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

/* 修改基础文字颜色为深色海军蓝 */
:root {
    --navy-blue: #1a2b4a;  /* 深色海军蓝 */
    --navy-blue-light: #2c4167;  /* 稍浅的海军蓝，用于悬停效果 */
    --navy-blue-pale: #8491a8;  /* 更浅的海军蓝，用于次要文本 */
    
    /* 苹果系统字体 */
    --font-text: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
    --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
    --font-mono: "SF Mono", SFMono-Regular, ui-monospace, monospace;
}

body {
    font-family: var(--font-text);
    line-height: 1.4;
    color: var(--navy-blue);
    background-color: #f5f5f7;
    padding: 24px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #ffffff;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 24px;
}

h1 {
    font-size: 28px;
    font-weight: 500;
    color: var(--navy-blue);
    margin-bottom: 32px;
    text-align: center;
    letter-spacing: -0.2px;
    font-family: var(--font-display);
}

h2 {
    font-size: 20px;
    font-weight: 500;
    color: var(--navy-blue);
    margin: 12px 0 8px;
    letter-spacing: -0.2px;
    font-family: var(--font-display);
}

.data-input-section,
.visualization-section,
.analysis-section {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    padding: 16px;
    margin-bottom: 16px;
}

button {
    background-color: #0066cc;
    color: #ffffff;
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-text);
}

button:hover {
    background-color: var(--navy-blue-light);
    transform: translateY(-1px);
}

.chart-container {
    width: 100%;
    height: 400px;
    margin: 12px 0;
}

#dataTable, #anovaTable {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 8px 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
    font-family: var(--font-text);
}

#dataTable th,
#anovaTable th {
    background-color: #f5f5f7;
    color: var(--navy-blue);
    font-weight: 500;
    padding: 6px 8px;
    text-align: center;
    border-bottom: 1px solid #e5e5e7;
    font-size: 14px;
}

#dataTable td,
#anovaTable td {
    padding: 4px 8px;
    border-bottom: 1px solid #e5e5e7;
    color: var(--navy-blue);
    text-align: center;
    font-size: 14px;
}

#dataTable input.form-control {
    width: 80px;
    padding: 3px 6px;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
}

#dataTable .delete-row {
    padding: 3px 8px;
    font-size: 12px;
    border-radius: 4px;
}

#dataTable tr:hover {
    background-color: #f8f9fa;
}

#dataTable_wrapper {
    padding-top: 30px;
    margin-top: 8px;
}

.dataTables_paginate {
    margin-top: 12px;
    font-size: 14px;
}

.dataTables_info {
    font-size: 14px;
    margin: 12px 0;
}

.delete-row {
    background-color: #ff4444;
    color: white;
    padding: 5px 10px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

.delete-row:hover {
    background-color: #cc0000;
}

.form-control {
    border: 1px solid #d2d2d7;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--navy-blue);
    transition: all 0.2s ease;
    font-family: var(--font-text);
}

.form-control:focus {
    border-color: var(--navy-blue);
    box-shadow: 0 0 0 3px rgba(26, 43, 74, 0.1);
    outline: none;
}

#dataTable input[type="number"] {
    -moz-appearance: textfield;
}

#dataTable input[type="number"]::-webkit-outer-spin-button,
#dataTable input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#anovaTable .variance-components td {
    text-align: left;
    padding: 15px;
    background-color: #f9f9f9;
    line-height: 2.2;
    font-size: 15px;
    color: var(--navy-blue);
}

#anovaTable .variance-components strong {
    display: block;
    margin-bottom: 12px;
    color: var(--navy-blue);
    font-size: 16px;
}

#anovaTable .variance-components tr:last-child strong {
    font-size: 18px;
    color: #1976D2;
    margin-bottom: 15px;
}

#anovaTable .variance-components tr:last-child {
    font-size: 30px;
    line-height: 1.8;
    padding: 20px;
    background-color: #f0f7ff;
}

#anovaTable .variance-components sub {
    font-size: 12px;
    margin-left: 1px;
}

#anovaTable .variance-components .cv-results {
    font-size: 30px;
    line-height: 1.6;
    padding: 10px 15px;
    margin-top: 5px;
    background-color: #f0f7ff;
    border-radius: 4px;
    color: var(--navy-blue);
}

#anovaTable .variance-components .cv-results .cv-label {
    font-size: 24px;
}

#anovaTable .variance-components tr:last-child strong {
    margin-bottom: 8px;
    color: #000080;
    display: inline-block;
}

.generate-data-container {
    background-color: #f5f5f7;
    border-radius: 10px;
    padding: 8px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.range-inputs {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: #ffffff;
    padding: 8px 12px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    flex: 1;
}

.range-inputs label {
    color: var(--navy-blue);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-text);
}

.range-inputs input {
    width: 100px;
    padding: 6px 10px;
    border: 1px solid #d2d2d7;
    border-radius: 6px;
    font-size: 14px;
}

.generate-btn {
    background-color: #2196F3;
    color: white;
    padding: 8px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
    height: 36px;
    line-height: 20px;
    white-space: nowrap;
    margin-left: 0;
}

.generate-btn:hover {
    background-color: #1976D2;
}

/* 精密度计算部分的样式 */
.precision-details {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
}

.precision-details h4 {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 500;
    color: var(--navy-blue);
    margin: 12px 0 8px;
    letter-spacing: -0.2px;
}

.precision-details h4 span.en {
    font-family: var(--font-text);
    font-size: 15px;
    color: var(--navy-blue-pale);
    font-weight: 400;
    margin-left: 4px;
}

.precision-details .calculation-steps {
    padding: 0 20px 16px;
}

.precision-details .formula-block {
    background-color: #f5f5f7;
    border-radius: 10px;
    padding: 12px;
    margin: 8px 0;
}

.precision-details .formula {
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--navy-blue);
    line-height: 1.4;
    margin: 4px 0;
    letter-spacing: -0.2px;
}

.precision-details .explanation {
    font-family: var(--font-text);
    font-size: 14px;
    color: var(--navy-blue-pale);
    line-height: 1.3;
    margin: 8px 0 4px;
    padding-left: 12px;
    border-left: 2px solid var(--navy-blue);
}

.precision-details .step {
    background-color: #fafafa;
    border-radius: 10px;
    padding: 12px;
    margin: 8px 0;
}

.precision-details .step p {
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--navy-blue);
    line-height: 1.4;
    margin: 3px 0;
    padding-left: 16px;
    position: relative;
}

.precision-details .step p::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--navy-blue);
}

.precision-details .cv-calculation {
    background-color: #f2f7fd;
    border-radius: 10px;
    padding: 12px;
    margin: 8px 0;
}

.precision-details .cv-calculation p {
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--navy-blue);
    line-height: 1.4;
    margin: 0;
}

.precision-details sub {
    font-size: 12px;
    margin-left: 1px;
    color: inherit;
    font-family: inherit;
}

/* 特殊说明样式 */
.precision-details .note {
    color: #e85d00;
    font-size: 13px;
    font-weight: 500;
    margin: 8px 0;
    font-family: var(--font-text);
}

.precision-details .step .explanation {
    background-color: #fff7ed;
    border-left: 2px solid #e85d00;
    padding: 10px 14px;
    margin: 8px 0;
    font-size: 13px;
    color: #804d00;
}

/* 调整可视化部分的样式 */
.visualization-section {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    padding: 12px;
    margin-bottom: 12px;
}

/* 绘制散点图按钮样式 */
#drawChart {
    background-color: #0066cc;
    padding: 6px 16px;
    margin: 4px 0;
    font-size: 14px;
}

/* 检测结果散点图标题样式 */
.chart-title {
    font-family: var(--font-display);
    font-size: 15px;
    color: var(--navy-blue);
    margin: 8px 0;
    text-align: center;
}