.login-container {
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #165DFF 0%, #0E42D2 100%);
  position: relative;
  overflow: hidden;
}

.login-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
  opacity: 0.1;
}

.login-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
  padding: 40px 30px;
  position: relative;
  z-index: 10;
  transform: translateY(0);
  transition: var(--transition);
}

.login-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15);
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo {
  width: 64px;
  height: 64px;
  background-color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--white);
  font-size: 32px;
  box-shadow: 0 4px 16px rgba(22, 93, 255, 0.3);
}

.login-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.login-desc {
  font-size: 14px;
  color: var(--gray-500);
}

.login-form .form-group {
  margin-bottom: 24px;
}

.login-form .form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-600);
}

.login-form .form-control {
  padding: 12px 16px;
  font-size: 15px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-300);
  transition: var(--transition);
}

.login-form .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.15);
}

.login-form .btn-primary {
  padding: 12px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
}

.login-form .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(22, 93, 255, 0.3);
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: var(--gray-500);
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-card {
  animation: fadeIn 0.5s ease forwards;
}

.login-form .form-group {
  animation: fadeIn 0.5s ease forwards;
  opacity: 0;
}

.login-form .form-group:nth-child(1) {
  animation-delay: 0.1s;
}

.login-form .form-group:nth-child(2) {
  animation-delay: 0.2s;
}

.login-form button {
  animation: fadeIn 0.5s ease forwards;
  opacity: 0;
  animation-delay: 0.3s;
}