/* CBAM模块优化样式 - 2025年版本 */
/* 为EU CBAM机制深度解析和合规策略提供专业视觉设计 */

:root {
    /* CBAM专用色彩系统 */
    --cbam-primary: #1e40af;        /* 欧盟蓝 */
    --cbam-secondary: #0ea5e9;      /* 明亮蓝 */
    --cbam-success: #059669;        /* 成功绿 */
    --cbam-warning: #f59e0b;        /* 警告橙 */
    --cbam-danger: #dc2626;         /* 危险红 */
    --cbam-gold: #fbbf24;          /* 金色 */
    --cbam-silver: #6b7280;        /* 银色 */
    --cbam-bronze: #ea580c;        /* 铜色 */
    
    /* 渐变色 */
    --cbam-gradient: linear-gradient(135deg, #1e40af 0%, #0ea5e9 100%);
    --cbam-light-gradient: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
    
    /* 阴影 */
    --cbam-shadow: 0 4px 6px rgba(30, 64, 175, 0.1);
    --cbam-shadow-lg: 0 10px 25px rgba(30, 64, 175, 0.15);
    
    /* 行业特色色彩 */
    --steel-color: #4b5563;
    --aluminum-color: #374151;
    --cement-color: #78716c;
    --chemical-color: #059669;
}

/* CBAM幻灯片基础样式 */
.cbam-slide {
    background: var(--cbam-light-gradient);
    position: relative;
    overflow-x: hidden;
}

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

/* 最新更新展示 */
.latest-updates {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.update-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.update-item:hover {
    border-color: var(--cbam-primary);
    transform: translateY(-2px);
    box-shadow: var(--cbam-shadow-lg);
}

.update-icon {
    background: var(--cbam-primary);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.update-content h5 {
    color: var(--cbam-primary);
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.update-content p {
    color: #4b5563;
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.update-note {
    margin-top: 1rem;
    padding: 1rem;
    background: #f3f4f6;
    border-radius: 8px;
    font-size: 0.85rem;
    color: #6b7280;
}

.update-note a {
    color: var(--cbam-primary);
    text-decoration: none;
}

.update-note a:hover {
    text-decoration: underline;
}

/* 政策逻辑链条 */
.policy-logic-chain {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: var(--cbam-shadow);
}

.logic-node {
    background: var(--cbam-light-gradient);
    border: 2px solid var(--cbam-primary);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    min-width: 150px;
    transition: all 0.3s ease;
}

.logic-node:hover {
    transform: scale(1.05);
    box-shadow: var(--cbam-shadow-lg);
}

.node-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.logic-node h4 {
    color: var(--cbam-primary);
    margin: 0.5rem 0;
    font-size: 1rem;
    font-weight: 600;
}

.logic-node p {
    color: #6b7280;
    margin: 0;
    font-size: 0.85rem;
}

.logic-arrow {
    font-size: 1.5rem;
    color: var(--cbam-primary);
    font-weight: bold;
}

@media (max-width: 768px) {
    .policy-logic-chain {
        flex-direction: column;
    }
    
    .logic-arrow {
        transform: rotate(90deg);
    }
}

/* 产品覆盖矩阵 */
.product-coverage-matrix {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--cbam-shadow);
    margin: 2rem 0;
}

.coverage-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.stat-card {
    text-align: center;
    padding: 1rem;
    background: var(--cbam-light-gradient);
    border-radius: 12px;
    min-width: 120px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--cbam-primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: #6b7280;
    font-weight: 500;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.product-category {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid #e5e7eb;
    transition: all 0.3s ease;
}

.product-category:hover {
    transform: translateY(-2px);
    box-shadow: var(--cbam-shadow-lg);
}

.product-category.high-impact {
    border-color: var(--cbam-danger);
}

.product-category.medium-impact {
    border-color: var(--cbam-warning);
}

.product-category.low-impact {
    border-color: var(--cbam-success);
}

.product-category.emerging-impact {
    border-color: var(--cbam-secondary);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background: #f8fafc;
}

.category-icon {
    font-size: 1.8rem;
    margin-right: 0.75rem;
}

.category-header h4 {
    flex: 1;
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    color: #1f2937;
}

.impact-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.high-impact .impact-badge {
    background: var(--cbam-danger);
    color: white;
}

.medium-impact .impact-badge {
    background: var(--cbam-warning);
    color: white;
}

.low-impact .impact-badge {
    background: var(--cbam-success);
    color: white;
}

.emerging-impact .impact-badge {
    background: var(--cbam-secondary);
    color: white;
}

.category-details {
    padding: 1.5rem;
}

.cn-codes {
    background: #f3f4f6;
    padding: 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    color: #6b7280;
    margin-bottom: 1rem;
}

.key-products {
    font-size: 0.9rem;
    color: #4b5563;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.china-impact {
    background: #fef3c7;
    border-left: 4px solid var(--cbam-gold);
    padding: 1rem;
    border-radius: 0 8px 8px 0;
}

.china-impact strong {
    color: #92400e;
}

.china-impact ul {
    margin: 0.5rem 0 0 0;
    padding-left: 1.2rem;
}

.china-impact li {
    font-size: 0.85rem;
    color: #78716c;
    margin: 0.25rem 0;
}

/* 实施时间线 */
.implementation-timeline {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--cbam-shadow);
}

.timeline-progress {
    margin-bottom: 2rem;
}

.progress-bar {
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--cbam-gradient);
    transition: width 0.3s ease;
}

.progress-label {
    font-size: 0.9rem;
    color: #6b7280;
    text-align: center;
}

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

.phase {
    background: white;
    border-radius: 12px;
    border: 2px solid #e5e7eb;
    overflow: hidden;
    transition: all 0.3s ease;
}

.phase.completed {
    border-color: var(--cbam-success);
    background: linear-gradient(135deg, #ecfdf5 0%, white 100%);
}

.phase.current {
    border-color: var(--cbam-primary);
    background: linear-gradient(135deg, #eff6ff 0%, white 100%);
}

.phase.upcoming {
    border-color: var(--cbam-warning);
    background: linear-gradient(135deg, #fffbeb 0%, white 100%);
}

.phase.future {
    border-color: #d1d5db;
    background: linear-gradient(135deg, #f9fafb 0%, white 100%);
}

.phase-header {
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.5);
}

.phase-date {
    font-weight: 600;
    font-size: 0.9rem;
}

.phase-status {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.phase.completed .phase-status {
    background: var(--cbam-success);
    color: white;
}

.phase.current .phase-status {
    background: var(--cbam-primary);
    color: white;
}

.phase.upcoming .phase-status {
    background: var(--cbam-warning);
    color: white;
}

.phase.future .phase-status {
    background: #6b7280;
    color: white;
}

.phase h4 {
    margin: 1rem 1.5rem 0.5rem;
    color: #1f2937;
    font-size: 1.1rem;
}

.phase p {
    margin: 0 1.5rem 1rem;
    color: #6b7280;
    font-size: 0.9rem;
    line-height: 1.5;
}

.phase-achievements,
.phase-milestones,
.phase-preparations,
.phase-expansions {
    padding: 0 1.5rem 1.5rem;
}

.achievement,
.milestone,
.prep-item,
.expansion {
    background: rgba(255, 255, 255, 0.8);
    padding: 0.5rem;
    margin: 0.5rem 0;
    border-radius: 6px;
    font-size: 0.85rem;
    border-left: 3px solid currentColor;
}

.milestone.completed,
.achievement {
    color: var(--cbam-success);
}

.milestone.current {
    color: var(--cbam-primary);
}

/* CBAM计算器 */
.cbam-calculator {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--cbam-shadow-lg);
    margin: 2rem 0;
}

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

@media (max-width: 1024px) {
    .calculator-interface {
        grid-template-columns: 1fr;
    }
}

.input-section,
.pricing-section,
.results-section {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
}

.input-section h3,
.pricing-section h3,
.results-section h3 {
    color: var(--cbam-primary);
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
    font-size: 0.9rem;
}

.input-group select,
.input-group input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
}

.input-group select:focus,
.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--cbam-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.input-slider {
    margin-top: 0.5rem;
}

.input-slider input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #e5e7eb;
    outline: none;
    -webkit-appearance: none;
}

.input-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--cbam-primary);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.intensity-reference,
.price-info {
    margin-top: 0.5rem;
}

.intensity-reference small,
.price-info small {
    color: #6b7280;
    font-size: 0.8rem;
}

.price-info small {
    display: block;
    margin-top: 0.25rem;
}

.calculation-breakdown {
    background: white;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.calc-step {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f3f4f6;
}

.calc-step:last-child {
    border-bottom: none;
}

.calc-step.result-highlight {
    background: var(--cbam-light-gradient);
    margin: 0.5rem -1rem;
    padding: 1rem;
    border-radius: 8px;
    border: 2px solid var(--cbam-primary);
}

.calc-label {
    font-weight: 500;
    color: #374151;
    font-size: 0.9rem;
}

.calc-value {
    font-weight: 600;
    color: var(--cbam-primary);
    font-size: 1rem;
}

.result-highlight .calc-value {
    font-size: 1.2rem;
    color: var(--cbam-primary);
}

/* 影响分析指标 */
.impact-analysis {
    background: white;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
}

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

.metric {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: #f8fafc;
    border-radius: 8px;
}

.metric-icon {
    background: var(--cbam-primary);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.metric-content {
    flex: 1;
}

.metric-label {
    font-size: 0.8rem;
    color: #6b7280;
    margin-bottom: 0.25rem;
}

.metric-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--cbam-primary);
}

/* 情景对比 */
.scenario-comparison {
    margin-top: 1.5rem;
}

.scenario-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 1rem;
}

.scenario-card {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    padding: 1rem;
    transition: all 0.3s ease;
}

.scenario-card.optimized {
    border-color: var(--cbam-warning);
    background: linear-gradient(135deg, #fffbeb 0%, white 100%);
}

.scenario-card.best {
    border-color: var(--cbam-success);
    background: linear-gradient(135deg, #ecfdf5 0%, white 100%);
}

.scenario-card h5 {
    margin: 0 0 0.75rem 0;
    font-size: 0.9rem;
    color: #374151;
}

.scenario-data {
    font-size: 0.8rem;
}

.scenario-data > div {
    margin: 0.25rem 0;
    display: flex;
    justify-content: space-between;
}

.savings {
    color: var(--cbam-success);
    font-weight: 600;
    border-top: 1px solid #e5e7eb;
    padding-top: 0.5rem;
    margin-top: 0.5rem;
}

/* 资源生态系统 */
.resources-ecosystem {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--cbam-shadow);
}

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

.resource-category {
    background: #f8fafc;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
}

.resource-category.official {
    border-color: var(--cbam-primary);
}

.resource-category.analytical {
    border-color: var(--cbam-secondary);
}

.resource-category.practical {
    border-color: var(--cbam-success);
}

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

.category-icon {
    background: var(--cbam-gradient);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.category-header h3 {
    color: var(--cbam-primary);
    margin: 0;
    font-size: 1.2rem;
}

.resource-links {
    padding: 0 1.5rem 1.5rem;
}

.resource-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    margin: 0.75rem 0;
    text-decoration: none;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.resource-link:hover {
    border-color: var(--cbam-primary);
    transform: translateY(-1px);
    box-shadow: var(--cbam-shadow);
}

.link-icon {
    background: var(--cbam-light-gradient);
    color: var(--cbam-primary);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.link-content {
    flex: 1;
}

.link-content h4 {
    margin: 0 0 0.25rem 0;
    color: var(--cbam-primary);
    font-size: 0.95rem;
    font-weight: 600;
}

.link-content p {
    margin: 0;
    color: #6b7280;
    font-size: 0.8rem;
    line-height: 1.4;
}

/* 实施工具包 */
.implementation-toolkit {
    background: var(--cbam-light-gradient);
    border-radius: 12px;
    padding: 2rem;
    border: 2px solid var(--cbam-primary);
}

.implementation-toolkit h3 {
    color: var(--cbam-primary);
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

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

.tool-item {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.tool-item:hover {
    border-color: var(--cbam-primary);
    transform: translateY(-2px);
    box-shadow: var(--cbam-shadow);
}

.tool-icon {
    background: var(--cbam-primary);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}

.tool-item h4 {
    color: var(--cbam-primary);
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}

.tool-item p {
    color: #6b7280;
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.4;
}

/* 关键要点 */
.key-takeaways {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--cbam-shadow);
}

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

.takeaway-card {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    border: 2px solid #e5e7eb;
    transition: all 0.3s ease;
}

.takeaway-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--cbam-shadow);
}

.takeaway-card.urgent {
    border-color: var(--cbam-danger);
    background: linear-gradient(135deg, #fef2f2 0%, #f8fafc 100%);
}

.takeaway-card.impact {
    border-color: var(--cbam-warning);
    background: linear-gradient(135deg, #fffbeb 0%, #f8fafc 100%);
}

.takeaway-card.opportunity {
    border-color: var(--cbam-success);
    background: linear-gradient(135deg, #ecfdf5 0%, #f8fafc 100%);
}

.takeaway-card.systematic {
    border-color: var(--cbam-primary);
    background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 100%);
}

.takeaway-icon {
    background: var(--cbam-gradient);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.8rem;
}

.takeaway-card h4 {
    color: var(--cbam-primary);
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
}

.takeaway-card p {
    color: #4b5563;
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 合规策略样式 */
.strategy-pillars {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.pillar {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    border: 2px solid var(--cbam-primary);
    min-width: 200px;
    transition: all 0.3s ease;
}

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

.pillar-icon {
    background: var(--cbam-gradient);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
}

.pillar h5 {
    color: var(--cbam-primary);
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.pillar p {
    color: #6b7280;
    margin: 0;
    font-size: 0.9rem;
}

/* 策略阶段 */
.strategy-phase {
    background: white;
    border-radius: 16px;
    margin: 2rem 0;
    overflow: hidden;
    box-shadow: var(--cbam-shadow);
}

.strategy-phase.immediate {
    border-left: 6px solid var(--cbam-danger);
}

.strategy-phase.medium-term {
    border-left: 6px solid var(--cbam-warning);
}

.strategy-phase.long-term {
    border-left: 6px solid var(--cbam-success);
}

.phase-header {
    background: #f8fafc;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.phase-timeline {
    background: var(--cbam-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.phase-priority {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.immediate .phase-priority {
    background: var(--cbam-danger);
    color: white;
}

.medium-term .phase-priority {
    background: var(--cbam-warning);
    color: white;
}

.long-term .phase-priority {
    background: var(--cbam-success);
    color: white;
}

.phase-header h3 {
    flex: 1;
    margin: 0;
    color: var(--cbam-primary);
    font-size: 1.3rem;
}

.strategy-content {
    padding: 2rem;
}

.strategy-objectives {
    background: var(--cbam-light-gradient);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.strategy-objectives h4 {
    color: var(--cbam-primary);
    margin-top: 0;
    margin-bottom: 1rem;
}

.strategy-objectives ul {
    margin: 0;
    padding-left: 1.2rem;
}

.strategy-objectives li {
    color: #4b5563;
    margin: 0.5rem 0;
    line-height: 1.5;
}

/* 检查清单 */
.action-checklist {
    margin: 2rem 0;
}

.action-checklist h4 {
    color: var(--cbam-primary);
    margin-bottom: 1.5rem;
}

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

.checklist-category {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #e5e7eb;
}

.checklist-category h5 {
    color: var(--cbam-primary);
    margin: 0 0 1rem 0;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checklist-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    background: white;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.checklist-item:hover {
    border-color: var(--cbam-primary);
    background: #eff6ff;
}

.checklist-item input[type="checkbox"] {
    margin-top: 0.25rem;
    transform: scale(1.2);
    accent-color: var(--cbam-primary);
}

.checklist-item label {
    flex: 1;
    font-size: 0.9rem;
    color: #374151;
    line-height: 1.4;
    cursor: pointer;
}

.checklist-item input[type="checkbox"]:checked + label {
    text-decoration: line-through;
    color: #9ca3af;
}

/* 实施时间表 */
.implementation-timeline .timeline-bars {
    margin-top: 1rem;
}

.timeline-bar {
    display: flex;
    align-items: center;
    margin: 1rem 0;
}

.task-name {
    width: 150px;
    font-size: 0.9rem;
    color: #374151;
    padding-right: 1rem;
}

.time-bar {
    flex: 1;
    height: 24px;
    background: #f3f4f6;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.time-segment {
    height: 100%;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    position: absolute;
    top: 0;
}

/* 技术路径展示 */
.technology-roadmap {
    margin: 2rem 0;
}

.industry-tabs {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
}

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

.tab-btn {
    flex: 1;
    padding: 1rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: #6b7280;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: #f3f4f6;
    color: var(--cbam-primary);
}

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

.tab-content {
    padding: 2rem;
}

.tech-pathway h5 {
    color: var(--cbam-primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tech-levels {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.tech-level h6 {
    color: #374151;
    margin: 0 0 1rem 0;
    font-size: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e5e7eb;
}

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

.tech-card {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.tech-card:hover {
    border-color: var(--cbam-primary);
    transform: translateY(-2px);
    box-shadow: var(--cbam-shadow);
}

.tech-card.breakthrough {
    border-color: var(--cbam-gold);
    background: linear-gradient(135deg, #fffbeb 0%, #f8fafc 100%);
}

.tech-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.tech-card h7 {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--cbam-primary);
    margin-bottom: 1rem;
}

.tech-metrics {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.metric {
    background: white;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    color: #6b7280;
}

/* 投资分析矩阵 */
.investment-analysis {
    margin: 2rem 0;
}

.investment-matrix {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid #e5e7eb;
}

.matrix-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.matrix-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--cbam-primary);
}

.matrix-chart {
    position: relative;
    height: 300px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
}

.chart-area {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    height: 100%;
}

.quadrant {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid #f3f4f6;
    position: relative;
}

.quadrant.quick-wins {
    background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
}

.quadrant.strategic {
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
}

.quadrant.incremental {
    background: linear-gradient(135deg, #fef3c7 0%, #fffbeb 100%);
}

.quadrant.breakthrough {
    background: linear-gradient(135deg, #fdf2f8 0%, #fef7ff 100%);
}

.quadrant h6 {
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: #374151;
}

.tech-bubble {
    background: var(--cbam-primary);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    margin: 0.25rem;
    text-align: center;
}

.axis-labels {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.x-axis {
    position: absolute;
    bottom: -30px;
    right: 50%;
    transform: translateX(50%);
    font-size: 0.8rem;
    color: #6b7280;
    font-weight: 500;
}

.y-axis {
    position: absolute;
    left: -80px;
    top: 50%;
    transform: translateY(-50%) rotate(-90deg);
    font-size: 0.8rem;
    color: #6b7280;
    font-weight: 500;
}

/* 生态合作模式 */
.collaboration-models {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.model-card {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.model-card:hover {
    border-color: var(--cbam-primary);
    transform: translateY(-2px);
    box-shadow: var(--cbam-shadow-lg);
}

.model-icon {
    background: var(--cbam-gradient);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.model-card h5 {
    color: var(--cbam-primary);
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
}

.model-content {
    padding: 1.5rem;
}

.model-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.example {
    background: #f3f4f6;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: #6b7280;
}

.model-benefits {
    margin-top: 1rem;
}

.benefit {
    display: block;
    font-size: 0.85rem;
    color: var(--cbam-success);
    margin: 0.25rem 0;
}

/* 成功案例 */
.case-study-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

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

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

.case-card.steel {
    border-top: 4px solid var(--steel-color);
}

.case-card.aluminum {
    border-top: 4px solid var(--aluminum-color);
}

.case-card.chemical {
    border-top: 4px solid var(--chemical-color);
}

.case-header {
    padding: 1.5rem;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.case-icon {
    background: var(--cbam-primary);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.case-header h4 {
    flex: 1;
    margin: 0 1rem 0 0;
    color: var(--cbam-primary);
    font-size: 1.1rem;
}

.case-badge {
    background: var(--cbam-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.case-content {
    padding: 1.5rem;
}

.case-challenge,
.case-solution,
.case-results {
    margin-bottom: 1.5rem;
}

.case-challenge h5,
.case-solution h5,
.case-results h5 {
    color: var(--cbam-primary);
    margin: 0 0 0.75rem 0;
    font-size: 1rem;
}

.case-challenge p,
.case-solution ul,
.case-results .result-metrics {
    color: #4b5563;
    font-size: 0.9rem;
    line-height: 1.5;
}

.case-solution ul {
    margin: 0;
    padding-left: 1.2rem;
}

.case-solution li {
    margin: 0.5rem 0;
}

.result-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.result-metrics .metric {
    background: var(--cbam-success);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 行动建议 */
.action-summary {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--cbam-shadow);
}

.priority-actions {
    margin-bottom: 2rem;
}

.priority-actions h3 {
    color: var(--cbam-primary);
    margin: 0 0 1.5rem 0;
}

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

.action-item {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
    border: 2px solid #e5e7eb;
    transition: all 0.3s ease;
}

.action-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--cbam-shadow);
}

.action-item.critical {
    border-color: var(--cbam-danger);
    background: linear-gradient(135deg, #fef2f2 0%, #f8fafc 100%);
}

.action-item.important {
    border-color: var(--cbam-warning);
    background: linear-gradient(135deg, #fffbeb 0%, #f8fafc 100%);
}

.action-item.strategic {
    border-color: var(--cbam-success);
    background: linear-gradient(135deg, #ecfdf5 0%, #f8fafc 100%);
}

.action-priority {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.critical .action-priority {
    background: var(--cbam-danger);
    color: white;
}

.important .action-priority {
    background: var(--cbam-warning);
    color: white;
}

.strategic .action-priority {
    background: var(--cbam-success);
    color: white;
}

.action-item h4 {
    color: var(--cbam-primary);
    margin: 0 0 0.75rem 0;
    font-size: 1.1rem;
}

.action-item p {
    color: #4b5563;
    margin: 0 0 1rem 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.action-deadline {
    background: white;
    padding: 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    color: #6b7280;
    font-weight: 500;
    border-left: 3px solid currentColor;
}

/* 成功要素 */
.success-factors h3 {
    color: var(--cbam-primary);
    margin: 0 0 1.5rem 0;
}

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

.factor-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.factor-item:hover {
    border-color: var(--cbam-primary);
    background: #eff6ff;
}

.factor-icon {
    background: var(--cbam-primary);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.factor-content h4 {
    color: var(--cbam-primary);
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}

.factor-content p {
    color: #4b5563;
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cbam-slide {
        padding: 1rem;
    }
    
    .policy-logic-chain {
        padding: 1rem;
    }
    
    .logic-node {
        min-width: 120px;
        padding: 1rem;
    }
    
    .coverage-stats {
        gap: 1rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-phases {
        grid-template-columns: 1fr;
    }
    
    .calculator-interface {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .resource-categories {
        grid-template-columns: 1fr;
    }
    
    .collaboration-models,
    .case-study-grid,
    .action-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-options {
        grid-template-columns: 1fr;
    }
    
    .chart-area {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }
    
    .factor-list {
        grid-template-columns: 1fr;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cbam-slide .harvard-section {
    animation: fadeInUp 0.6s ease-out;
}

.cbam-slide .harvard-section:nth-child(2) {
    animation-delay: 0.1s;
}

.cbam-slide .harvard-section:nth-child(3) {
    animation-delay: 0.2s;
}

.cbam-slide .harvard-section:nth-child(4) {
    animation-delay: 0.3s;
}