body {
  font-family: sans-serif;
  background-color: #f0f4f8;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.container {
  text-align: center;
  background: white;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  max-width: 600px;
}

h1 {
  color: #333;
}

button {
  background-color: #4CAF50;
  color: white;
  padding: 15px 30px;
  font-size: 18px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin: 20px 0;
}

button:hover {
  background-color: #45a049;
}

.gua {
  font-size: 48px;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.line {
  width: 100px;
  height: 10px;
  margin: 5px 0;
  background-color: #333;
  opacity: 0;
  animation: fadeIn 0.5s forwards;
}

.broken {
  background-color: transparent;
  border-top: 5px solid #333;
  border-bottom: 5px solid #333;
  height: 0;
}

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

.interpretation {
  margin-top: 20px;
  text-align: left;
  color: #555;
}