* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 20px 0;
}

.container {
  text-align: center;
  border-radius: 24px;
  padding: 40px 30px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
  max-width: 500px;
  width: 90%;
  position: relative;
  z-index: 1;
  border: 3px solid transparent;
  background-clip: padding-box;
}

/* 渐变边框效果 */
.container::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  background: linear-gradient(45deg, 
    #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, 
    #feca57, #ff9ff3, #54a0ff, #5f27cd,
    #ff6b6b);
  background-size: 400% 400%;
  border-radius: 27px;
  z-index: -1;
  animation: gradientFlow 6s ease infinite;
  transform: rotate3d(1, 1, 1, 45deg);
}

/* 内层白色背景 */
.container::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 1);
  border-radius: 24px;
  z-index: -1;
}

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


.logo {
  width: 100px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 12px;
  transition: transform 0.3s ease;
  position: relative;
  z-index: 2;
}

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

.company-name {
  font-size: 2rem;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 15px;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 2;
}

.slogan {
  font-size: 1rem;
  color: #4a5568;
  line-height: 1.6;
  font-weight: 400;
  margin-bottom: 0;
  letter-spacing: 0.5px;
  position: relative;
  z-index: 2;
}

.footer {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.8rem;
  background: rgba(0, 0, 0, 0.2);
  padding: 6px 12px;
  border-radius: 16px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 20px;
}

.footer a {
  color: #fff;
  text-decoration: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
  body {
    padding: 15px 0;
  }

  .container {
    padding: 30px 25px;
    width: 95%;
    border-radius: 20px;
  }

  .company-name {
    font-size: 1.6rem;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
  }

  .slogan {
    font-size: 0.9rem;
  }

  .logo {
    width: 80px;
    margin-bottom: 15px;
  }

  .footer {
    font-size: 0.7rem;
    padding: 5px 10px;
  }
}

@media (max-width: 480px) {
  body {
    padding: 10px 0;
  }

  .container {
    padding: 25px 20px;
  }

  .company-name {
    font-size: 1.4rem;
    margin-bottom: 10px;
  }

  .slogan {
    font-size: 0.8rem;
  }

  .logo {
    width: 70px;
    margin-bottom: 12px;
  }
}

/* 微动画效果 */
.container {
  animation: fadeInUp 1s ease-out;
}

/* 增强容器悬停效果 */
.container:hover {
  transform: translateY(-5px);
  box-shadow: 0 35px 70px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

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