/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background-color: #f0f8ff;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
header {
    text-align: center;
    padding: 30px 0;
    background-color: #4CAF50;
    color: white;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

/* 卡片容器 */
.card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

/* 卡片样式 */
.card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    width: 300px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.card-image {
    height: 150px;
    background-color: #f9f9f9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

.card-content {
    padding: 20px;
}

.card-content h2 {
    color: #4CAF50;
    margin-bottom: 10px;
}

.card-content p {
    margin-bottom: 20px;
}

/* 按钮样式 */
.button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

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

.button.disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

/* 页脚样式 */
footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
    color: #666;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .card-container {
        flex-direction: column;
        align-items: center;
    }
    
    .card {
        width: 100%;
        max-width: 350px;
    }
}