body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
main {
    text-align: center;
    padding: 20px;
    border-radius: 8px;
    background-color: #dfd6d6;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 80%;
    height: 50%;
}
header {
    background-color: #333;
    color: #fff;
    padding: 10px;
    text-align: center;
}
h1 {
    color: #333;
    font-size: 7em;
    margin-bottom: 20px;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 10px;
    text-align: center;
}
.dynamic-button {
display: inline-block;
padding: 10px 20px;
text-align: center;
text-decoration: none;
font-size: 16px;
border: 2px solid #333;
color: #333;
border-radius: 5px;
transition: background-color 0.3s, color 0.3s;
}

/* 悬停效果 */
.dynamic-button:hover {
background-color: #333;
color: #fff;
}

/* 按下效果 */
.dynamic-button:active {
transform: scale(0.95);
}

/* 禁用效果 */
.dynamic-button:disabled {
opacity: 0.5;
cursor: not-allowed;
}