:root {
            --primary: #4361ee;
            --success: #06d6a0;
            --danger: #ef476f;
            --light: #f8f9fa;
            --dark: #212529;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            background-color: #f4f6f9;
            color: var(--dark);
            padding: 15px;
            margin: 0 auto;
        }

        .container {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
        }

        h1 {
            color: var(--primary);
            text-align: center;
            margin-bottom: 0px;
            font-size: 2.2rem;
        }

        h2 {
            color: var(--primary);
            margin: 25px 0 15px;
            font-size: 1.4rem;
        }

        .alert {
            padding: 3px;
            margin: 4px 0;
            border-radius: 8px;
            font-size: 0.95rem;
            border: 1px solid transparent;
        }

        .success {
            background-color: #e6fffa;
            border-color: #b8f3e6;
            color: #0c6b58;
            display: flex;
            justify-content: center;
        }
        
        .success2 {
            background-color: #e6fffa;
            border-color: #b8f3e6;
            color: #0c6b58;
            display: flex;
            justify-content: center;
        }

        .error {
            background-color: #fff0f0;
            border-color: #ffd6d6;
            color: #dc3545;
        }

        .form-group {
            margin-bottom: 15px;
        }

        input, select {
            width: 100%;
            padding: 12px;
            margin: 8px 0;
            border: 1px solid #58a7f7;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
            animation: rainbow-border 3s infinite linear;

        }

        input:focus, select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
        }

        .btn {
            padding: 10px 20px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2em;
        }

        .btn-primary {
            background: var(--primary);
            color: white;
        }

        .btn-primary:hover {
            background: #3650c7;
        }

        .btn-danger {
            background: var(--danger);
            color: white;
        }

        .btn-danger:hover {
            background: #d2334d;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            margin: 5px 0;
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 1px 10px rgba(0, 0, 0, 0.05);
        }
        
        thead tr {
            height: 20px; /* 直接控制行高 */
            
        }

        th, td {
            padding: 2px;
            text-align: left;
            border-bottom: 1px solid #dee2e6;
            font-size: 0.75rem;
            line-height: 3px; /* 与行高一致 */
            padding: 0 0px; /* 可选，控制文字与边框间距 */
            justify-content: center;
            
        }

        th {
            background: #f8f9fa;
            font-weight: 600;
        }

        .mobile-hidden {
            display: none;
        }

        @media (min-width: 768px) {
            .mobile-hidden {
                display: table-cell;
            }
            h1 {
                font-size: 2.5rem;
            }
            .btn {
                padding: 12px 25px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.2rem;
            }
            th, td {
                padding: 5px;
                font-size: 0.9rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        
        /* 现代简约风格 */
.top-employees {
    margin: 1rem;
    font-family: 'Segoe UI', system-ui;
}

.ranking-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    overflow: hidden;
}

.ranking-item {
    display: flex;
    align-items: center;
    padding: 1.2rem;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.ranking-item:last-child {
    border-bottom: none;
}

.rank-badge {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #4a90e2;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 1rem;
    box-shadow: 0 2px 4px rgba(74,144,226,0.2);
}

.employee-info {
    flex: 1;
    padding: 0px 0px 0px 15%;
}

.employee-name {
    font-weight: 600;
    color: #2d3436;
    margin-bottom: 4px;
}

.duration {
    font-size: 0.9em;
    color: #636e72;
    display: flex;
    align-items: center;
    gap: 6px;
}

.duration::before {
    content: "⏱";
    font-size: 0.9em;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .rank-badge {
        width: 50%;
        height: 36px;
        font-size: 1.4em;
        text-align: center; /* 水平居中 */
    }
    
    .ranking-item {
        padding: 0.5rem;
    }
}

/* 悬停效果 */
.ranking-item:hover {
    transform: translateY(-2px);
    transition: all 0.2s ease;
    background: rgba(255,255,255,0.6);
}

/* 无数据提示样式 */
.no-data-v2 {
    text-align: center;
    padding: 2rem;
    color: #74b9ff;
    background: rgba(116,185,255,0.1);
    border-radius: 12px;
    margin: 1rem 0;
}

      .parent-container4 {
      background: #f9ad00;
    border-radius: 7px;
    text-align: center;
    color: #fff;
  }
    .dbxs {
        background: #0f7cff;
    color: #fff;
    padding: 0px 5px 0px 3px;
    border-radius: 5px;
    margin: 0px 10px 0 0;
    }
    .blink { animation: blinker 1.5s linear infinite; }
  .parent-container {
    text-align: center; /* 水平居中 */
    background: #0575E6;  /* fallback for old browsers */
background: -webkit-linear-gradient(to right, #021B79, #0575E6);  /* Chrome 10-25, Safari 5.1-6 */
background: linear-gradient(to right, #021B79, #0575E6); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    color: #ffffff;
    border-radius: 0px 0px 20px 20px;
  }
    .parent-container3 {
    text-align: center; /* 水平居中 */
    background: #0575E6;  /* fallback for old browsers */
background: -webkit-linear-gradient(to right, #021B79, #0575E6);  /* Chrome 10-25, Safari 5.1-6 */
background: linear-gradient(to right, #021B79, #0575E6); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */

    color: #ffffff;
    border-radius: 20px 20px 0px 0px;
  }
  .parent-container2 {
background: #0575E6;  /* fallback for old browsers */
background: -webkit-linear-gradient(to right, #021B79, #0575E6);  /* Chrome 10-25, Safari 5.1-6 */
background: linear-gradient(to right, #021B79, #0575E6); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */

  }
  
      @media (max-width: 768px) {
        th, td {
            display: block;
            width: 100%;
            box-sizing: border-box;
            text-align: left;
            padding: 10px 0;
        }
        th {
            background: #f8f9fa;
            font-weight: bold;
        }
        td {
            border-bottom: 1px solid #dee2e6;
            font-weight: 600;
        }
    }
    @keyframes rainbow-border {
        0% { border-color: #ff0000; }
        20% { border-color: #ffd900; }
        40% { border-color: #4dff00; }
        60% { border-color: #00fff2; }
        80% { border-color: #001eff; }
        100% { border-color: #ff00dd; }
      }
      /*预加载动画*/
     /* 全屏加载层样式 */
        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            display: none;
        }
        
        /* 加载动画样式 */
        .loading-spinner {
            width: 80px;
            height: 80px;
            border: 8px solid #f3f3f3;
            border-top: 8px solid #3498db;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }