/* ============================================
   后台管理系统样式 - 标准化CSS体系
   ============================================ */

/* CSS变量 - 后台专用 */
:root {
    --admin-primary: #6366f1;
    --admin-primary-hover: #4f46e5;
    --admin-secondary: #64748b;
    --admin-success: #10b981;
    --admin-warning: #f59e0b;
    --admin-danger: #ef4444;
    --admin-info: #3b82f6;
    
    --admin-bg-page: #f8fafc;
    --admin-bg-card: #ffffff;
    --admin-bg-sidebar: #ffffff;
    --admin-bg-header: #f1f5f9;
    
    --admin-text-primary: #1e293b;
    --admin-text-secondary: #64748b;
    --admin-text-muted: #94a3b8;
    
    --admin-border: #e2e8f0;
    --admin-border-focus: #6366f1;
    
    --admin-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --admin-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
    
    --admin-radius: 8px;
    --admin-radius-lg: 12px;
    
    --admin-spacing: 1rem;
    --admin-spacing-lg: 1.5rem;
}

/* ============================================
   基础布局结构
   ============================================ */

/* 后台面板容器 */
.admin-panel {
    min-height: calc(100vh - 80px);
    padding: var(--admin-spacing-lg);
    background: var(--admin-bg-page);
}

/* 后台侧边栏 */
.admin-sidebar {
    background: var(--admin-bg-sidebar);
    border-right: 1px solid var(--admin-border);
    min-height: calc(100vh - 80px);
    padding: var(--admin-spacing-lg);
    position: sticky;
    top: 80px;
}

.admin-sidebar .sidebar-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--admin-text-primary);
    margin-bottom: var(--admin-spacing-lg);
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--admin-primary);
}

.admin-sidebar .nav-link {
    color: var(--admin-text-secondary);
    padding: 0.75rem 1rem;
    border-radius: var(--admin-radius);
    margin-bottom: 0.25rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admin-sidebar .nav-link:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--admin-primary);
}

.admin-sidebar .nav-link.active {
    background: var(--admin-primary);
    color: #ffffff;
    font-weight: 500;
}

/* 后台内容区域 */
.admin-content {
    padding: var(--admin-spacing-lg);
    background: var(--admin-bg-page);
}

/* ============================================
   页面标题区域
   ============================================ */

.admin-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--admin-spacing-lg);
    padding-bottom: var(--admin-spacing);
    border-bottom: 1px solid var(--admin-border);
    flex-wrap: wrap;
    gap: 1rem;
}

.admin-page-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--admin-text-primary);
    margin: 0;
}

.admin-page-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ============================================
   卡片组件
   ============================================ */

.admin-card {
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-lg);
    margin-bottom: var(--admin-spacing-lg);
    overflow: hidden;
}

.admin-card-header {
    background: var(--admin-bg-header);
    border-bottom: 1px solid var(--admin-border);
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.admin-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--admin-text-primary);
    margin: 0;
}

.admin-card-body {
    padding: 1.25rem;
}

.admin-card-footer {
    background: var(--admin-bg-header);
    border-top: 1px solid var(--admin-border);
    padding: 1rem 1.25rem;
}

/* ============================================
   表格样式
   ============================================ */

.admin-table {
    width: 100%;
    margin-bottom: 0;
}

.admin-table th {
    background: var(--admin-bg-header);
    color: var(--admin-text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--admin-border);
    white-space: nowrap;
}

.admin-table td {
    white-space: nowrap;
    padding: 0.3rem 0.5rem;
   /** border-bottom: 1px solid var(--admin-border); **/
    color: var(--admin-text-primary);
    vertical-align: middle;
}

.admin-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

/* 操作列 - 关键优化 */
.admin-table .action-cell {
    display: flex;
    gap: 0.5rem;
    /*flex-wrap: wrap;*/
    align-items: center;
    justify-content: flex-start;
    min-width: 150px;
}

.admin-table .action-cell .btn {
    flex-shrink: 0;
}

/* ============================================
   按钮系统 - 标准化
   ============================================ */

/* 基础按钮 */
.btn-admin {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--admin-radius);
    transition: all 0.2s ease;
    white-space: nowrap;
    cursor: pointer;
}

/* 按钮尺寸 */
.btn-admin-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

.btn-admin-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* 按钮颜色 */
.btn-admin-primary {
    background: var(--admin-primary);
    color: #ffffff;
    border: 1px solid var(--admin-primary);
}

.btn-admin-primary:hover {
    background: var(--admin-primary-hover);
    border-color: var(--admin-primary-hover);
}

.btn-admin-secondary {
    background: var(--admin-secondary);
    color: #ffffff;
    border: 1px solid var(--admin-secondary);
}

.btn-admin-secondary:hover {
    background: #475569;
}

.btn-admin-success {
    background: var(--admin-success);
    color: #ffffff;
    border: 1px solid var(--admin-success);
}

.btn-admin-success:hover {
    background: #059669;
}

.btn-admin-warning {
    background: var(--admin-warning);
    color: #ffffff;
    border: 1px solid var(--admin-warning);
}

.btn-admin-warning:hover {
    background: #d97706;
}

.btn-admin-danger {
    background: var(--admin-danger);
    color: #ffffff;
    border: 1px solid var(--admin-danger);
}

.btn-admin-danger:hover {
    background: #dc2626;
}

/* 轮廓按钮 */
.btn-admin-outline-primary {
    background: transparent;
    color: var(--admin-primary);
    border: 1px solid var(--admin-primary);
}

.btn-admin-outline-primary:hover {
    background: var(--admin-primary);
    color: #ffffff;
}

.btn-admin-outline-secondary {
    background: transparent;
    color: var(--admin-secondary);
    border: 1px solid var(--admin-secondary);
}

.btn-admin-outline-secondary:hover {
    background: var(--admin-secondary);
    color: #ffffff;
}

/* ============================================
   按钮组 - 防止溢出
   ============================================ */

.admin-btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.admin-btn-group-vertical {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* 快捷操作区域 */
.admin-quick-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding: 1rem;
    background: var(--admin-bg-header);
    border-radius: var(--admin-radius);
    margin-bottom: var(--admin-spacing);
}

/* ============================================
   表单元素
   ============================================ */

.admin-form-group {
    margin-bottom: var(--admin-spacing);
}

.admin-form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--admin-text-primary);
    margin-bottom: 0.5rem;
}

.admin-form-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    transition: border-color 0.2s ease;
}

.admin-form-input:focus {
    outline: none;
    border-color: var(--admin-border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}


.form-check .form-check-input {
    float: left;
    /* margin-left: -1.5em; */
}

/* 开关按钮 */
.admin-switch {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--admin-bg-card);
    border-radius: var(--admin-radius);
    margin-bottom: 0.5rem;
}

.admin-switch:hover {
    background: var(--admin-bg-header);
}

.admin-switch-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 0.5rem;
}

.admin-switch-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-weight: 500;
}

.admin-switch-status.on {
    background: rgba(16, 185, 129, 0.1);
    color: var(--admin-success);
}

.admin-switch-status.off {
    background: rgba(239, 68, 68, 0.1);
    color: var(--admin-danger);
}

/* ============================================
   状态统计卡片
   ============================================ */

.admin-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-bottom: var(--admin-spacing-lg);
}

.admin-stat-card {
    text-align: center;
    padding: 1rem;
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
}

.admin-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--admin-primary);
    margin-bottom: 0.25rem;
}

.admin-stat-label {
    font-size: 0.75rem;
    color: var(--admin-text-secondary);
}

/* ============================================
   分页组件
   ============================================ */

.admin-pagination {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    padding: 1rem;
}

.admin-pagination .page-item {
    list-style: none;
}

.admin-pagination .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0.5rem;
    font-size: 0.875rem;
    color: var(--admin-text-secondary);
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    transition: all 0.2s ease;
}

.admin-pagination .page-link:hover {
    background: var(--admin-bg-header);
    border-color: var(--admin-primary);
    color: var(--admin-primary);
}

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

/* ============================================
   状态徽章
   ============================================ */

.admin-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 12px;
}

.admin-badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--admin-success);
}

.admin-badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--admin-warning);
}

.admin-badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--admin-danger);
}

.admin-badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--admin-info);
}

.admin-badge-secondary {
    background: rgba(100, 116, 139, 0.1);
    color: var(--admin-secondary);
}

/* ============================================
   提示信息
   ============================================ */

.admin-alert {
    padding: 1rem;
    border-radius: var(--admin-radius);
    margin-bottom: var(--admin-spacing);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.admin-alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--admin-info);
}

.admin-alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--admin-success);
}

.admin-alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: var(--admin-warning);
}

.admin-alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--admin-danger);
}

a {
    color: rgba(var(--bs-link-color-rgb), var(--bs-link-opacity, 1));
    text-decoration: none;
}

.form-switch {
    padding-left: 0;
}

/* ============================================
   响应式布局
   ============================================ */

/* 平板设备 */
@media (max-width: 992px) {
    .admin-sidebar {
        position: static;
        min-height: auto;
        margin-bottom: var(--admin-spacing-lg);
    }
    
    .admin-page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .admin-table .action-cell {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .admin-btn-group {
        flex-wrap: wrap;
    }
}

/* 移动设备 */
@media (max-width: 768px) {
    .admin-panel {
        padding: var(--admin-spacing);
    }
    
    .admin-content {
        padding: var(--admin-spacing);
    }
    
    .admin-page-title {
        font-size: 1.25rem;
    }
    
    .admin-card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .admin-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .admin-table .action-cell {
        min-width: 100px;
    }
    
    .admin-quick-actions {
        flex-direction: column;
    }
    
    .admin-quick-actions .btn {
        width: 100%;
    }
    
    .admin-stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .col-lg-6 {
        flex: 0 0 auto;
        width: 100%;
    }
}

/* 小屏幕 */
@media (max-width: 576px) {
    .admin-table .action-cell {
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .admin-table .action-cell .btn {
        width: 100%;
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
    
    .admin-stats-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   工具类
   ============================================ */

/* 文本截断 */
.text-truncate-admin {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

/* 滚动容器 */
.scroll-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* 骨架屏 */
.skeleton {
    background: linear-gradient(90deg, var(--admin-bg-header) 25%, var(--admin-bg-card) 50%, var(--admin-bg-header) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* 加载状态 */
.loading-spinner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--admin-border);
    border-top-color: var(--admin-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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