body {
    font-family: "Arial", sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-image: url('https://cn.bing.com/th?id=OHR.SplugenPass_ZH-CN8347591461_1920x1080.webp');
    background-size: cover;
    background-position: center;
}

.container {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.5);
    padding: 2%;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    width: 70%;
    max-width: 800px;
    margin: auto;
    -webkit-backdrop-filter: blur(10px); 
    background: rgba(255, 255, 255, 0.5); 
}

h1 {
    color: #333333;
    margin-bottom: 20px;
}
h2 {
    color: #333333;
    margin-bottom: 20px;
}

button {
    font: inherit;
    padding: 1em 2em;
    color: #fff;
    background-color: #007BFF;
    border: none;
    border-radius: 50px;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.3s ease,
                box-shadow 0.3s ease,
                color 0.3s ease;
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    outline: none;
    margin-right: 20px;  /* 添加间隔 */
}

button:last-child {
    margin-right: 0;  /* 解决最后一个按钮右侧的额外间隔 */
}

button:hover,
button:focus {
    color: #fff;
    background-color: #0056b3;
    box-shadow: 0px 7px 20px rgba(0, 0, 0, 0.2);
}

button:active {
    box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.1);
}


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