/* 通用链接样式 */
a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s;
}

a:hover {
    color: #e74c3c;
}

/* 按钮样式链接 */
.btn-link {
    display: inline-block;
    padding: 8px 20px;
    background: #e74c3c;
    color: #fff;
    border-radius: 4px;
}

.btn-link:hover {
    background: #c0392b;
    color: #fff;
}