* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 让主内容区域自动填充空间 */
main {
    flex: 1;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

h1 {
    font-size: 2em;
    color: #333;
}

.devices-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 300px));
    gap: 20px;
    justify-content: center;
    padding: 10px;
}

.device-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    width: 100%;
}

.device-name {
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 10px;
}

.device-description {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.4;
}

.device-status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-online {
    background-color: #4CAF50;
}

.status-offline {
    background-color: #f44336;
}

.status-text {
    margin-top: 10px;
    padding: 12px;
    background: #f8f8f8;
    border-radius: 8px;
    font-size: 0.9em;
    line-height: 1.4;
}

.update-time {
    margin-top: 12px;
    color: #888;
    font-size: 0.8em;
    text-align: right;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 1.5em;
    }

    .devices-container {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .device-card {
        font-size: 14px;
    }
} 

/* 修改访问统计样式 */
.visit-stats {
    width: 100%;
    padding: 10px;
    text-align: center;
    border-top: 1px solid #eee;
    color: #999;
    font-size: 12px;
    background-color: #f5f5f5;
}

.stats-container {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.stat-label {
    color: #999;
}

.stat-value {
    color: #666;
}

/* 移动端适配时调整间距 */
@media (max-width: 768px) {
    .visit-stats {
        margin-top: 40px;
        padding: 15px;
    }
    
    .stats-container {
        gap: 15px;
    }
}