) rotate(720deg);
    opacity: 0;
  }
}

/* ========== 霓虹闪烁效果 ========== */
.neon-blink {
  animation: neonBlink 2s ease infinite;
}

@keyframes neonBlink {
  0%, 100% {
    text-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue), 0 0 30px var(--neon-blue);
  }
  50% {
    text-shadow: 0 0 5px var(--neon-blue), 0 0 10px var(--neon-blue), 0 0 15px var(--neon-blue);
  }
}

/* ========== 悬浮效果 ========== */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
}

/* ========== 旋转动画 ========== */
.rotate-slow {
  animation: rotateSlow 20s linear infinite;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ========== 脉冲效果 ========== */
.pulse {
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* ========== 加载动画 ========== */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--dark-bg);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loading.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 3px solid rgba(0, 212, 255, 0.3);
  border-top-color: var(--neon-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== 文字渐入效果 ========== */
.text-gradient {
  background: linear-gradient(90deg, var(--neon-blue), var(--light-text), var(--neon-blue));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: textGradient 3s linear infinite;
}

@keyframes textGradient {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}