/* 通用样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f5f5f5;
}

/* 登录页样式 */
.login-container {
    width: 350px;
    margin: 100px auto;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.login-title {
    text-align: center;
    margin-bottom: 25px;
    color: #333;
    font-size: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #666;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.error-message {
    color: #ff4444;
    margin-bottom: 15px;
    text-align: center;
}

.login-btn {
    width: 100%;
    padding: 12px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-btn:hover {
    background-color: #0069d9;
}

.copyright {
    text-align: center;
    margin-top: 20px;
    color: #999;
    font-size: 12px;
}

/* 头部样式 */
.header {
    background-color: #007bff;
    color: #fff;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logout-btn {
    color: #fff;
    text-decoration: none;
    padding: 6px 12px;
    border: 1px solid #fff;
    border-radius: 4px;
    font-size: 14px;
    transition: background-color 0.3s;
    background-color: rgba(255,255,255,0.1);
    cursor: pointer;
}

.logout-btn:hover {
    background-color: rgba(255,255,255,0.2);
}


/* 容器样式 */
.container {
    width: 95%;
    margin: 20px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

/* 搜索栏样式 */
.search-bar {
    margin-bottom: 20px;
}

.search-bar input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    width: 250px;
    font-size: 14px;
}

.search-btn {
    padding: 8px 16px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-size: 14px;
}

/* 表格样式 */
.device-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.device-table th, .device-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.device-table th {
    background-color: #f8f9fa;
    color: #333;
}

.status {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.status.available {
    background-color: #d4edda;
    color: #155724;
}

.status.unavailable {
    background-color: #f8d7da;
    color: #721c24;
}

.operate-btn {
    padding: 4px 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.enable-btn {
    background-color: #28a745;
    color: #fff;
}

.disable-btn {
    background-color: #dc3545;
    color: #fff;
}

.no-data {
    text-align: center;
    color: #999;
    padding: 30px;
}