/* 自定义样式 */
body {
    background-color: #f8f9fa;
}

.navbar-brand {
    font-weight: bold;
}

.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border-radius: 0.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #dee2e6;
    font-weight: 600;
}

.list-group-item {
    border: none;
    border-radius: 0;
    padding: 0.75rem 1rem;
}

.list-group-item:first-child {
    border-top-left-radius: 0.5rem;
    border-top-right-radius: 0.5rem;
}

.list-group-item:last-child {
    border-bottom-left-radius: 0.5rem;
    border-bottom-right-radius: 0.5rem;
}

.list-group-item.active {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

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

.table td {
    vertical-align: middle;
}

.btn-group-sm > .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.badge {
    font-size: 0.75em;
}

.progress {
    height: 1.5rem;
    border-radius: 0.375rem;
}

.progress-bar {
    line-height: 1.5rem;
    font-size: 0.875rem;
}

.modal-content {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    padding: 1rem 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    padding: 1rem 1.5rem;
}

.form-control:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.alert {
    border: none;
    border-radius: 0.5rem;
}

.alert-dismissible .btn-close {
    padding: 0.75rem 1rem;
}

/* 统计卡片样式 */
.card.bg-primary,
.card.bg-success,
.card.bg-info,
.card.bg-warning {
    border: none;
}

.card.bg-primary .card-title,
.card.bg-success .card-title,
.card.bg-info .card-title,
.card.bg-warning .card-title {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.card.bg-primary .card-text,
.card.bg-success .card-text,
.card.bg-info .card-text,
.card.bg-warning .card-text {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .btn-group-sm > .btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
    }
}

/* 动画效果 */
.card {
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.btn {
    transition: all 0.2s ease-in-out;
}

.btn:hover {
    transform: translateY(-1px);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

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

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