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

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

/* 容器 */
.container {
    display: grid;
    grid-template-rows: auto 1fr;
    height: 100vh;
    width: 100%;
    margin: 0;
    padding: 0;
    gap: 8px;
}

/* Header 部分 */
.header {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.header h1 {
    color: #333;
    font-size: 24px;
}

/* Content 部分 */
.content {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: 8px;
}

/* 上 Grid */
.upper-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
}

/* 下 Grid */
.lower-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
}

/* Grid 项目 */
.grid-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.grid-item h3 {
    color: #333;
    margin-bottom: 10px;
    font-size: 18px;
}

.grid-item p {
    color: #666;
    font-size: 14px;
}