/* 固定床反应器工具集全局样式表 */

:root {
    /* 主色调 - 更新配色方案为现代化风格 */
    --primary-color: #6366F1;        /* 更鲜艳的靛蓝色 */
    --secondary-color: #1E293B;      /* 深蓝灰色 */
    --bg-color: #F8FAFC;             /* 淡灰色背景 */
    --input-bg: #FFFFFF;             /* 输入框背景 */
    --accent-color: #F472B6;         /* 柔和的粉紫色 */
    --accent-light: #FDF4FF;         /* 超浅粉色背景 */
    
    /* 按钮颜色 - 更新为现代渐变色 */
    --button-primary: linear-gradient(135deg, #6366F1, #818CF8);
    --button-secondary: linear-gradient(135deg, #F472B6, #FB7185);
    --button-reset: linear-gradient(135deg, #94A3B8, #CBD5E1);
    
    /* 功能色 */
    --result-bg: #FFFFFF;
    --border-color: #E2E8F0;
    --error-color: #EF4444;
    --success-color: #10B981;
    
    /* 字体大小 */
    --font-large: 2.5rem;
    --font-medium: 1.8rem;
    --font-small: 1.4rem;
    --font-normal: 1rem;
    --font-small-text: 0.9rem;
    
    /* 圆角 */
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --border-radius-sm: 8px;
    
    /* 阴影 */
    --box-shadow: 0 10px 20px -3px rgba(99, 102, 241, 0.05), 0 4px 6px -4px rgba(99, 102, 241, 0.1);
    --hover-shadow: 0 20px 25px -5px rgba(99, 102, 241, 0.1), 0 8px 10px -6px rgba(99, 102, 241, 0.1);
    --card-shadow: 0 0 25px rgba(99, 102, 241, 0.08);
}

/* 基础重置与排版 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--secondary-color);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 标题样式 */
h1 {
    color: var(--primary-color);
    font-size: var(--font-large);
    margin: 20px 0;
    font-weight: 800;
    letter-spacing: -0.5px;
    text-align: center;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    color: var(--secondary-color);
    font-size: var(--font-small);
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: -0.3px;
    opacity: 0.85;
}

h3 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: var(--font-medium);
    font-weight: 700;
    letter-spacing: -0.3px;
    position: relative;
    display: inline-block;
}

h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 3px;
}

h4 {
    color: var(--secondary-color);
    margin: 20px 0;
    font-size: 1.3em;
    font-weight: 600;
    letter-spacing: -0.2px;
}

/* 头部区域 */
header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    padding: 40px 0;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px -10px rgba(79, 70, 229, 0.1);
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.03) 0%, rgba(236, 72, 153, 0.03) 50%, transparent 70%);
    animation: rotate 60s linear infinite;
    z-index: 0;
}

.header-line {
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    margin: 20px auto;
    max-width: 150px;
    border-radius: 4px;
}

.back-link {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
    z-index: 1;
}

.back-link::before {
    content: '←';
    font-size: 1.2em;
}

.back-link:hover {
    background-color: rgba(255, 255, 255, 0.8);
    box-shadow: var(--box-shadow);
    transform: translateY(-50%) scale(1.05);
}

/* 输入部分 */
.input-section {
    background-color: var(--result-bg);
    border-radius: var(--border-radius-lg);
    padding: 35px;
    margin-bottom: 35px;
    box-shadow: var(--card-shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.5);
    backdrop-filter: blur(10px);
}

.input-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--button-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.input-section:hover {
    box-shadow: var(--hover-shadow);
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.1);
}

.input-section:hover::before {
    opacity: 1;
}

.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.input-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    margin-bottom: 15px;
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: var(--font-normal);
    display: flex;
    align-items: center;
    gap: 5px;
    opacity: 0.9;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-normal);
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

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

.input-group input:hover,
.input-group select:hover {
    border-color: var(--primary-color);
}

.input-group input:invalid {
    /* 彻底移除无效输入的红色边框 */
    border-color: var(--border-color) !important;
    box-shadow: none !important;
    outline: none !important;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: var(--font-normal);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 统一按钮风格别名 */
.btn-primary {
    background: var(--button-primary);
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px -1px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: var(--button-secondary);
    color: white;
}
.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(236, 72, 153, 0.3);
}

.btn-reset {
    background: var(--button-reset);
    color: white;
}
.btn-reset:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(107, 114, 128, 0.3);
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn:hover::after {
    opacity: 1;
}

.calc-btn {
    background: var(--button-primary);
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.calc-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px -1px rgba(99, 102, 241, 0.3);
}

.clear-btn {
    background: var(--button-secondary);
    color: white;
}

.clear-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(236, 72, 153, 0.3);
}

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

.reset-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(107, 114, 128, 0.3);
}

/* 修改结果布局为单栏 */
.results-wrapper {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.result-card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.8);
    animation: fadeIn 0.5s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
    max-width: 100%;
    margin-bottom: 5px;
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0.8;
}

.result-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.result-card .section-header {
    border-bottom: 2px solid rgba(226, 232, 240, 0.8);
    padding-bottom: 12px;
    margin-bottom: 20px;
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    font-weight: 600;
}

.section-icon {
    margin-right: 10px;
    font-size: 1.2em;
}

.section-title {
    font-size: 1.1em;
    color: var(--secondary-color);
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
    table-layout: fixed;
    text-align: center;
}

.results-table th {
    background-color: rgba(79, 70, 229, 0.08);
    color: var(--primary-color);
    font-weight: 600;
    text-align: center;
    padding: 15px;
}

.results-table td {
    padding: 15px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    text-align: center;
}

.results-table tr:last-child td {
    border-bottom: none;
}

.results-table tr:hover td {
    background-color: rgba(243, 244, 246, 0.5);
}

/* 结果值样式 */
.value-column {
    text-align: center;
    font-weight: 500;
    white-space: nowrap;
}

.value-with-unit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
}

.value-number {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.05em;
}

.value-unit {
    font-size: 0.85em;
    color: #666;
    white-space: nowrap;
}

.percentage {
    font-size: 0.8em;
    color: #666;
    white-space: nowrap;
    margin-left: 5px;
}

/* 结果徽章 */
.result-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.75em;
    font-weight: bold;
    margin-left: 8px;
    white-space: nowrap;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.min-badge {
    background-color: rgba(56, 189, 248, 0.15);
    color: rgb(14, 165, 233);
}

.max-badge {
    background-color: rgba(249, 115, 22, 0.15);
    color: rgb(234, 88, 12);
}

/* 图表样式增强 */
.result-chart {
    margin-top: 25px;
    padding: 20px;
    background-color: rgba(243, 244, 246, 0.5);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.chart-title {
    font-weight: 600;
    margin-bottom: 15px;
    text-align: center;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 10px;
}

.chart-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.chart-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
}

.chart-label {
    width: 25%;
    font-size: 0.9em;
    font-weight: 500;
    text-align: center;
    color: var(--secondary-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chart-bar-container {
    flex: 1;
    height: 32px;
    background-color: rgba(226, 232, 240, 0.5);
    border-radius: 16px;
    overflow: hidden;
    position: relative;
}

.chart-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 14px;
    padding: 0 15px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    position: relative;
    transition: width 1.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.min-bar {
    background: linear-gradient(90deg, #0EA5E9, #38BDF8);
}

.max-bar {
    background: linear-gradient(90deg, #EA580C, #F97316);
}

.bar-value {
    color: white;
    font-weight: 600;
    font-size: 0.85em;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.equation-name {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.info-link {
    font-size: 0.9em;
    color: var(--primary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.2s ease;
}

.info-link:hover {
    color: var(--accent-color);
    transform: scale(1.1);
}

/* 计算完成消息 */
.completion-message {
    text-align: center;
    padding: 20px;
    margin-top: 25px;
    background: linear-gradient(90deg, rgba(79, 70, 229, 0.1), rgba(236, 72, 153, 0.1));
    border-radius: 12px;
    font-weight: 600;
    color: var(--primary-color);
    animation: fadeInPulse 2s forwards;
    font-size: 1.1em;
}

@keyframes fadeInPulse {
    0% { 
        opacity: 0; 
        transform: translateY(20px);
    }
    70% { 
        opacity: 1; 
        transform: translateY(0);
    }
    85% { 
        opacity: 0.9;
    }
    100% { 
        opacity: 1;
    }
}

/* 结果文本样式 */
.result-text {
    line-height: 1.8;
    color: var(--secondary-color);
}

/* 增强响应式设计 */
@media (max-width: 768px) {
    .results-wrapper {
        gap: 20px;
    }
    
    .result-card {
        padding: 15px;
    }
    
    .chart-label {
        width: 40%;
    }
    
    .results-table th,
    .results-table td {
        padding: 10px;
    }
    
    .results-section h3 {
        font-size: 1.3em;
    }
    
    .section-header {
        margin-bottom: 12px;
        padding-bottom: 8px;
    }
    
    .section-title {
        font-size: 1em;
    }
    
    .chart-bar {
        padding: 0 10px;
    }
    
    .bar-value {
        font-size: 0.8em;
    }
    
    .result-chart {
        padding: 15px;
    }
}

@media (max-width: 500px) {
    .chart-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
        margin-bottom: 20px;
    }
    
    .chart-label {
        width: 100%;
        text-align: left;
        margin-bottom: 5px;
    }
    
    .results-table {
        font-size: 0.9em;
    }
    
    .value-number {
        font-size: 0.95em;
    }
    
    .value-unit {
        font-size: 0.8em;
    }
    
    .completion-message {
        font-size: 0.95em;
        padding: 15px;
    }
    
    .result-badge {
        font-size: 0.7em;
        padding: 2px 6px;
    }
}

/* 标签页 */
.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.tab-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    padding: 12px 24px;
    margin: 0 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
    color: var(--secondary-color);
    font-size: 1.1em;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

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

.tab-content {
    display: none;
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.tab-content.active {
    display: block;
}

/* 输入区域 */
.input-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: space-between;
}

.input-column {
    flex: 1;
    min-width: 300px;
    margin-bottom: 20px;
}

/* 提示工具 */
.input-group .tooltip {
    position: relative;
    display: inline-block;
}

.input-group .tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px;
    background: rgba(44, 62, 80, 0.9);
    color: white;
    border-radius: 4px;
    font-size: var(--font-small-text);
    white-space: nowrap;
    z-index: 1;
}

/* 方程和关联式部分 */
.equations-section,
.correlation-section {
    margin-bottom: 30px;
}

.equation-list,
.correlation-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.correlation-list {
    flex-direction: row;
    flex-wrap: wrap;
}

.correlation-group {
    flex: 1;
    min-width: 300px;
}

.equation-item,
.correlation-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background-color: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 8px;
}

.equation-item:hover,
.correlation-item:hover {
    border-color: var(--primary-color);
    background-color: rgba(74, 144, 226, 0.05);
}

.equation-item input[type="checkbox"],
.correlation-item input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
}

.equation-item span,
.correlation-item span {
    font-weight: bold;
    margin-right: 10px;
}

.equation-item small {
    color: #666;
    font-size: var(--font-small-text);
    margin-right: 10px;
}

.equation-item .equation-info {
    margin-left: auto;
}

.correlation-item .correlation-info,
.correlation-item .info-link,
.equation-item .info-link {
    margin-left: auto;
}

/* 按钮区域 */
.buttons-section {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 加载状态 */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: rotate 0.8s linear infinite;
}

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

/* 结果表格 */
.value-column {
    text-align: center;
    font-weight: 500;
    white-space: nowrap;
}

/* 结果徽章 */
.result-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.9em;
    font-weight: bold;
    margin-left: 8px;
}

.min-badge {
    background-color: #E3F2FD;
    color: #1976D2;
}

.max-badge {
    background-color: #FCE4EC;
    color: #D81B60;
}

/* 结果图表 */
.chart-title {
    font-size: 1.1em;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--secondary-color);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chart-row {
    display: flex;
    align-items: center;
    gap: 15px;
}

.chart-label {
    width: 200px;
    font-size: 0.95em;
    color: var(--secondary-color);
    font-weight: 500;
}

.chart-bar-container {
    flex-grow: 1;
    height: 24px;
    background-color: #f0f0f0;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.bar-value {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: white;
    font-weight: bold;
    font-size: 0.9em;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* 值与单位 */
.value-with-unit {
    display: inline-flex;
    align-items: baseline;
    font-weight: 500;
}

.value-number {
    font-size: 1.1em;
    color: var(--secondary-color);
}

.value-unit {
    font-size: 0.85em;
    margin-left: 3px;
    color: #666;
}

/* 完成消息 */
.completion-message {
    text-align: center;
    margin: 30px 0;
    padding: 15px;
    background-color: #EBF7ED;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--success-color);
    color: var(--secondary-color);
    font-weight: 500;
    animation: fade-in 0.5s forwards;
}

@keyframes fade-in {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

/* 确保模态框在激活时居中显示 */
.modal[style*="display: block"] {
    display: flex !important;
}

.modal-content {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5em;
    color: #999;
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--error-color);
}

/* 公式详情 */
.formula-detail {
    padding: 20px 0;
}

.formula-detail h4 {
    color: var(--primary-color);
    margin: 20px 0 10px;
    font-size: 1.3em;
}

.formula-section {
    margin-bottom: 25px;
    padding: 15px;
    border-radius: var(--border-radius);
    background-color: var(--bg-color);
}

.section-icon {
    margin-right: 8px;
    color: var(--primary-color);
}

.formula-math {
    margin: 20px 0;
    padding: 15px;
    background-color: white;
    border-radius: var(--border-radius);
    overflow-x: auto;
    text-align: center;
    border: 1px solid var(--border-color);
}

/* 参数表格 */
.param-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

.param-table th, .param-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.param-table th {
    background-color: rgba(74, 144, 226, 0.1);
    font-weight: 600;
}

.symbol-cell {
    font-weight: 500;
    white-space: nowrap;
}

.symbol-cell em {
    font-style: italic;
}

.symbol-cell sub {
    font-size: 0.7em;
}

/* 理论内容 */
.theory-content {
    margin-top: 20px;
}

.theory-card {
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    position: relative;
    box-shadow: var(--box-shadow);
}

.theory-card p {
    margin-bottom: 10px;
}

.theory-card ul, .theory-card ol {
    margin-left: 20px;
}

.theory-card li {
    margin-bottom: 5px;
}

/* 适用条件 */
.applicability-conditions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 15px 0;
}

.condition-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    background-color: white;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.condition-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.condition-icon {
    margin-right: 12px;
    color: var(--primary-color);
    font-size: 1.2em;
}

.condition-text {
    font-size: 0.95em;
    color: var(--secondary-color);
}

/* 信息链接 */
.info-link {
    color: var(--primary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9em;
    border-bottom: 1px dotted var(--primary-color);
    padding-bottom: 2px;
    transition: all 0.3s ease;
}

.info-link:hover {
    color: #2980b9;
    border-bottom-color: #2980b9;
}

/* 页脚 */
footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
    color: var(--secondary-color);
    font-size: 0.9em;
    border-top: 1px solid var(--border-color);
}

/* 数学公式相关样式 */
.formula-math .MathJax {
    font-size: 1.1em !important;
    margin: 15px 0;
    overflow-x: auto;
    max-width: 100%;
}

.MathJax_Display {
    overflow-x: auto;
    max-width: 100%;
}

.mjx-chtml {
    display: inline-block;
    line-height: 0;
    text-indent: 0;
    text-align: left;
    text-transform: none;
    font-style: normal;
    font-weight: normal;
    font-size: 100%;
    font-size-adjust: none;
    letter-spacing: normal;
    word-wrap: normal;
    direction: ltr;
}

.mjx-math {
    display: inline-block;
    border-collapse: separate;
    border-spacing: 0;
}

.mjx-char {
    display: inline-block;
    white-space: pre;
}

.mjx-mrow, .mjx-msub, .mjx-msup, .mjx-mfrac, .mjx-msubsup, .mjx-mtable, .mjx-mtd {
    position: relative;
}

mjx-container {
    display: inline-block;
    text-align: center;
    line-height: 0;
}

mjx-container mjx-math {
    display: inline-block;
    border-collapse: separate;
    border-spacing: 0;
}

.MJX-TEX * {
    font-size: inherit;
    line-height: inherit;
}

mjx-mi, mjx-mn, mjx-mo, mjx-mtext, mjx-ms {
    display: inline-block;
}

/* 欢迎页面和提示信息样式 */
.welcome-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
    border-radius: 16px;
    margin-bottom: 20px;
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.welcome-message h4 {
    color: var(--primary-color);
    font-size: 1.5em;
    margin-bottom: 15px;
    font-weight: 700;
}

.welcome-message p {
    color: var(--secondary-color);
    font-size: 1.1em;
    line-height: 1.6;
    margin-bottom: 25px;
}

.icon-container {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pulse-animation {
    animation: pulse-icon 2s infinite;
}

@keyframes pulse-icon {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1); opacity: 0.8; }
}

.tips-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: white;
    padding: 15px;
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.tip-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95em;
    color: var(--secondary-color);
}

.tip-item i {
    color: var(--primary-color);
    font-size: 1.1em;
}

/* 改进卡片效果 */
.result-card:nth-child(1) { animation-delay: 0.1s; }
.result-card:nth-child(2) { animation-delay: 0.2s; }
.result-card:nth-child(3) { animation-delay: 0.3s; }
.result-card:nth-child(4) { animation-delay: 0.4s; }
.result-card:nth-child(5) { animation-delay: 0.5s; }

/* 移除图表卡片的跨列设置 */
.chart-card {
    width: 100%;
}

/* 优化统计分析卡片 */
.stats-card {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.03) 0%, rgba(236, 72, 153, 0.03) 100%);
    border: 1px solid rgba(226, 232, 240, 0.9);
}

/* 动画效果 */
.chart-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    animation: shimmer 2s infinite;
    transform: skewX(-20deg);
}

@keyframes shimmer {
    0% { transform: translateX(-100%) skewX(-20deg); }
    100% { transform: translateX(100%) skewX(-20deg); }
}

/* 增强打印体验 */
@media print {
    .tabs, header, footer, .buttons-section {
        display: none !important;
    }
    
    .results-wrapper {
        display: block;
    }
    
    .result-card {
        page-break-inside: avoid;
        margin-bottom: 20px;
        border: 1px solid #ddd;
        box-shadow: none;
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
    
    body {
        background: white;
        padding: 0;
        margin: 0;
        font-size: 12pt;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .chart-bar {
        border: 1px solid #ddd;
        background: #f5f5f5 !important;
        color: #000 !important;
    }
    
    .chart-bar.min-bar, .chart-bar.max-bar {
        background: #eee !important;
    }
    
    .result-chart {
        border: 1px solid #ddd;
        background: white !important;
    }
    
    .section-header {
        border-bottom: 2px solid #000;
    }
    
    .results-table th {
        background-color: #f0f0f0 !important;
        color: #000 !important;
    }
    
    .results-table td {
        border-bottom: 1px solid #ddd;
    }
    
    .value-number {
        color: #000 !important;
    }
    
    .completion-message {
        display: none;
    }
    
    .min-badge, .max-badge {
        border: 1px solid #ddd;
        background: #f5f5f5 !important;
        color: #000 !important;
    }
    
    h3 {
        font-size: 16pt;
        margin-top: 20px;
        border-bottom: 2px solid #000;
        padding-bottom: 10px;
    }
    
    @page {
        margin: 1.5cm;
    }
}

/* 确保表格内容完全居中 */
.results-table tr td:first-child {
    text-align: center;
}

/* 修复第一列表格可能的文本对齐问题 */
.results-table td:first-of-type {
    text-align: center;
}

/* 修复值列的对齐方式 */
.results-table td.value-column {
    text-align: center;
}

/* 修复单元格内所有元素的对齐方式 */
.results-table td * {
    justify-content: center;
    text-align: center;
}