.splash-container {
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #667eea 100%);
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* 背景渐变动画 */
@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* 添加背景光晕效果 */
.splash-container::before,
.splash-container::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: float 6s ease-in-out infinite;
}

.splash-container::before {
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.3);
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.splash-container::after {
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.2);
  bottom: 10%;
  right: 10%;
  animation-delay: 3s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) translateX(0px);
  }
  50% {
    transform: translateY(-30px) translateX(20px);
  }
}

.splash-content {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 20px;
}

.splash-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.95) 100%);
  border-radius: 32px;
  padding: 60px 40px;
  text-align: center;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.2), 0 10px 30px rgba(102, 126, 234, 0.3);
  backdrop-filter: blur(20px);
  max-width: 420px;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.5);
  position: relative;
  z-index: 1;
  animation: cardFadeIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes cardFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.splash-logo {
  margin-bottom: 32px;
}

.logo-icon {
  font-size: 96px;
  margin-bottom: 16px;
  animation: bounce 2.5s ease-in-out infinite;
  filter: drop-shadow(0 8px 16px rgba(102, 126, 234, 0.3));
  display: inline-block;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0) scale(1);
  }
  40% {
    transform: translateY(-15px) scale(1.05);
  }
  60% {
    transform: translateY(-8px) scale(1.02);
  }
}

.splash-text {
  margin-bottom: 48px;
}

.app-title {
  background: linear-gradient(135deg, #1a1a1a 0%, #4a4a4a 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  margin-bottom: 12px !important;
  font-weight: 800;
  font-size: 36px;
  letter-spacing: -0.5px;
  animation: titleFadeIn 0.8s ease-out 0.2s both;
}

@keyframes titleFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.app-slogan {
  color: #666;
  font-size: 17px;
  font-weight: 500;
  animation: sloganFadeIn 0.8s ease-out 0.4s both;
}

@keyframes sloganFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.splash-loading {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.splash-status {
  color: #666;
  font-size: 14px;
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* 响应式设计 */
@media (max-width: 480px) {
  .splash-card {
    padding: 40px 24px;
    margin: 20px;
  }
  
  .logo-icon {
    font-size: 60px;
  }
  
  .app-title {
    font-size: 28px !important;
  }
  
  .app-slogan {
    font-size: 14px;
  }
}