:root {
            --primary-color: #1890ff;
            --secondary-color: #722ed1;
            --success-color: #52c41a;
            --warning-color: #faad14;
            --danger-color: #f5222d;
            --wechat-green: #07C160;
            --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --card-hover-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }
        
        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: #f8f9fa;
            color: #333;
            padding: 20px;
            display: flex;
            flex-direction: column;
            min-height: 100vh;


            transition: background-color 0.5s ease;
            color: #666;
            background-image: url(https://image-c.weimobwmc.com/ol-6LF2S/9bb7aa145eca429292feb22efcfbffb2.png);
        }
        
        .container-fluid {
            flex: 1;
        }
        
        .dashboard-header {
            margin-bottom: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .data-card {
            transition: all 0.3s ease;
            margin-bottom: 20px;
            border: none;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            overflow: hidden;
            background: white;
            height: 100%;
        }
        
        .data-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-hover-shadow);
        }
        
        .card-header {
            background-color: white;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            font-weight: 600;
            padding: 15px 20px;
        }
        
        .card-body {
            padding: 20px;
        }
        
        .card-value {
            font-size: 28px;
            font-weight: 700;
            margin: 10px 0;
        }
        
        .card-label {
            font-size: 14px;
            color: #666;
            margin-bottom: 5px;
        }
        
        .card-change {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .card-change.positive {
            color: var(--success-color);
        }
        
        .card-change.negative {
            color: var(--danger-color);
        }
        
        .card-change.neutral {
            color: #666;
        }
        
        .trend-container {
            background: white;
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 30px;
            box-shadow: var(--card-shadow);
        }
        
        .table-container {
            background: white;
            border-radius: 12px;
            padding: 20px;
            box-shadow: var(--card-shadow);
            overflow-x: auto;
            margin-bottom: 30px;
        }
        
        #ordersTable {
            width: 100%;
        }
        
        #ordersTable thead th {
            background-color: #f8f9fa;
            font-weight: 600;
            border-bottom-width: 1px;
        }
        
        .badge {
            padding: 5px 10px;
            font-weight: 500;
            border-radius: 4px;
        }
        
        .form-control, .btn {
            border-radius: 8px;
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .date-filter {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .stats-row {
            margin-bottom: 30px;
        }
        

        .page-footer {
            background-color: #f8f9fa;
            padding: 20px 0;
            border-top: 1px solid #eee;
            margin-top: 40px;
            font-size: 13px;
            color: #666;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .footer-links a {
            color: #666;
            text-decoration: none;
            margin-right: 15px;
            transition: color 0.2s;
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
        }
        

        .swal2-container.swal2-top-start {
            padding: 1em 0 0 1em;
        }
        
        .swal2-popup.swal2-toast {
            box-shadow: var(--card-shadow);
            border-radius: 8px;
            padding: 1em 1.5em;
            width: 280px;
        }
        
        @media (max-width: 768px) {
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
            
            .footer-links {
                margin-bottom: 10px;
            }
            
            .dashboard-header h2 {
                font-size: 24px;
            }
            
            .date-filter {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .card-value {
                font-size: 22px;
            }
        }
    .hitokoto-container {
    flex-basis: 100%;
    margin: 15px 0;
    padding: 12px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 8px;
    font-size: clamp(14px, 2vw, 16px); 
    letter-spacing: clamp(0.01em, 0.05vw, 0.1em);
    color: #333;
    position: relative;
    overflow: hidden;
    font-family: "妤蜂綋", "STKaiti", "KaiTi", serif; 
    font-weight: 600; 
    line-height: 1.6; 
}

.hitokoto-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, #1890ff, #722ed1);
}