body {
  margin: 0;
  font-family: 'Microsoft YaHei', sans-serif;
  background: linear-gradient(to right, #00c6ff, #0072ff);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.container {
  text-align: center;
}
.card {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
  max-width: 400px;
  margin: auto;
  transition: transform 0.3s;
}
.card:hover {
  transform: scale(1.05);
}
.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 3px solid white;
  margin-bottom: 20px;
}
.subtitle {
  font-size: 1.2rem;
  color: #eeeeee;
  margin-bottom: 20px;
}
.info p {
  margin: 8px 0;
}
button {
  background-color: #ff4081;
  border: none;
  padding: 12px 24px;
  color: white;
  font-size: 1rem;
  border-radius: 30px;
  cursor: pointer;
  transition: background-color 0.3s;
}
button:hover {
  background-color: #e91e63;
}
#toast {
  visibility: hidden;
  min-width: 250px;
  background-color: #333;
  color: #fff;
  text-align: center;
  border-radius: 25px;
  padding: 16px;
  position: fixed;
  z-index: 1;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 17px;
}
#toast.show {
  visibility: visible;
  animation: fadein 0.5s, fadeout 0.5s 2.5s;
}
@keyframes fadein {
  from { bottom: 0; opacity: 0; }
  to { bottom: 40px; opacity: 1; }
}
@keyframes fadeout {
  from { bottom: 40px; opacity: 1; }
  to { bottom: 0; opacity: 0; }
}