/* 自定义样式 */
body {
    background-color: #f8f9fa;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.container-fluid {
    padding: 20px;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border: 1px solid rgba(0, 0, 0, 0.125);
    margin-bottom: 1rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    padding: 0.75rem 1.25rem;
}

.card-title {
    margin-bottom: 0;
    color: #495057;
    font-weight: 600;
}

.card-tools {
    float: right;
}

.table th {
    background-color: #f8f9fa;
    border-top: none;
    font-weight: 600;
    color: #495057;
}

.table td {
    vertical-align: middle;
}

.btn {
    border-radius: 0.25rem;
    font-weight: 500;
}

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

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

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

.btn-secondary:hover {
    background-color: #545b62;
    border-color: #545b62;
}

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

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
}

.form-control:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-group label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
}

.text-danger {
    color: #dc3545 !important;
}

.pagination {
    margin-bottom: 0;
}

.page-link {
    color: #007bff;
    background-color: #fff;
    border: 1px solid #dee2e6;
}

.page-link:hover {
    color: #0056b3;
    text-decoration: none;
    background-color: #e9ecef;
    border-color: #dee2e6;
}

.page-item.active .page-link {
    background-color: #007bff;
    border-color: #007bff;
}

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

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

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.table-hover tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.1);
}

.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 80%;
    color: #dc3545;
}

.alert {
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}

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

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

/* 图标修复样式 */
.fas, .fa {
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
    vertical-align: middle;
}

.btn .fas, .btn .fa {
    margin-right: 0.25rem;
    font-size: 0.875em;
}

/* 确保按钮内容垂直居中 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}

/* 搜索按钮间距 */
.input-group-append {
    margin-left: 10px;
}

.input-group-append .btn {
    border-radius: 0.25rem;
}