/* 自定义样式 */
:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

/* 卡片效果 */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

/* 按钮样式 */
.btn {
    border-radius: 6px;
    padding: 8px 20px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #2980b9);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, var(--primary-color));
    transform: translateY(-1px);
}

.btn-outline-primary {
    border-width: 2px;
}

/* 表格样式 */
.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.table th {
    background-color: var(--dark-color);
    color: white;
    border: none;
    font-weight: 600;
    padding: 15px;
}

.table td {
    padding: 15px;
    vertical-align: middle;
    border-color: #eee;
}

.table-hover tbody tr:hover {
    background-color: rgba(52, 152, 219, 0.08);
}

/* 表单样式 */
.form-control {
    border: 2px solid #e9ecef;
    border-radius: 6px;
    padding: 10px 15px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 8px;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 徽章样式 */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
}

/* 分页样式 */
.pagination {
    justify-content: center;
}

.page-link {
    border: none;
    color: var(--dark-color);
    margin: 0 4px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.page-link:hover {
    background-color: var(--primary-color);
    color: white;
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* 警告框样式 */
.alert {
    border: none;
    border-radius: 8px;
    padding: 15px 20px;
}

/* 进度条样式 */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e9ecef;
}

.progress-bar {
    border-radius: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* 模态框样式 */
.modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* 文件上传区域 */
.file-upload-area {
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.05);
}

.file-upload-area.dragover {
    border-color: var(--secondary-color);
    background-color: rgba(46, 204, 113, 0.1);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .card {
        margin-bottom: 20px;
    }
    
    .table-responsive {
        border: none;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* 加载动画 */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}