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

body {
    font-family: "微软雅黑", sans-serif;
    color: #333;
    line-height: 1.6;
}

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

/* 头部样式 */
header {
    background-color: #fff;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.header-left {
    float: left;
    font-size: 18px;
    font-weight: bold;
    color: #c0392b;
}

.header-right {
    float: right;
    color: #666;
    cursor: pointer;
}

/* Banner样式 */
.banner img {
  width: 50%; /* 数值越小，图片显示越窄，按需调整 */
  margin: 0 auto; 
  height: auto; 
  display: block; 
}
}

/* 卡片样式 */
.cards {
    padding: 40px 0;
}

.cards .container {
    display: flex;
    justify-content: space-between;
}

.card {
    width: 32%;
}

.card img {
    width: 100%;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.card h3 {
    margin: 10px 0;
    color: #333;
    border-bottom: 2px solid #e74c3c;
    padding-bottom: 5px;
    display: inline-block;
}

.card p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
}

/* 页脚样式 */
footer {
    background-color: #f8f8f8;
    padding: 30px 0;
    text-align: center;
    color: #666;
    font-size: 14px;
}

footer p {
    margin-bottom: 8px;
}

/* 响应式适配（可选） */
@media (max-width: 1200px) {
    .container {
        width: 90%;
    }
}

@media (max-width: 768px) {
    .cards .container {
        flex-direction: column;
    }
    .card {
        width: 100%;
        margin-bottom: 30px;
    }
    .header-left, .header-right {
        float: none;
        text-align: center;
        margin-bottom: 10px;
    }
}