/* ========================================
   solution-pages.css - 解决方案子页面共享样式
   适用于：绿电转型、虚拟电厂、零碳园区等页面
   ======================================== */

/* ---------- 通用区域样式 ---------- */
.solution-section {
  padding: 80px 0;
}

.solution-section.bg-light {
  background: var(--bg-light);
}

/* ---------- 为什么转型 ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.why-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

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

.why-icon {
  width: 60px;
  height: 60px;
  background: rgba(126,182,59,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.why-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.why-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.why-data {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.data-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
}

.data-unit {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ---------- 方案展示 ---------- */
.solution-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 50px;
}

.showcase-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.showcase-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.showcase-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.showcase-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 30px;
}

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

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(126,182,59,0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.feature-text h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 14px;
  color: var(--text-secondary);
}

.tech-highlight {
  margin-top: 50px;
  background: linear-gradient(135deg, var(--primary) 0%, #6a9a32 100%);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: #fff;
  text-align: center;
}

.tech-highlight-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.tech-highlight-content p {
  font-size: 16px;
  opacity: 0.95;
  max-width: 700px;
  margin: 0 auto;
}

/* ---------- 成功案例 ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

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

.case-image {
  height: 220px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.case-card:hover .case-image img {
  transform: scale(1.05);
}

.case-content {
  padding: 30px;
}

.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(126,182,59,0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 12px;
}

.case-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.case-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.case-stats {
  display: flex;
  gap: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.case-stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}

.stat-unit {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---------- 客户价值 ---------- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.value-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.value-cost::before { background: var(--primary); }
.value-carbon::before { background: #2196F3; }
.value-growth::before { background: #FF9800; }

.value-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.value-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.value-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.value-highlight {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
}

.value-carbon .value-highlight { color: #2196F3; }
.value-growth .value-highlight { color: #FF9800; }

/* ---------- VPP概念 ---------- */
.vpp-concept {
  margin-top: 50px;
}

.concept-visual {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 50px 30px;
  margin-bottom: 30px;
}

.concept-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.flow-icon {
  width: 60px;
  height: 60px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: var(--shadow-sm);
}

.flow-node span {
  font-size: 13px;
  color: var(--text-secondary);
}

.flow-arrow {
  font-size: 24px;
  color: var(--primary);
}

.flow-center {
  padding: 0 20px;
}

.flow-core {
  width: 100px;
  height: 100px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(126,182,59,0.3);
}

.flow-target .flow-icon {
  background: var(--primary);
  color: #fff;
}

.concept-desc {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.policy-badge {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(126,182,59,0.05);
  border-left: 4px solid var(--primary);
  padding: 24px 30px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: 40px;
}

.badge-icon {
  font-size: 32px;
}

.badge-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.badge-content p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ---------- 技术架构 ---------- */
.tech-arch {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.arch-layer {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-md);
}

.arch-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--border-color);
}

.arch-icon {
  width: 48px;
  height: 48px;
  background: rgba(126,182,59,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.arch-header h3 {
  font-size: 18px;
  font-weight: 700;
}

.arch-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.arch-feature {
  padding: 12px 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.four-functions {
  margin-top: 60px;
  text-align: center;
}

.four-functions h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 30px;
}

.function-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.function-item {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  box-shadow: var(--shadow-sm);
}

.function-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.3;
  margin-bottom: 8px;
}

.function-item h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.function-item p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---------- 服务卡片 ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
}

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

.service-icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(126,182,59,0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
}

.subsidy-highlight {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, rgba(255,152,0,0.1) 0%, rgba(255,152,0,0.05) 100%);
  border: 1px solid rgba(255,152,0,0.2);
  padding: 24px 30px;
  border-radius: var(--radius-lg);
  margin-top: 40px;
}

.subsidy-icon {
  font-size: 36px;
}

.subsidy-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
  color: #FF9800;
}

.subsidy-content p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ---------- 成果展示 ---------- */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.achievement-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

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

.achievement-map {
  height: 160px;
  overflow: hidden;
}

.achievement-map img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.achievement-content {
  padding: 24px;
}

.achievement-location {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.achievement-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.achievement-content p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.achievement-stats {
  display: flex;
  gap: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.a-stat {
  display: flex;
  flex-direction: column;
}

.a-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.a-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.case-highlight {
  margin-top: 50px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.case-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 16px;
}

.case-highlight h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.case-highlight p {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- 零碳园区路径 ---------- */
.path-section {
  margin-top: 50px;
}

.path-section h3 {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
}

.path-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  width: 96vw;
  margin-left: calc(50% - 48vw);
}

.path-step {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  flex: 1;
  min-width: 0;
  transition: var(--transition);
}

.path-step:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.step-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.step-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.path-step h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.path-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.path-arrow {
  font-size: 20px;
  color: var(--primary);
  flex-shrink: 0;
  align-self: center;
  padding: 0 6px;
}

.tech-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.tech-card {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: var(--transition);
}

.tech-card:hover {
  background: #fff;
  box-shadow: var(--shadow-md);
}

.tech-card-icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.tech-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.tech-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.case-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-top: 50px;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.case-showcase .showcase-image {
  height: 100%;
  border-radius: 0;
}

.case-showcase .showcase-image img {
  height: 100%;
  min-height: 350px;
}

.case-showcase .showcase-content {
  padding: 40px;
}

.showcase-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 16px;
}

.showcase-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.showcase-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.showcase-stats {
  display: flex;
  gap: 30px;
}

.s-stat {
  display: flex;
  flex-direction: column;
}

.s-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
}

.s-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---------- 能碳平台 ---------- */
.platform-section {
  margin-top: 50px;
}

.platform-intro {
  text-align: center;
  margin-bottom: 40px;
}

.platform-intro h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.platform-intro p {
  font-size: 15px;
  color: var(--text-secondary);
}

.platform-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.platform-feature {
  display: flex;
  gap: 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.platform-feature:hover {
  box-shadow: var(--shadow-md);
}

.pf-icon {
  width: 56px;
  height: 56px;
  background: rgba(126,182,59,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.pf-content h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pf-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.integration-advantage {
  display: flex;
  align-items: center;
  gap: 24px;
  background: linear-gradient(135deg, rgba(126,182,59,0.1) 0%, rgba(126,182,59,0.05) 100%);
  border-radius: var(--radius-lg);
  padding: 30px 40px;
  margin-top: 40px;
}

.ia-icon {
  font-size: 40px;
}

.ia-content h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.ia-content p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ---------- 业务价值 ---------- */
.value-props {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.value-prop {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.value-prop:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.vp-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.value-prop h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.value-prop p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- CTA区域 ---------- */
.cta-section {
  padding: 60px 0;
  background: var(--bg-light);
}

.cta-content--inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-text {
  flex: 1;
}

.cta-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.cta-desc {
  font-size: 15px;
  color: var(--text-secondary);
}

.cta-actions--right {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.cta-actions--right .btn {
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.25s;
  cursor: pointer;
}

.cta-actions--right .btn--primary {
  background: var(--primary);
  color: #fff;
  border: none;
}

.cta-actions--right .btn--primary:hover {
  background: #6a9a32;
}

.cta-actions--right .btn--outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.cta-actions--right .btn--outline:hover {
  background: var(--primary);
  color: #fff;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .why-grid,
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid,
  .achievements-grid,
  .value-props {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-showcase,
  .case-showcase {
    grid-template-columns: 1fr;
  }

  .case-showcase .showcase-image img {
    min-height: 250px;
  }

  .tech-arch {
    grid-template-columns: 1fr;
  }

  .function-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .platform-features {
    grid-template-columns: 1fr;
  }

  .path-flow {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    width: 98vw;
    margin-left: calc(50% - 49vw);
  }

  .path-arrow {
    display: none;
  }

  .path-step {
    width: auto;
    padding: 24px 16px;
  }
}

@media (max-width: 768px) {
  .solution-section {
    padding: 50px 0;
  }

  .why-grid,
  .value-grid,
  .cases-grid,
  .services-grid,
  .achievements-grid,
  .value-props,
  .tech-cards {
    grid-template-columns: 1fr;
  }

  .function-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, auto);
    gap: 12px;
  }

  .function-item {
    padding: 20px 12px;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
  }

  .function-num {
    font-size: 24px;
    margin-bottom: 6px;
  }

  .function-item h4 {
    font-size: 15px;
    margin-bottom: 6px;
  }

  .function-item p {
    font-size: 12px;
    line-height: 1.5;
  }

  .cta-content--inline {
    flex-direction: column;
    text-align: center;
  }

  .cta-actions--right {
    flex-direction: column;
    width: 100%;
  }

  .cta-actions--right .btn {
    width: 100%;
    text-align: center;
  }

  .concept-flow {
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 0;
    justify-content: flex-start;
  }

  .flow-node {
    flex-shrink: 0;
  }

  .flow-icon {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }

  .flow-node span {
    font-size: 11px;
    white-space: nowrap;
  }

  .flow-arrow {
    font-size: 18px;
    flex-shrink: 0;
  }

  .flow-core {
    width: 80px;
    height: 80px;
    font-size: 12px;
    flex-shrink: 0;
  }

  .policy-badge,
  .subsidy-highlight,
  .integration-advantage {
    flex-direction: column;
    text-align: center;
  }

  .showcase-stats,
  .case-stats,
  .achievement-stats {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .why-card,
  .value-card,
  .service-card,
  .achievement-card,
  .value-prop {
    padding: 24px 20px;
  }

  .tech-highlight {
    padding: 24px;
  }

  .case-showcase .showcase-content {
    padding: 24px;
  }

  .platform-feature {
    flex-direction: column;
    text-align: center;
  }

  .function-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   新增组件样式 - VPP/绿电/零碳园区深度充实
   ============================================================ */

/* ---------- VPP市场价值卡片 ---------- */
.vpp-value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 50px 0 40px;
}

.vpp-value-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.vpp-value-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  color: white;
}

.vpp-value-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.vpp-value-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.vpp-value-stat {
  display: inline-block;
  background: var(--bg-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid rgba(126,182,59,0.2);
}

/* ---------- 收益对比柱图 ---------- */
.revenue-compare {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-top: 40px;
}

.revenue-compare h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 28px;
}

.compare-bars {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 16px;
}

.compare-bar-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.compare-label {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 130px;
  flex-shrink: 0;
}

.compare-bar-wrap {
  flex: 1;
  background: rgba(0,0,0,0.05);
  border-radius: 6px;
  height: 36px;
  overflow: hidden;
}

.compare-bar {
  height: 100%;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  transition: width 1s ease;
}

.compare-bar span {
  font-size: 13px;
  font-weight: 700;
  color: white;
  white-space: nowrap;
}

.compare-note {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 8px;
}

/* ---------- 可调资源卡片 ---------- */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.resource-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.resource-icon {
  font-size: 32px;
  margin-bottom: 14px;
  display: block;
}

.resource-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.resource-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
}

.resource-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.resource-tags span {
  font-size: 11px;
  color: var(--primary);
  background: rgba(126,182,59,0.1);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
}

/* ---------- 服务详情列表 ---------- */
.service-detail-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.service-detail-list li {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---------- 合作流程 ---------- */
.process-flow {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 50px;
  overflow-x: auto;
  padding: 10px 0;
}

.process-step {
  flex: 1;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  position: relative;
  min-width: 180px;
  transition: var(--transition);
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.process-step-num {
  font-size: 11px;
  font-weight: 800;
  color: var(--primary);
  background: rgba(126,182,59,0.1);
  border-radius: 50px;
  padding: 3px 10px;
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--font-en);
}

.process-step-icon {
  font-size: 32px;
  margin-bottom: 12px;
  display: block;
}

.process-step h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.process-step-time {
  font-size: 12px;
  font-weight: 700;
  color: var(--secondary);
  background: rgba(0,82,163,0.08);
  border-radius: 50px;
  padding: 3px 10px;
  display: inline-block;
}

.process-arrow-h {
  font-size: 24px;
  color: var(--primary);
  padding: 0 8px;
  flex-shrink: 0;
}

/* ---------- 适合企业卡片 ---------- */
.fit-enterprise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.fit-enterprise-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  text-align: center;
}

.fit-enterprise-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.fe-icon {
  font-size: 40px;
  margin-bottom: 14px;
  display: block;
}

.fit-enterprise-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.fit-enterprise-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.fe-benefit {
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  border-left: 3px solid var(--primary);
}

.fe-benefit strong {
  color: var(--primary);
}

/* ---------- 绿证卡片 ---------- */
.green-cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 50px 0 40px;
}

.green-cert-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.green-cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.cert-icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: block;
}

.green-cert-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.green-cert-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.cert-price-range {
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg-light);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

.cert-price-range strong {
  color: var(--primary);
  font-size: 15px;
}

/* ---------- 对比表格 ---------- */
.cert-comparison {
  margin-top: 50px;
}

.cert-comparison h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.comparison-table {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.ct-header {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  background: linear-gradient(135deg, var(--primary), #5a9a2a);
  padding: 0;
}

.ct-header .ct-cell {
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 700;
  color: white;
  border-right: 1px solid rgba(255,255,255,0.2);
}

.ct-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  border-top: 1px solid var(--border-color);
  background: #fff;
  transition: background 0.2s;
}

.ct-row:hover {
  background: var(--bg-light);
}

.ct-cell {
  padding: 14px 20px;
  font-size: 13px;
  color: var(--text-secondary);
  border-right: 1px solid var(--border-color);
}

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

/* ---------- showcase额外特性 ---------- */
.showcase-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.feature-icon {
  font-size: 20px;
  width: 40px;
  height: 40px;
  background: rgba(126,182,59,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-text h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ---------- 案例3列 ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 50px;
}

/* ---------- 零碳园区技术卡片3列 ---------- */
.tech-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 40px 0;
}

/* ---------- 碳市场知识板块 ---------- */
.carbon-market-section {
  margin-top: 50px;
}

.carbon-market-section h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.carbon-market-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.cm-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.cm-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.cm-icon {
  font-size: 32px;
  margin-bottom: 14px;
  display: block;
}

.cm-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.cm-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.cm-data {
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-light);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--secondary);
}

.cm-data strong {
  color: var(--secondary);
}

/* ---------- 响应式补充 ---------- */
@media (max-width: 1200px) {
  .vpp-value-grid,
  .resource-grid,
  .fit-enterprise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-flow {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .process-arrow-h { display: none; }
}

@media (max-width: 768px) {
  .vpp-value-grid,
  .resource-grid,
  .fit-enterprise-grid,
  .green-cert-grid,
  .carbon-market-grid,
  .cases-grid,
  .tech-cards {
    grid-template-columns: 1fr;
  }
  .compare-label { min-width: 90px; font-size: 11px; }
  .ct-header, .ct-row {
    grid-template-columns: 1fr 1fr;
  }
  .ct-header .ct-cell:nth-child(n+3),
  .ct-row .ct-cell:nth-child(n+3) { display: none; }
  .cert-comparison h3 { font-size: 16px; }
  .revenue-compare { padding: 20px; }
  .process-flow {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .vpp-value-grid,
  .resource-grid,
  .fit-enterprise-grid {
    grid-template-columns: 1fr;
  }
  .green-cert-grid { grid-template-columns: 1fr; }
  .carbon-market-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
}