/* DIGI集团案例研究模块专用样式 */
/* 哈佛商学院案例教学法视觉设计 */

:root {
    /* DIGI案例专用色彩系统 */
    --digi-primary: #1a365d;        /* 深蓝 - 代表工业和专业 */
    --digi-secondary: #2d3748;      /* 深灰 - 代表钢铁 */
    --digi-accent: #3182ce;         /* 蓝色 - 代表数字化 */
    --digi-success: #38a169;        /* 绿色 - 代表可持续 */
    --digi-warning: #d69e2e;        /* 橙色 - 代表挑战 */
    --digi-danger: #e53e3e;         /* 红色 - 代表风险 */
    --digi-gold: #ecc94b;          /* 金色 - 代表价值 */
    
    /* 挑战特色色彩 */
    --challenge-ets: #1a365d;       /* 中国碳市场 */
    --challenge-cbam: #2b77ad;      /* 欧盟CBAM */
    --challenge-supply: #38a169;    /* 供应链 */
    
    /* 渐变色 */
    --digi-gradient: linear-gradient(135deg, #1a365d 0%, #3182ce 100%);
    --steel-gradient: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    
    /* 阴影 */
    --digi-shadow: 0 4px 6px rgba(26, 54, 93, 0.1);
    --digi-shadow-lg: 0 10px 25px rgba(26, 54, 93, 0.15);
}

/* DIGI案例幻灯片基础样式 */
.digi-case-slide {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    position: relative;
    overflow-x: hidden;
}

.digi-case-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--digi-gradient);
    z-index: 10;
}

/* 案例研究头部样式 */
.case-study-header {
    position: relative;
    background: var(--digi-gradient);
    color: white;
    padding: 2rem;
    border-radius: 12px 12px 0 0;
    margin: -1rem -1rem 2rem -1rem;
}

.case-study-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

.case-study-badge i {
    margin-right: 0.5rem;
}

/* 执行摘要样式 */
.executive-summary {
    border-left: 4px solid var(--digi-primary);
    background: linear-gradient(135deg, #ebf8ff 0%, #bee3f8 100%);
}

.executive-summary .harvard-callout-content p {
    margin: 0.8rem 0;
    line-height: 1.6;
}

.executive-summary .harvard-callout-content p strong {
    color: var(--digi-primary);
    font-weight: 600;
}

/* 公司档案样式 */
.company-profile {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow-lg);
    overflow: hidden;
    margin: 2rem 0;
}

.company-header {
    background: var(--steel-gradient);
    color: white;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.company-logo {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo-symbol {
    font-size: 3rem;
    background: rgba(255, 255, 255, 0.2);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.company-info h3 {
    font-size: 1.8rem;
    margin: 0 0 0.5rem 0;
    font-weight: 600;
}

.company-tagline {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
    font-style: italic;
}

.company-stats {
    display: flex;
    gap: 2rem;
}

.company-stats .stat-item {
    text-align: center;
}

.company-stats .stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--digi-gold);
}

.company-stats .stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 公司详情网格 */
.company-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 0;
}

.detail-section {
    padding: 1.5rem;
    border-right: 1px solid #e2e8f0;
}

.detail-section:last-child {
    border-right: none;
}

.detail-section h4 {
    color: var(--digi-primary);
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-table {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-row .label {
    font-weight: 500;
    color: #4a5568;
}

.detail-row .value {
    font-weight: 600;
    color: var(--digi-primary);
}

.detail-row .value.danger {
    color: var(--digi-danger);
}

/* 挑战概览样式 */
.challenges-overview {
    margin: 2rem 0;
}

.challenge-timeline {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--digi-shadow);
}

.timeline-header {
    text-align: center;
    margin-bottom: 2rem;
}

.timeline-header h3 {
    color: var(--digi-primary);
    margin: 0 0 0.5rem 0;
}

.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 2rem 0;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 80px;
    top: 50%;
    width: 2px;
    height: 60px;
    background: #e2e8f0;
    transform: translateY(-50%);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-date {
    min-width: 80px;
    padding: 0.8rem 1rem;
    background: var(--digi-primary);
    color: white;
    border-radius: 20px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.timeline-content {
    flex: 1;
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--digi-accent);
}

.timeline-content h4 {
    color: var(--digi-primary);
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.timeline-content p {
    color: #4a5568;
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.timeline-impact {
    min-width: 60px;
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.timeline-item.urgent .timeline-impact {
    background: #fed7d7;
    color: var(--digi-danger);
}

.timeline-item.critical .timeline-impact {
    background: #fef5e7;
    color: var(--digi-warning);
}

.timeline-item.important .timeline-impact {
    background: #c6f6d5;
    color: var(--digi-success);
}

/* 详细挑战卡片 */
.challenges-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.challenge-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.challenge-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--digi-shadow-lg);
}

.challenge-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.challenge-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.challenge-ets .challenge-icon {
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
}

.challenge-cbam .challenge-icon {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
}

.challenge-supply .challenge-icon {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
}

.challenge-header h4 {
    color: var(--digi-primary);
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.challenge-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
}

.challenge-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
}

.metric {
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 0.8rem;
    color: #6b7280;
    margin-bottom: 0.2rem;
}

.metric-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--digi-primary);
}

.metric-value.danger {
    color: var(--digi-danger);
}

.metric-value.warning {
    color: var(--digi-warning);
}

.challenge-details p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.challenge-details strong {
    color: var(--digi-primary);
}

.challenge-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.challenge-details ul li {
    position: relative;
    padding: 0.3rem 0 0.3rem 1.5rem;
    color: #4a5568;
    line-height: 1.5;
}

.challenge-details ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--digi-accent);
    font-weight: bold;
}

/* 决策情境样式 */
.decision-context {
    background: linear-gradient(135deg, #fff5f5 0%, #fed7d7 100%);
    border-left: 4px solid var(--digi-danger);
}

.decision-scenario {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.scenario-text p {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.scenario-text strong {
    color: var(--digi-danger);
}

.stakeholder-pressure h5 {
    color: var(--digi-primary);
    margin: 0 0 1rem 0;
}

.pressure-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.pressure-item {
    background: rgba(255, 255, 255, 0.7);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.pressure-item strong {
    color: var(--digi-primary);
}

/* 学习路径样式 */
.learning-roadmap {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--digi-shadow);
    margin: 2rem 0;
}

.roadmap-intro {
    text-align: center;
    margin-bottom: 2rem;
}

.roadmap-intro p {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.6;
}

.roadmap-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.roadmap-step {
    background: #f8fafc;
    border-radius: 10px;
    padding: 1.5rem;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.roadmap-step:hover {
    border-color: var(--digi-accent);
    transform: translateY(-2px);
    background: white;
}

.step-number {
    position: absolute;
    top: -10px;
    left: 1.5rem;
    background: var(--digi-primary);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
}

.step-content {
    margin-top: 1rem;
}

.step-content h4 {
    color: var(--digi-primary);
    margin: 0 0 0.8rem 0;
    font-size: 1.1rem;
}

.step-content p {
    color: #4a5568;
    line-height: 1.5;
    margin: 0 0 1rem 0;
}

.step-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tool-tag {
    background: var(--digi-accent);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 思考题样式 */
.thinking-questions {
    background: linear-gradient(135deg, #f0fff4 0%, #c6f6d5 100%);
    border-left: 4px solid var(--digi-success);
    margin: 2rem 0;
}

.question-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.question-item {
    background: rgba(255, 255, 255, 0.8);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.question-item h5 {
    color: var(--digi-primary);
    margin: 0 0 0.8rem 0;
    font-size: 1rem;
}

.question-item p {
    color: #4a5568;
    line-height: 1.5;
    margin: 0;
    font-size: 0.9rem;
}

/* 策略分析样式 */
.situation-analysis {
    background: linear-gradient(135deg, #fef5e7 0%, #fed7aa 100%);
    border-left: 4px solid var(--digi-warning);
}

.situation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.situation-item {
    background: rgba(255, 255, 255, 0.8);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
}

.situation-item h5 {
    color: var(--digi-primary);
    margin: 0 0 0.8rem 0;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.situation-item p {
    color: #4a5568;
    line-height: 1.5;
    margin: 0;
    font-size: 0.9rem;
}

/* 策略选择矩阵 */
.strategy-matrix {
    margin: 2rem 0;
}

.matrix-intro {
    text-align: center;
    margin-bottom: 2rem;
}

.matrix-intro p {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.6;
}

.strategy-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.strategy-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.strategy-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--digi-shadow-lg);
}

.strategy-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.strategy-card.short-term .strategy-header {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    color: white;
}

.strategy-card.medium-term .strategy-header {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
}

.strategy-card.long-term .strategy-header {
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    color: white;
}

.strategy-header .strategy-icon {
    font-size: 2rem;
    margin-right: 1rem;
}

.strategy-header h4 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    flex: 1;
}

.strategy-badge {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.strategy-content {
    padding: 1.5rem;
}

.strategy-metrics {
    margin-bottom: 1.5rem;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.metric-row:last-child {
    border-bottom: none;
}

.metric-row span:first-child {
    font-weight: 500;
    color: #4a5568;
}

.metric-row .value {
    font-weight: 600;
}

.metric-row .value.success {
    color: var(--digi-success);
}

.metric-row .value.warning {
    color: var(--digi-warning);
}

.metric-row .value.danger {
    color: var(--digi-danger);
}

.strategy-details p {
    margin: 0.8rem 0;
    line-height: 1.5;
    font-size: 0.9rem;
    color: #4a5568;
}

.strategy-details strong {
    color: var(--digi-primary);
}

/* 推荐策略样式 */
.recommended-strategy {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border-left: 4px solid var(--digi-success);
}

.strategy-phases {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.phase-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    overflow: hidden;
}

.phase-header {
    background: var(--digi-primary);
    color: white;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.phase-header h5 {
    margin: 0;
    font-size: 1.1rem;
}

.phase-timeline {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

.phase-content {
    padding: 1.5rem;
}

.action-list {
    margin-bottom: 1rem;
}

.action-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: #f8fafc;
    border-radius: 8px;
    margin-bottom: 0.8rem;
    border-left: 3px solid var(--digi-accent);
}

.action-item:last-child {
    margin-bottom: 0;
}

.action-item .cost {
    font-weight: 600;
    color: var(--digi-warning);
    font-size: 0.9rem;
}

.phase-result {
    background: var(--digi-success);
    color: white;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.result-label {
    font-weight: 500;
}

.result-value {
    font-weight: 600;
    margin-left: 0.5rem;
}

/* 计算器样式 */
.calculator-container {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    margin: 2rem 0;
}

.calculator-header {
    background: var(--digi-gradient);
    color: white;
    padding: 2rem;
    text-align: center;
}

.calculator-header h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.4rem;
}

.calculator-header p {
    margin: 0;
    opacity: 0.9;
}

.calculator-body {
    padding: 2rem;
}

.input-section {
    margin-bottom: 2rem;
}

.input-section h4 {
    color: var(--digi-primary);
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-weight: 500;
    color: #4a5568;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.input-group input {
    padding: 0.8rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--digi-accent);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.calculator-results {
    background: #f8fafc;
    padding: 2rem;
    border-top: 1px solid #e5e7eb;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.result-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e5e7eb;
}

.result-card.positive {
    border-color: var(--digi-success);
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.result-card.negative {
    border-color: var(--digi-danger);
    background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
}

.result-label {
    font-size: 0.8rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.result-card .result-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--digi-primary);
}

.result-card.positive .result-value {
    color: var(--digi-success);
}

.result-card.negative .result-value {
    color: var(--digi-danger);
}

.balance-status {
    text-align: center;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    margin-bottom: 1rem;
}

.status-indicator.compliant {
    background: var(--digi-success);
    color: white;
}

.status-indicator.deficit {
    background: var(--digi-danger);
    color: white;
}

.status-description {
    color: #4a5568;
    line-height: 1.5;
    font-size: 0.9rem;
}

/* 风险评估样式 */
.risk-assessment {
    margin: 2rem 0;
}

.risk-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.risk-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.risk-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--digi-shadow-lg);
}

.risk-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.risk-card.policy-risk .risk-header {
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    color: white;
}

.risk-card.tech-risk .risk-header {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
}

.risk-card.financial-risk .risk-header {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    color: white;
}

.risk-header .risk-icon {
    font-size: 2rem;
    margin-right: 1rem;
}

.risk-header h4 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    flex: 1;
}

.risk-level {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.risk-content {
    padding: 1.5rem;
}

.risk-factors {
    margin-bottom: 1.5rem;
}

.factor-item {
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 3px solid var(--digi-accent);
}

.factor-item:last-child {
    margin-bottom: 0;
}

.factor-item strong {
    color: var(--digi-primary);
    display: block;
    margin-bottom: 0.5rem;
}

.factor-item p {
    color: #4a5568;
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.mitigation-measures h5 {
    color: var(--digi-primary);
    margin: 0 0 0.8rem 0;
    font-size: 1rem;
}

.mitigation-measures ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mitigation-measures ul li {
    position: relative;
    padding: 0.3rem 0 0.3rem 1.5rem;
    color: #4a5568;
    line-height: 1.5;
    font-size: 0.9rem;
}

.mitigation-measures ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--digi-success);
    font-weight: bold;
}

/* CBAM特定样式 */
.cbam-impact {
    background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
    border-left: 4px solid var(--digi-danger);
}

.impact-overview {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.impact-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.impact-stat {
    background: rgba(255, 255, 255, 0.9);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--digi-primary);
    color: white;
    flex-shrink: 0;
}

.stat-info {
    flex: 1;
}

.stat-number {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--digi-danger);
    margin-bottom: 0.2rem;
}

.stat-label {
    font-size: 0.9rem;
    color: #4a5568;
}

.impact-analysis p {
    margin: 1rem 0;
    line-height: 1.6;
    color: #4a5568;
}

.impact-analysis strong {
    color: var(--digi-primary);
}

/* CBAM机制流程样式 */
.cbam-mechanism {
    margin: 2rem 0;
}

.mechanism-flow {
    margin-bottom: 2rem;
}

.flow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.flow-step {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--digi-shadow);
    border: 2px solid #e5e7eb;
    position: relative;
    transition: all 0.3s ease;
}

.flow-step:hover {
    border-color: var(--digi-accent);
    transform: translateY(-2px);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 1.5rem;
    width: 30px;
    height: 30px;
    background: var(--digi-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
}

.step-content h4 {
    color: var(--digi-primary);
    margin: 0.5rem 0 0.8rem 0;
    font-size: 1.1rem;
}

.step-content p {
    color: #4a5568;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.step-details {
    background: #f8fafc;
    padding: 0.8rem;
    border-radius: 6px;
    border-left: 3px solid var(--digi-accent);
}

.step-details span {
    font-size: 0.9rem;
    color: var(--digi-primary);
    font-weight: 600;
}

/* 碳含量对比表 */
.carbon-content-comparison {
    margin-top: 2rem;
}

.comparison-table {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--digi-shadow);
    margin-top: 1rem;
}

.table-header {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr 1.5fr 1.5fr;
    background: var(--digi-primary);
    color: white;
}

.header-cell {
    padding: 1rem;
    font-weight: 600;
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.header-cell:last-child {
    border-right: none;
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr 1.5fr 1.5fr;
    border-bottom: 1px solid #e5e7eb;
}

.table-row:hover {
    background: #f8fafc;
}

.table-cell {
    padding: 1rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid #e5e7eb;
}

.table-cell:first-child {
    text-align: left;
    font-weight: 600;
}

.table-cell:last-child {
    border-right: none;
}

.table-cell.high {
    color: var(--digi-warning);
    font-weight: 600;
}

.table-cell.danger {
    color: var(--digi-danger);
    font-weight: 600;
}

/* 策略维度卡片 */
.strategy-dimensions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.dimension-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.dimension-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--digi-shadow-lg);
}

.dimension-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.dimension-card.tech-dimension .dimension-header {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
}

.dimension-card.data-dimension .dimension-header {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    color: white;
}

.dimension-card.market-dimension .dimension-header {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
}

.dimension-card.policy-dimension .dimension-header {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    color: white;
}

.dimension-icon {
    font-size: 2rem;
}

.dimension-header h4 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    flex: 1;
}

.dimension-priority {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.dimension-content {
    padding: 1.5rem;
}

.strategy-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.strategy-item {
    background: #f8fafc;
    padding: 1.2rem;
    border-radius: 8px;
    border-left: 3px solid var(--digi-accent);
}

.strategy-item strong {
    color: var(--digi-primary);
    display: block;
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.strategy-item ul {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
}

.strategy-item ul li {
    position: relative;
    padding: 0.3rem 0 0.3rem 1.5rem;
    color: #4a5568;
    line-height: 1.5;
    font-size: 0.9rem;
}

.strategy-item ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--digi-accent);
    font-weight: bold;
}

.impact-estimate {
    background: var(--digi-success);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}

/* CBAM计算器样式 */
.cbam-calculator-container {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow-lg);
    overflow: hidden;
    margin: 2rem 0;
}

.calculator-tabs {
    display: flex;
    background: #f8fafc;
    border-bottom: 1px solid #e5e7eb;
}

.calc-tab {
    flex: 1;
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 500;
    color: #6b7280;
    transition: all 0.3s ease;
}

.calc-tab.active {
    background: white;
    color: var(--digi-primary);
    border-bottom: 2px solid var(--digi-primary);
}

.calc-tab:hover {
    background: #f1f5f9;
    color: var(--digi-primary);
}

.tab-content {
    display: none;
    padding: 1.5rem;
}

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

.reduction-measures {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.measure-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.measure-item:hover {
    border-color: var(--digi-accent);
    background: white;
}

.measure-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    font-weight: 500;
    color: #374151;
}

.measure-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--digi-primary);
}

.measure-impact {
    font-weight: 600;
    color: var(--digi-success);
    font-size: 0.9rem;
}

/* CBAM结果样式 */
.cbam-results {
    background: #f8fafc;
    padding: 2rem;
    border-top: 1px solid #e5e7eb;
}

.cbam-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.result-section {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
}

.result-section h4 {
    color: var(--digi-primary);
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
}

.result-metrics {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.metric-card {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e5e7eb;
}

.metric-label {
    font-size: 0.8rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
    display: block;
}

.metric-card .metric-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--digi-primary);
}

.metric-card .metric-value.success {
    color: var(--digi-success);
}

.metric-card .metric-value.warning {
    color: var(--digi-warning);
}

.metric-card .metric-value.danger {
    color: var(--digi-danger);
}

.impact-summary {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
}

.summary-status {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.summary-status.low-impact {
    background: var(--digi-success);
    color: white;
}

.summary-status.medium-impact {
    background: var(--digi-warning);
    color: white;
}

.summary-status.high-impact {
    background: var(--digi-danger);
    color: white;
}

.summary-text {
    color: #4a5568;
    line-height: 1.6;
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 实施路径样式 */
.implementation-roadmap {
    margin: 2rem 0;
}

.roadmap-timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.timeline-period {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
}

.period-header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.timeline-period.period-1 .period-header {
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    color: white;
}

.timeline-period.period-2 .period-header {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
}

.timeline-period.period-3 .period-header {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
}

.period-header h4 {
    margin: 0;
    font-size: 1.2rem;
}

.period-tag {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.period-content {
    padding: 2rem;
}

.milestones {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.milestone {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 4px solid var(--digi-accent);
}

.milestone-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--digi-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.milestone-text {
    flex: 1;
    color: #374151;
    font-weight: 500;
    line-height: 1.4;
}

.milestone-deadline {
    background: var(--digi-accent);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.period-targets {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.target-item {
    background: var(--digi-success);
    color: white;
    padding: 0.8rem 1.2rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* 供应链管理特定样式 */
.supply-chain-challenge {
    background: linear-gradient(135deg, #f0f9ff 0%, #dbeafe 100%);
    border-left: 4px solid var(--digi-accent);
}

.challenge-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.challenge-metric {
    background: rgba(255, 255, 255, 0.9);
    padding: 1.2rem;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.challenge-metric:hover {
    transform: translateY(-2px);
    box-shadow: var(--digi-shadow);
}

.challenge-metric .metric-icon {
    font-size: 1.8rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--digi-accent);
    color: white;
    flex-shrink: 0;
}

.metric-data {
    flex: 1;
}

.challenge-metric .metric-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--digi-primary);
    margin-bottom: 0.2rem;
}

.challenge-metric .metric-label {
    font-size: 0.9rem;
    color: #4a5568;
}

.challenge-description {
    margin-top: 1.5rem;
}

.challenge-description p {
    margin: 1rem 0;
    line-height: 1.6;
    color: #4a5568;
}

.challenge-description strong {
    color: var(--digi-primary);
}

/* 碳足迹分解样式 */
.carbon-footprint-breakdown {
    margin: 2rem 0;
}

.footprint-chart {
    margin: 1.5rem 0;
}

.chart-container {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 2rem;
}

.pie-chart {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: conic-gradient(
        var(--digi-danger) 0deg 162deg,
        var(--digi-warning) 162deg 234deg,
        var(--digi-success) 234deg 360deg
    );
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.pie-chart::after {
    content: "碳足迹\n构成";
    width: 120px;
    height: 120px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--digi-primary);
    white-space: pre-line;
    text-align: center;
}

.chart-legend {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

.legend-item.scope1 .legend-color {
    background: var(--digi-danger);
}

.legend-item.scope2 .legend-color {
    background: var(--digi-warning);
}

.legend-item.scope3 .legend-color {
    background: var(--digi-success);
}

/* Scope 3分解样式 */
.scope3-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.category-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--digi-shadow-lg);
}

.category-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.category-card.primary-materials .category-header {
    background: linear-gradient(135deg, #92400e 0%, #d97706 100%);
    color: white;
}

.category-card.transportation .category-header {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
}

.category-card.supporting .category-header {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    color: white;
}

.category-icon {
    font-size: 2rem;
}

.category-header h4 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    flex: 1;
}

.category-percentage {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.category-details {
    padding: 1.5rem;
}

.material-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    margin-bottom: 0.8rem;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 3px solid var(--digi-accent);
}

.material-item:last-child {
    margin-bottom: 0;
}

.material-name {
    font-weight: 500;
    color: #374151;
}

.material-impact {
    font-weight: 600;
    color: var(--digi-primary);
    font-size: 0.9rem;
}

/* 供应商分级样式 */
.supplier-tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tier-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.tier-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--digi-shadow-lg);
}

.tier-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.tier-card.tier-strategic .tier-header {
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    color: white;
}

.tier-card.tier-important .tier-header {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
}

.tier-card.tier-general .tier-header {
    background: linear-gradient(135deg, #6b7280 0%, #9ca3af 100%);
    color: white;
}

.tier-icon {
    font-size: 2rem;
    margin-right: 1rem;
}

.tier-header h4 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    flex: 1;
}

.tier-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 1.1rem;
    backdrop-filter: blur(10px);
}

.tier-criteria {
    padding: 1.5rem 1.5rem 0 1.5rem;
}

.criteria-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid #f1f5f9;
}

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

.criteria-item strong {
    color: var(--digi-primary);
    font-weight: 600;
}

.criteria-item span:last-child {
    color: #4a5568;
    font-weight: 500;
}

.tier-measures {
    padding: 0 1.5rem 1rem 1.5rem;
}

.tier-measures h5 {
    color: var(--digi-primary);
    margin: 1rem 0 0.8rem 0;
    font-size: 1rem;
}

.tier-measures ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tier-measures ul li {
    position: relative;
    padding: 0.4rem 0 0.4rem 1.5rem;
    color: #4a5568;
    line-height: 1.5;
    font-size: 0.9rem;
}

.tier-measures ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--digi-accent);
    font-weight: bold;
}

.tier-investment {
    background: #f8fafc;
    padding: 1rem 1.5rem;
    border-top: 1px solid #e5e7eb;
    text-align: center;
}

.tier-investment span {
    background: var(--digi-success);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* 产品碳足迹计算器特定样式 */
.product-footprint-calculator {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow-lg);
    overflow: hidden;
    margin: 2rem 0;
}

.supplier-selection {
    margin-top: 1.5rem;
}

.supplier-selection h4 {
    color: var(--digi-primary);
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.supplier-options {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.supplier-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.supplier-option:hover {
    border-color: var(--digi-accent);
    background: white;
}

.supplier-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    font-weight: 500;
    color: #374151;
}

.supplier-label input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--digi-primary);
}

.supplier-impact {
    font-weight: 600;
    color: var(--digi-success);
    font-size: 0.9rem;
}

/* 碳足迹结果样式 */
.footprint-results {
    background: #f8fafc;
    padding: 2rem;
    border-top: 1px solid #e5e7eb;
}

.footprint-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.total-footprint {
    text-align: center;
}

.footprint-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 1rem 0;
}

.footprint-value.excellent {
    color: var(--digi-success);
}

.footprint-value.good {
    color: var(--digi-warning);
}

.footprint-value.needs-improvement {
    color: var(--digi-danger);
}

.benchmark-comparison {
    font-size: 1rem;
    color: #6b7280;
}

.scope-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.scope-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: white;
    border-radius: 6px;
    border-left: 3px solid var(--digi-accent);
}

.scope-label {
    font-weight: 500;
    color: #374151;
}

.scope-value {
    font-weight: 600;
    color: var(--digi-primary);
}

.optimization-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.opt-item {
    padding: 0.6rem;
    background: white;
    border-radius: 6px;
    font-size: 0.9rem;
    color: #4a5568;
    border-left: 3px solid var(--digi-success);
}

.certification-readiness {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 2rem;
}

.certification-readiness h4 {
    color: var(--digi-primary);
    margin: 0 0 1rem 0;
    text-align: center;
}

.cert-status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.cert-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: #f8fafc;
    border-radius: 6px;
}

.cert-name {
    font-weight: 600;
    color: var(--digi-primary);
}

.cert-status.ready {
    color: var(--digi-success);
    font-weight: 600;
}

.cert-status.preparation-needed {
    color: var(--digi-warning);
    font-weight: 600;
}

/* 数字化平台架构样式 */
.platform-layers {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.layer {
    background: white;
    border-radius: 10px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.layer:hover {
    transform: translateY(-2px);
    box-shadow: var(--digi-shadow-lg);
}

.layer-header {
    padding: 1rem 1.5rem;
    color: white;
    font-weight: 600;
}

.layer.data-layer .layer-header {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
}

.layer.processing-layer .layer-header {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
}

.layer.analytics-layer .layer-header {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

.layer.application-layer .layer-header {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
}

.layer-header h4 {
    margin: 0;
    font-size: 1.1rem;
}

.layer-components {
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.component {
    background: #f8fafc;
    padding: 0.8rem;
    border-radius: 6px;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--digi-primary);
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.component:hover {
    border-color: var(--digi-accent);
    background: white;
}

.platform-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--digi-shadow);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--digi-shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h5 {
    color: var(--digi-primary);
    margin: 0 0 0.8rem 0;
    font-size: 1.1rem;
}

.feature-card p {
    color: #4a5568;
    line-height: 1.5;
    margin: 0;
    font-size: 0.9rem;
}

/* 认证标准样式 */
.standards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.standard-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.standard-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--digi-shadow-lg);
}

.standard-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.standard-card.iso14067 .standard-header {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
}

.standard-card.pef .standard-header {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    color: white;
}

.standard-card.sbti .standard-header {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
}

.standard-card.epd .standard-header {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
}

.standard-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    backdrop-filter: blur(10px);
}

.standard-header h4 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    flex: 1;
}

.standard-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.standard-details {
    padding: 1.5rem;
}

.standard-details p {
    color: var(--digi-primary);
    font-weight: 600;
    margin: 0 0 1rem 0;
}

.standard-details ul {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
}

.standard-details ul li {
    position: relative;
    padding: 0.3rem 0 0.3rem 1.5rem;
    color: #4a5568;
    line-height: 1.5;
    font-size: 0.9rem;
}

.standard-details ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--digi-success);
    font-weight: bold;
}

.certification-cost {
    background: #f8fafc;
    padding: 0.8rem;
    border-radius: 6px;
    text-align: center;
    font-weight: 600;
    color: var(--digi-primary);
    font-size: 0.9rem;
}

/* 案例讨论题样式 */
.case-discussion {
    background: linear-gradient(135deg, #f0f9ff 0%, #dbeafe 100%);
    border-left: 4px solid var(--digi-accent);
}

.discussion-questions {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.question-block {
    background: rgba(255, 255, 255, 0.8);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
}

.question-block h5 {
    color: var(--digi-primary);
    margin: 0 0 0.8rem 0;
    font-size: 1rem;
    font-weight: 600;
}

.question-block p {
    color: #4a5568;
    line-height: 1.6;
    margin: 0;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .company-header {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .company-stats {
        justify-content: center;
    }
    
    .company-details-grid {
        grid-template-columns: 1fr;
    }
    
    .detail-section {
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
    }
    
    .detail-section:last-child {
        border-bottom: none;
    }
    
    .challenges-detailed {
        grid-template-columns: 1fr;
    }
    
    .roadmap-steps {
        grid-template-columns: 1fr;
    }
    
    .question-grid {
        grid-template-columns: 1fr;
    }
    
    .pressure-grid {
        grid-template-columns: 1fr;
    }
}

/* =============================================
   Module 5.5: 数字化碳管理平台样式
   ============================================= */

/* 平台架构图样式 */
.platform-architecture {
    margin: 2rem 0;
}

.architecture-overview {
    background: white;
    border-radius: 16px;
    box-shadow: var(--digi-shadow-lg);
    padding: 2rem;
    overflow: hidden;
}

.arch-layer {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1rem 0;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
    position: relative;
}

.arch-layer:hover {
    border-color: var(--digi-primary);
    transform: translateY(-2px);
    box-shadow: var(--digi-shadow);
}

.arch-layer.data-layer {
    border-left: 4px solid #3182ce;
}

.arch-layer.processing-layer {
    border-left: 4px solid #38a169;
}

.arch-layer.analytics-layer {
    border-left: 4px solid #d69e2e;
}

.arch-layer.application-layer {
    border-left: 4px solid #e53e3e;
}

.arch-layer h3 {
    margin: 0 0 1rem 0;
    color: var(--digi-primary);
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.layer-components {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.8rem;
}

.component {
    background: white;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    color: var(--digi-primary);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.component:hover {
    border-color: var(--digi-accent);
    background: #f0f9ff;
    transform: translateY(-1px);
}

.arch-arrow {
    text-align: center;
    font-size: 1.5rem;
    color: var(--digi-primary);
    margin: 0.5rem 0;
    font-weight: bold;
}

/* 平台功能模块样式 */
.platform-modules {
    margin: 3rem 0;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.module-card {
    background: white;
    border-radius: 16px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--digi-shadow-lg);
}

.module-card.ets-module {
    border-top: 4px solid var(--challenge-ets);
}

.module-card.cbam-module {
    border-top: 4px solid var(--challenge-cbam);
}

.module-card.supply-module {
    border-top: 4px solid var(--challenge-supply);
}

.module-icon {
    font-size: 2.5rem;
    text-align: center;
    padding: 1.5rem 0 0.5rem 0;
}

.module-card h4 {
    text-align: center;
    margin: 0 0 1.5rem 0;
    color: var(--digi-primary);
    font-size: 1.3rem;
    font-weight: 600;
    padding: 0 1rem;
}

.module-features {
    padding: 0 1.5rem 1rem 1.5rem;
}

.feature {
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: #4a5568;
    border-bottom: 1px solid #f1f5f9;
}

.feature:last-child {
    border-bottom: none;
}

.module-stats {
    background: #f8fafc;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
}

.stat {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--digi-primary);
}

/* 实施路线图样式 */
.implementation-roadmap {
    margin: 3rem 0;
}

.roadmap-timeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.timeline-phase {
    flex: 1;
    min-width: 250px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.timeline-phase:hover {
    transform: translateY(-3px);
    box-shadow: var(--digi-shadow-lg);
}

.phase-1 {
    border-top: 4px solid #3182ce;
}

.phase-2 {
    border-top: 4px solid #38a169;
}

.phase-3 {
    border-top: 4px solid #d69e2e;
}

.phase-header {
    background: linear-gradient(135deg, var(--digi-primary) 0%, var(--digi-secondary) 100%);
    color: white;
    padding: 1rem;
    text-align: center;
}

.phase-header h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.phase-status {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.phase-content {
    padding: 1.5rem;
}

.milestone {
    padding: 0.4rem 0;
    font-size: 0.9rem;
    color: #4a5568;
    border-bottom: 1px solid #f1f5f9;
}

.milestone:last-of-type {
    border-bottom: none;
    margin-bottom: 1rem;
}

.investment {
    background: #f0f9ff;
    color: var(--digi-primary);
    padding: 0.8rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
}

.timeline-arrow {
    font-size: 2rem;
    color: var(--digi-primary);
    font-weight: bold;
    margin: 0 1rem;
}

/* ROI计算器样式 */
.roi-calculator {
    background: white;
    border-radius: 16px;
    box-shadow: var(--digi-shadow-lg);
    overflow: hidden;
    margin: 2rem 0;
    border: 1px solid #e2e8f0;
}

.roi-calculator h3 {
    background: var(--digi-gradient);
    color: white;
    margin: 0;
    padding: 1.5rem;
    text-align: center;
    font-size: 1.3rem;
}

.calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-weight: 600;
    color: var(--digi-primary);
    font-size: 0.9rem;
}

.input-group input[type="number"] {
    padding: 0.8rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--digi-accent);
}

.input-group input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: #e2e8f0;
    height: 6px;
    border-radius: 3px;
    outline: none;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--digi-accent);
    border-radius: 50%;
    cursor: pointer;
}

.input-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--digi-accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.range-value {
    font-weight: 600;
    color: var(--digi-primary);
    font-size: 0.9rem;
    text-align: right;
}

.calculate-btn {
    background: var(--digi-gradient);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--digi-shadow);
}

.calc-results {
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-card {
    background: #f8fafc;
    border-radius: 12px;
    padding: 2rem;
    width: 100%;
    border: 1px solid #e2e8f0;
}

.result-card h4 {
    text-align: center;
    margin: 0 0 1.5rem 0;
    color: var(--digi-primary);
    font-size: 1.2rem;
}

.roi-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.metric {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.metric-label {
    display: block;
    font-size: 0.8rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--digi-primary);
}

.metric-value.excellent {
    color: var(--digi-success);
}

.metric-value.good {
    color: var(--digi-accent);
}

.metric-value.needs-improvement {
    color: var(--digi-warning);
}

/* 效益分解样式 */
.benefits-breakdown {
    margin: 3rem 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-category {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.benefit-category h4 {
    background: linear-gradient(135deg, var(--digi-primary) 0%, var(--digi-secondary) 100%);
    color: white;
    margin: 0;
    padding: 1rem;
    text-align: center;
    font-size: 1.1rem;
}

.benefit-items {
    padding: 1.5rem;
}

.benefit-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.9rem;
}

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

.benefit-item span:first-child {
    color: #4a5568;
}

.benefit-value {
    color: var(--digi-success);
    font-weight: 700;
}

/* 决策框架样式 */
.decision-framework {
    margin: 3rem 0;
    background: white;
    border-radius: 16px;
    box-shadow: var(--digi-shadow-lg);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.decision-framework h3 {
    background: var(--digi-gradient);
    color: white;
    margin: 0;
    padding: 1.5rem;
    text-align: center;
    font-size: 1.3rem;
}

.decision-matrix {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    padding: 2rem;
}

.decision-criteria h4 {
    margin: 0 0 1rem 0;
    color: var(--digi-primary);
    font-size: 1.1rem;
}

.criteria-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.criterion {
    background: #f8fafc;
    padding: 0.8rem;
    border-radius: 8px;
    font-weight: 500;
    color: var(--digi-primary);
    border: 1px solid #e2e8f0;
}

.decision-options h4 {
    margin: 0 0 1rem 0;
    color: var(--digi-primary);
    font-size: 1.1rem;
}

.options-table {
    display: grid;
    grid-template-columns: 2fr repeat(5, 1fr);
    gap: 0.5rem;
    align-items: center;
}

.option-row {
    display: contents;
}

.option-row.header {
    font-weight: 700;
    color: var(--digi-primary);
}

.option-row.header > span {
    background: #f8fafc;
    padding: 0.8rem;
    border-radius: 6px;
    text-align: center;
    border: 1px solid #e2e8f0;
    font-size: 0.9rem;
}

.option-row:not(.header) > span {
    background: white;
    padding: 0.8rem;
    border-radius: 6px;
    text-align: center;
    border: 1px solid #e2e8f0;
    font-size: 0.9rem;
}

.option-row.best-option > span {
    background: #f0fdf4;
    border-color: var(--digi-success);
    color: var(--digi-success);
    font-weight: 600;
}

.score {
    font-weight: 700;
}

.total-score {
    font-weight: 700;
    font-size: 1rem;
}

/* 哈佛讨论样式 */
.harvard-discussion {
    margin: 3rem 0;
}

.discussion-questions {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.question-card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--digi-shadow);
    padding: 2rem;
    border: 1px solid #e2e8f0;
    display: flex;
    gap: 1.5rem;
    transition: all 0.3s ease;
}

.question-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--digi-shadow-lg);
}

.question-number {
    background: var(--digi-gradient);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.question-content {
    flex: 1;
}

.question-content h4 {
    margin: 0 0 1rem 0;
    color: var(--digi-primary);
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.4;
}

.question-hint {
    color: #6b7280;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
    font-style: italic;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .calculator-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .decision-matrix {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .roadmap-timeline {
        flex-direction: column;
        align-items: stretch;
    }
    
    .timeline-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .layer-components {
        grid-template-columns: 1fr;
    }
    
    .roi-metrics {
        grid-template-columns: 1fr;
    }
    
    .options-table {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .option-row {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin-bottom: 1rem;
        padding: 1rem;
        background: #f8fafc;
        border-radius: 8px;
    }
    
    .option-row > span {
        flex: 1;
        min-width: 80px;
    }
    
    .question-card {
        flex-direction: column;
        gap: 1rem;
    }
    
    .question-number {
        align-self: flex-start;
    }
}