body {
    margin: 0;
    font-family: "Microsoft YaHei", sans-serif; /* 使用微软雅黑或其他中文字体 */
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed; /* 背景固定 */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    transition: background-image 1s ease-in-out; /* 背景过渡效果 */
    background-image: url(https://i.imgur.com/Hk9hK1Z.jpg); /* 默认背景 */
}

.container {
    background-color: rgba(255, 255, 255, 0.8); /* 半透明白色背景 */
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    text-align: center;
}

h1 {
    margin-bottom: 30px;
    color: #333;
}

.input-area {
    margin-bottom: 20px;
}

input[type="text"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-right: 10px;
    width: 60%;
}

button {
    padding: 10px 20px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #2980b9;
}

audio {
    width: 100%;
}