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

body {
    font-family: 'Microsoft YaHei', sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
    color: #333;
}

a {
    text-decoration: none;
    color: #4CAF50;
}

a:hover {
    text-decoration: underline;
}

/* 通用按钮样式 */
.btn {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    text-decoration: none;
}

.btn:hover {
    background-color: #45a049;
    text-decoration: none;
}

.btn-secondary {
    background-color: #f1f1f1;
    color: #333;
}

.btn-secondary:hover {
    background-color: #e5e5e5;
}

.btn-danger {
    background-color: #f44336;
}

.btn-danger:hover {
    background-color: #d32f2f;
}

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

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-control:focus {
    border-color: #4CAF50;
    outline: none;
}

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

/* 辅助类 */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.alert {
    padding: 10px 15px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        flex-direction: column;
    }
    
    .search-form {
        margin-top: 15px;
        width: 100%;
    }
    
    .area-grid, .location-grid, .content-list {
        grid-template-columns: 1fr;
    }
}