/* 全局通用样式 */

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 头部 */
header {
    background-color: #1976D2;
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 24px;
}

/* 主内容区 */
main {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 页脚 */
footer {
    text-align: center;
    margin-top: 20px;
    padding: 10px;
    color: #666;
    font-size: 14px;
}

/* 链接 */
a {
    color: #1976D2;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* 按钮 */
button {
    cursor: pointer;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    font-size: 14px;
    transition: background-color 0.3s;
}
/* 登出按钮 */
.logout-btn {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.logout-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
    text-decoration: none;
}
.login-btn, .save-btn, .add-btn {
    background-color: #1976D2;
    color: white;
}

.login-btn:hover, .save-btn:hover, .add-btn:hover {
    background-color: #1565C0;
}

.delete-btn {
    background-color: #f44336;
    color: white;
}

.delete-btn:hover {
    background-color: #da190b;
}

.cancel-btn {
    background-color: #9e9e9e;
    color: white;
}

.cancel-btn:hover {
    background-color: #757575;
}

.view-btn {
    background-color: #2196F3;
    color: white;
}

.view-btn:hover {
    background-color: #0b7dda;
}

/* 表单 */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group textarea {
    resize: vertical;
}

.form-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
}

/* 错误消息 */
.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.data-table th,
.data-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.data-table th {
    background-color: #f2f2f2;
    font-weight: bold;
}

.data-table tr:hover {
    background-color: #f5f5f5;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: white;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 500px;
    border-radius: 8px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .data-table {
        font-size: 14px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
}