/* 全局通用样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft Yahei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

a {
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    opacity: 0.8;
}

/* 卡片通用样式 */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #e9ecef;
    border-radius: 10px 10px 0 0 !important;
    padding: 15px 20px;
}

.card-body {
    padding: 20px;
}

/* 按钮通用样式 */
.btn {
    border-radius: 6px;
    padding: 8px 16px;
    border: none;
    transition: all 0.3s ease;
}

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

.btn-success:hover {
    background-color: #218838;
}

.btn-primary {
    background-color: #007bff;
}

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

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

/* 表单通用样式 */
.form-control {
    border-radius: 6px;
    border: 1px solid #ced4da;
    padding: 10px 15px;
}

.form-control:focus {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

/* 提示框样式 */
.alert {
    border-radius: 6px;
    border: none;
    padding: 15px 20px;
    margin-bottom: 20px;
}

/* 表格通用样式 */
.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    color: #495057;
    border-top: none;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* 响应式适配 */
@media (max-width: 768px) {
    .sidebar {
        position: relative;
        height: auto;
        margin-bottom: 20px;
    }
    
    .content {
        margin-left: 0;
        padding: 15px;
    }
    
    .header .row {
        flex-direction: column;
        align-items: flex-start !important;
    }
    
    .header .col-md-6 {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .header .nav {
        justify-content: flex-start !important;
    }
}